Article(id=1189585009322222590, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1189585006872749036, articleNumber=null, orderNo=null, doi=10.7654/j.issn.2097-1974.20250401, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1753632000000, receivedDateStr=2025-07-28, revisedDate=1753977600000, revisedDateStr=2025-08-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1761548767643, onlineDateStr=2025-10-27, pubDate=1756051200000, pubDateStr=2025-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761548767643, onlineIssueDateStr=2025-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761548767643, creator=13701087609, updateTime=1761548767643, updator=13701087609, issue=Issue{id=1189585006872749036, tenantId=1146029695717560320, journalId=1146119989267898375, year='2025', volume='48', issue='4', pageStart='1', pageEnd='106', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761548767059, creator=13701087609, updateTime=1761552469778, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1189600537306718633, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1189585006872749036, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1189600537306718634, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1189585006872749036, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=17, ext={EN=ArticleExt(id=1189585009599046656, articleId=1189585009322222590, tenantId=1146029695717560320, journalId=1146119989267898375, language=EN, title=A Comparative Study of Three TVC Actuators for a Launch Vehicle Block, columnId=1154057566637249092, journalTitle=Missiles and Space Vehicles, columnName=Special Contribution, runingTitle=null, highlight=null, articleAbstract=
For higher reliability, higher efficiency and easier maintenance, three TVC actuators for a hydrolox launch vehicle block are studied comparatively, in aspects of designs, models and testing performances, namely, a Servo-Valve Controlled Electro-Hydraulic Actuator (SHA), an Electro-Mechanical Actuator (EMA) and an Electro-Hydrostatic Actuator (EHA), each outputting a peak power of 3 kW. A fully packaged duplex EHA design is proposed, lightweight and compact by means of innovating indepth integrations in the actuator, Electro-Hydrostatic Module (EHM), Servo Motor Pumps (SMPs) and Electronic Control Units (ECUs). The weight of a TVC system with four EHAs is 85 kg, reduced by 37%, compared to the SHA counterpart of 135 kg. The dynamic capability of three TVC actuators is almost on a par, with the first-order frequency bandwidth of greater than 30 rad/s. As to the overall efficiency of energy conversion, it is one order of magnitude higher for an EMA or an EHA than a SHA. In an operation profile on ground with a duration of 1 200 s, the efficiency is lowest for an SHA, less than 1%, and heated quickly, with the temperature reaching over 100 ℃ at the hydraulic pump. In contrast, as to the EMA and EHA,the efficiency is remarkably upgraded to over 20%, with the temperature only slightly increasing by 5 ℃ at the pump or the electric motor. It demonstrates that an EHA embodies both the heavy loading, high reliability of a SHA, and the high efficiency, good maintenance of an EMA, at the same time overcoming the weak points in dynamics, power density, oil sealing, etc., providing an intriguing option for highly reliable and secure launch vehicles. The EHA has finished its maiden flight as the first one for launch vehicles.
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为满足伺服机构高可靠性、高效率、使用维护更方便等需求,从设计、模型和实测性能数据方面,对用于同一个运载火箭模块的传统电液伺服机构和新兴机电伺服机构及电静压伺服机构共三种方案进行了比较分析。提出驱传控全封装一体化双余度电静压伺服机构设计新方案。通过深度一体化集成设计实现了轻质小型化,一个系统含四台伺服机构,总质量比电液伺服系统降低了37%;三种伺服机构动态能力相当,一阶相频宽均超过30 rad/s;两种电驱动伺服机构的综合能量利用效率比电液伺服机构高出一个数量级。设计1 200 s的地面测试工况开展试验,试验结果表明:电液伺服机构的实测综合能量利用效率最低,不足1%,且液压泵处的温升超过100 ℃,发热严重;而机电伺服机构和电静压伺服机构的效率可达20%,且液压泵和电机处的温升只有5 ℃,发热很小。研究表明,电静压伺服机构兼顾传统电液方案重载、高可靠性和机电方案高效率、使用维护方便的优点,可以方便实现冗余设计,解决了传统泵控系统的动态低、比功率不高等问题,且消除了油液外渗漏,为运载火箭提供了一种高可靠、高安全的电驱动推力矢量控制方案,并实现了该类产品在运载火箭上的首飞首用。
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曾 思(1970—),男,研究员,主要研究方向为高比功率高可靠性伺服机构技术。
陈克勤(1984—),男,研究员,主要研究方向为运载火箭伺服机构技术。
赵守军(1972—),男,研究员,主要研究方向为高性能电驱动静液压伺服机构技术。
皇甫雨石(1998—),男,工程师,主要研究方向为伺服控制与仿真技术。
兰 天(1988—),男,高级工程师,主要研究方向为运载火箭伺服机构集成设计技术。
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曾 思(1970—),男,研究员,主要研究方向为高比功率高可靠性伺服机构技术。
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陈克勤(1984—),男,研究员,主要研究方向为运载火箭伺服机构技术。
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兰 天(1988—),男,高级工程师,主要研究方向为运载火箭伺服机构集成设计技术。
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兰 天(1988—),男,高级工程师,主要研究方向为运载火箭伺服机构集成设计技术。
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2025., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1189585644855747205, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, xref=null, ext=[AuthorCompanyExt(id=1189585644859941510, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, companyId=1189585644855747205, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. Beijing Institute of Precision Mechatronics and Controls, Beijing, 100076), AuthorCompanyExt(id=1189585644872524423, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, companyId=1189585644855747205, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.北京精密机电控制设备研究所,北京,100076)]), AuthorCompany(id=1189585644939633288, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, xref=null, ext=[AuthorCompanyExt(id=1189585644943827593, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, companyId=1189585644939633288, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Innovation Center for Control Actuators, Beijing, 100076), AuthorCompanyExt(id=1189585644956410506, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, companyId=1189585644939633288, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.控制执行机构技术创新中心,北京,100076)])], figs=[ArticleFig(id=1189585648332825273, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.1, caption=
The TVC layout, figureFileSmall=HoPTdmbW9ZQivIS9Dc+CrA==, figureFileBig=ya3OVApK1GzGu8Ni5hI86A==, tableContent=null), ArticleFig(id=1189585648404128442, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图1, caption=
火箭推力矢量控制配置, figureFileSmall=HoPTdmbW9ZQivIS9Dc+CrA==, figureFileBig=ya3OVApK1GzGu8Ni5hI86A==, tableContent=null), ArticleFig(id=1189585648576094907, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.2, caption=
The TVC system with SHAs, figureFileSmall=74GlPtNLMpfTX697yfUuFw==, figureFileBig=XCJw9PioEBo4W9AMF0qLbg==, tableContent=null), ArticleFig(id=1189585648647398076, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图2, caption=
电液伺服机构系统配置, figureFileSmall=74GlPtNLMpfTX697yfUuFw==, figureFileBig=XCJw9PioEBo4W9AMF0qLbg==, tableContent=null), ArticleFig(id=1189585648748061373, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.3, caption=
The SHA schematics, figureFileSmall=IL2ovmNlnHGXNsH6xvKWew==, figureFileBig=KW8bxS5gzs01Zze/jkmwBQ==, tableContent=null), ArticleFig(id=1189585648819364542, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图3, caption=
电液伺服机构原理, figureFileSmall=IL2ovmNlnHGXNsH6xvKWew==, figureFileBig=KW8bxS5gzs01Zze/jkmwBQ==, tableContent=null), ArticleFig(id=1189585648903250623, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.4, caption=
The SHA photo, figureFileSmall=8bUrTPkspOupMSStR8Oczg==, figureFileBig=bEKr4AtzkwP2CLHICzq/sA==, tableContent=null), ArticleFig(id=1189585648974553792, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图4, caption=
电液伺服机构实物, figureFileSmall=8bUrTPkspOupMSStR8Oczg==, figureFileBig=bEKr4AtzkwP2CLHICzq/sA==, tableContent=null), ArticleFig(id=1189585649054245569, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.5, caption=
The TVC system with EMAs, figureFileSmall=CqQt5a8xP8w73jB1/vNCjA==, figureFileBig=LqOuyIQiGDhdwz33EqW/rw==, tableContent=null), ArticleFig(id=1189585649125548738, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图5, caption=
机电伺服机构系统配置, figureFileSmall=CqQt5a8xP8w73jB1/vNCjA==, figureFileBig=LqOuyIQiGDhdwz33EqW/rw==, tableContent=null), ArticleFig(id=1189585649192657603, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.6, caption=
The EMA schematics, figureFileSmall=bpi8uVo4OP6wkuGJC8H5IA==, figureFileBig=B6dJbdF7RkRJtoDH5EL07g==, tableContent=null), ArticleFig(id=1189585649255572164, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图6, caption=
机电伺服机构原理, figureFileSmall=bpi8uVo4OP6wkuGJC8H5IA==, figureFileBig=B6dJbdF7RkRJtoDH5EL07g==, tableContent=null), ArticleFig(id=1189585649314292421, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.7, caption=
The EMA photo, figureFileSmall=N20F3fuD9+2Mi3ujfY27HQ==, figureFileBig=Y0O1bXzVDQFQXq3B7atfwA==, tableContent=null), ArticleFig(id=1189585649385595590, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图7, caption=
机电伺服机构样机, figureFileSmall=N20F3fuD9+2Mi3ujfY27HQ==, figureFileBig=Y0O1bXzVDQFQXq3B7atfwA==, tableContent=null), ArticleFig(id=1189585649461093063, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.8, caption=
The TVC system with EHAs, figureFileSmall=v2lgZQ9kNHOxrzJp+ld/xw==, figureFileBig=wIvIcFLuuYHcgZrTWLxRug==, tableContent=null), ArticleFig(id=1189585649528201928, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图8, caption=
电静压伺服机构配置, figureFileSmall=v2lgZQ9kNHOxrzJp+ld/xw==, figureFileBig=wIvIcFLuuYHcgZrTWLxRug==, tableContent=null), ArticleFig(id=1189585649595310793, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.9, caption=
The EHA schematics, figureFileSmall=vlCEhsZruLZpaquxm+M3fQ==, figureFileBig=edzcPYLUrSA0+X2uFdOUIA==, tableContent=null), ArticleFig(id=1189585649654031050, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图9, caption=
电静压伺服机构原理, figureFileSmall=vlCEhsZruLZpaquxm+M3fQ==, figureFileBig=edzcPYLUrSA0+X2uFdOUIA==, tableContent=null), ArticleFig(id=1189585649721139915, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.10, caption=
The EHA photo, figureFileSmall=pVYejjePTg7A63fRPKaZ9w==, figureFileBig=ZwL4xVF13n6TbGclXK6A8Q==, tableContent=null), ArticleFig(id=1189585649792443084, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图10, caption=
电静压伺服机构实物, figureFileSmall=pVYejjePTg7A63fRPKaZ9w==, figureFileBig=ZwL4xVF13n6TbGclXK6A8Q==, tableContent=null), ArticleFig(id=1189585649859551949, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.11, caption=
A normalized control block diagram, figureFileSmall=LPcb3GThFdX41itzaJtLjA==, figureFileBig=J3AjF/r4Y9pYcCfbhZAvHA==, tableContent=null), ArticleFig(id=1189585649930855118, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图11, caption=
泛化的伺服机构控制模型, figureFileSmall=LPcb3GThFdX41itzaJtLjA==, figureFileBig=J3AjF/r4Y9pYcCfbhZAvHA==, tableContent=null), ArticleFig(id=1189585650954265295, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.12, caption=
The control algorithm for speed and current loop, figureFileSmall=37DMpw/GpCn7N1T/U5ZoNA==, figureFileBig=/BXIV88nGjhLTTdpyKlOHQ==, tableContent=null), ArticleFig(id=1189585651046539984, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图12, caption=
永磁同步电机双环控制框图, figureFileSmall=37DMpw/GpCn7N1T/U5ZoNA==, figureFileBig=/BXIV88nGjhLTTdpyKlOHQ==, tableContent=null), ArticleFig(id=1189585651109454545, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.13, caption=
The combined control algorithm for the position loop, figureFileSmall=vT/Q48IBGT2YzhjP9hKDmg==, figureFileBig=ZLi8qip826ZctXbjre37pA==, tableContent=null), ArticleFig(id=1189585651168174802, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图13, caption=
位置回路组合控制算法, figureFileSmall=vT/Q48IBGT2YzhjP9hKDmg==, figureFileBig=ZLi8qip826ZctXbjre37pA==, tableContent=null), ArticleFig(id=1189585651231089363, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.14, caption=
A normalized no-load control block diagram, figureFileSmall=3qMjwqdcceNBE76rIF4m2A==, figureFileBig=iYkAO6v2aicp32Mi/fon5A==, tableContent=null), ArticleFig(id=1189585651302392532, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图14, caption=
泛化的伺服机构空载控制模型, figureFileSmall=3qMjwqdcceNBE76rIF4m2A==, figureFileBig=iYkAO6v2aicp32Mi/fon5A==, tableContent=null), ArticleFig(id=1189585651382084309, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.15, caption=
The power bond graph models for three actuators, figureFileSmall=qo8dI511BGx5GwoM4tw1qA==, figureFileBig=t1jzuX3cGhGp+YNXzPpdhg==, tableContent=null), ArticleFig(id=1189585651449193174, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图15, caption=
三种伺服机构的功率键合图简化模型, figureFileSmall=qo8dI511BGx5GwoM4tw1qA==, figureFileBig=t1jzuX3cGhGp+YNXzPpdhg==, tableContent=null), ArticleFig(id=1189585651516302039, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.16, caption=
The no-load frequency response curves, figureFileSmall=0RqA12jbQp+gldFraXx/Eg==, figureFileBig=RAlGSpmuHh02dKJ2YyPwDQ==, tableContent=null), ArticleFig(id=1189585651583410904, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图16, caption=
伺服机构空载频率特性曲线, figureFileSmall=0RqA12jbQp+gldFraXx/Eg==, figureFileBig=RAlGSpmuHh02dKJ2YyPwDQ==, tableContent=null), ArticleFig(id=1189585651658908377, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.17, caption=
The phase frequency characteristics of three control components, figureFileSmall=7TxwpnU+Zllq3rp4g4fzDA==, figureFileBig=Kfo1LIwAOOV62DsS5FFrag==, tableContent=null), ArticleFig(id=1189585651721822938, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图17, caption=
三个控制器件的动态特性相频曲线, figureFileSmall=7TxwpnU+Zllq3rp4g4fzDA==, figureFileBig=Kfo1LIwAOOV62DsS5FFrag==, tableContent=null), ArticleFig(id=1189585651788931803, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.18, caption=
The position loop curves of three actuators, figureFileSmall=jgAo8r2Rns6ofOW794p1uw==, figureFileBig=i3TA2/V7cX2u1hdxVGYp7A==, tableContent=null), ArticleFig(id=1189585651856040668, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图18, caption=
三种伺服机构位置回环曲线, figureFileSmall=jgAo8r2Rns6ofOW794p1uw==, figureFileBig=i3TA2/V7cX2u1hdxVGYp7A==, tableContent=null), ArticleFig(id=1189585651918955229, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.19, caption=
The position error of three actuators, figureFileSmall=Jm1fZTMQD5It/i+c2H/CBw==, figureFileBig=PkUQVYqWurUA/yBiBCRY1Q==, tableContent=null), ArticleFig(id=1189585652002841310, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图19, caption=
三种伺服机构位置误差曲线, figureFileSmall=Jm1fZTMQD5It/i+c2H/CBw==, figureFileBig=PkUQVYqWurUA/yBiBCRY1Q==, tableContent=null), ArticleFig(id=1189585652082533087, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.20, caption=
The step response curves, figureFileSmall=aYBVLqTWdi4WZ9u02+SOog==, figureFileBig=kFiUlSkopcx94bf1zm/BqA==, tableContent=null), ArticleFig(id=1189585652153836256, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图20, caption=
三种伺服机构阶跃特性曲线, figureFileSmall=aYBVLqTWdi4WZ9u02+SOog==, figureFileBig=kFiUlSkopcx94bf1zm/BqA==, tableContent=null), ArticleFig(id=1189585652216750817, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.21, caption=
The frequency response curves of three actuators, figureFileSmall=b1QiDIPupvKAk2vfyJ9yYw==, figureFileBig=bAJVinIFNm1F8FfjHXkZuw==, tableContent=null), ArticleFig(id=1189585654179685090, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图21, caption=
三种伺服机构角位移频率特性曲线, figureFileSmall=b1QiDIPupvKAk2vfyJ9yYw==, figureFileBig=bAJVinIFNm1F8FfjHXkZuw==, tableContent=null), ArticleFig(id=1189585654276154083, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.22, caption=
The input and output power curves (15 rad/s sinuous gimballing), figureFileSmall=tgqpA/Zd1XpKzsgGP36zUQ==, figureFileBig=aQ1n03zdM2WjkyN1Yh1qvQ==, tableContent=null), ArticleFig(id=1189585654351651556, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图22, caption=
三种伺服机构输入、输出功率曲线(0.4°-15 rad/s正弦波运动), figureFileSmall=tgqpA/Zd1XpKzsgGP36zUQ==, figureFileBig=aQ1n03zdM2WjkyN1Yh1qvQ==, tableContent=null), ArticleFig(id=1189585654410371813, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.23, caption=
The input and output power curves (50rad/s sinuous gimballing), figureFileSmall=Gr16r6HmhqtNZYy0qUWSyQ==, figureFileBig=jvkK98548DitA0CRFqym6g==, tableContent=null), ArticleFig(id=1189585654469092070, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图23, caption=
三种伺服机构输入、输出功率曲线(0.8°-55 rad/s正弦波运动), figureFileSmall=Gr16r6HmhqtNZYy0qUWSyQ==, figureFileBig=jvkK98548DitA0CRFqym6g==, tableContent=null), ArticleFig(id=1189585655475725031, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.24, caption=
The SHA thermal images, figureFileSmall=HAreKfQNBNBJRYzshWASbw==, figureFileBig=EDkORLsXg5zqkEL8Hl6EBQ==, tableContent=null), ArticleFig(id=1189585655542833896, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图24, caption=
电液伺服机构热成像, figureFileSmall=HAreKfQNBNBJRYzshWASbw==, figureFileBig=EDkORLsXg5zqkEL8Hl6EBQ==, tableContent=null), ArticleFig(id=1189585655609942761, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.25, caption=
The EMA thermal images, figureFileSmall=K+y+MWg8NvVcoRvRakZJDQ==, figureFileBig=tk46zBTqxTyFZqjGygG7nA==, tableContent=null), ArticleFig(id=1189585655672857322, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图25, caption=
机电伺服机构热成像, figureFileSmall=K+y+MWg8NvVcoRvRakZJDQ==, figureFileBig=tk46zBTqxTyFZqjGygG7nA==, tableContent=null), ArticleFig(id=1189585655744160491, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.26, caption=
The EHA thermal images, figureFileSmall=4YTYk5KLtUtacmAd5L5gug==, figureFileBig=M9tD+gLHk5P0sVYJ4rq2Nw==, tableContent=null), ArticleFig(id=1189585655823852268, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图26, caption=
电静压伺服机构热成像, figureFileSmall=4YTYk5KLtUtacmAd5L5gug==, figureFileBig=M9tD+gLHk5P0sVYJ4rq2Nw==, tableContent=null), ArticleFig(id=1189585655911932653, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.27, caption=
The temperature curves of three actuators, figureFileSmall=tjSjd0TTAQqt8aEQcQIZeA==, figureFileBig=VRDcdXe1lciitPKSXsgMlw==, tableContent=null), ArticleFig(id=1189585655970652910, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图27, caption=
三种伺服机构温升曲线, figureFileSmall=tjSjd0TTAQqt8aEQcQIZeA==, figureFileBig=VRDcdXe1lciitPKSXsgMlw==, tableContent=null), ArticleFig(id=1189585656041956079, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.28, caption=
The gimballing angle curves of SHAs in a flight, figureFileSmall=sVqQ0mrYOaq4zVaA8yghcg==, figureFileBig=hjZYWn5nUtmjsWaRMGO8fQ==, tableContent=null), ArticleFig(id=1189585656113259248, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图28, caption=
电液伺服机构飞行曲线, figureFileSmall=sVqQ0mrYOaq4zVaA8yghcg==, figureFileBig=hjZYWn5nUtmjsWaRMGO8fQ==, tableContent=null), ArticleFig(id=1189585656184562417, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Fig.29, caption=
The gimballing angle of EHAs in a flight, figureFileSmall=XlZEcvH1PoD/5UYBloLBHg==, figureFileBig=lzwK8pu7kPJX0nVrWubhvg==, tableContent=null), ArticleFig(id=1189585656314585842, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=图29, caption=
电静压伺服机构飞行曲线, figureFileSmall=XlZEcvH1PoD/5UYBloLBHg==, figureFileBig=lzwK8pu7kPJX0nVrWubhvg==, tableContent=null), ArticleFig(id=1189585656415249139, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.1, caption=
The main design parameters of three actuators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 设计参数 | 数值 |
| 电液 | 机电 | 电静压 |
| 1 | 作动器行程/mm | ±46.5 | ±46.5 | ±46.5 |
| 2 | 活塞直径/mm | 46 | — | 46 |
| 3 | 活塞杆直径/mm | 35 | — | 35 |
| 4 | 活塞面积/mm2 | 700 | — | 700 |
| 5 | 丝杠公称直径/mm | — | 15 | — |
| 6 | 丝杠导程/mm | — | 4 | — |
| 7 | 液压泵排量/(mL·r-1) | 1.26 | — | 0.54 |
| 8 | 液压泵工作压力/MPa | 21 | — | 21 |
| 9 | 伺服电机(泵) 转动惯量/(kg·mm2) | — | 120 | 25.4 |
| 10 | 伺服电机(泵) 最高转速/(r·min-1) | 12 000 | 5 200 | 20 000 |
| 11 | 动力供电电压/V | AC380/ 高压氢气 | DC160 | DC270 |
| 12 | 控制供电电压/V | 28 | 28 | 28 |
| 13 | 伺服机构质量(四台)/kg | 115.6 | 36(60*) | 76 |
| 14 | 伺服控制(驱动)器质量/kg | 9.5 | 9(15*) | — |
| 15 | 动力电池质量/kg | — | 9 | 9 |
| 16 | 氢气管路质量/kg | 10 | — | / |
| 17 | 伺服系统总质量/kg | 135.1 | 54(84*) | 85 |
| 18 | 冗余设计 | 能源双/ 控制三 | 单通道 | 能源/ 控制双 |
), ArticleFig(id=1189585656490746612, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表1, caption=
三种伺服机构主要设计参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 设计参数 | 数值 |
| 电液 | 机电 | 电静压 |
| 1 | 作动器行程/mm | ±46.5 | ±46.5 | ±46.5 |
| 2 | 活塞直径/mm | 46 | — | 46 |
| 3 | 活塞杆直径/mm | 35 | — | 35 |
| 4 | 活塞面积/mm2 | 700 | — | 700 |
| 5 | 丝杠公称直径/mm | — | 15 | — |
| 6 | 丝杠导程/mm | — | 4 | — |
| 7 | 液压泵排量/(mL·r-1) | 1.26 | — | 0.54 |
| 8 | 液压泵工作压力/MPa | 21 | — | 21 |
| 9 | 伺服电机(泵) 转动惯量/(kg·mm2) | — | 120 | 25.4 |
| 10 | 伺服电机(泵) 最高转速/(r·min-1) | 12 000 | 5 200 | 20 000 |
| 11 | 动力供电电压/V | AC380/ 高压氢气 | DC160 | DC270 |
| 12 | 控制供电电压/V | 28 | 28 | 28 |
| 13 | 伺服机构质量(四台)/kg | 115.6 | 36(60*) | 76 |
| 14 | 伺服控制(驱动)器质量/kg | 9.5 | 9(15*) | — |
| 15 | 动力电池质量/kg | — | 9 | 9 |
| 16 | 氢气管路质量/kg | 10 | — | / |
| 17 | 伺服系统总质量/kg | 135.1 | 54(84*) | 85 |
| 18 | 冗余设计 | 能源双/ 控制三 | 单通道 | 能源/ 控制双 |
), ArticleFig(id=1189585656557855477, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.2, caption=
The identified parameters of three control components
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品类别 | 名称 | 单位 | 值 |
| 电液伺服机构 | 伺服阀 | rad/s | 115 |
| 机电伺服机构 | 伺服电机 | rad/s | 390 |
| 电静压伺服机构 | 伺服电机泵 | rad/s | 360 |
), ArticleFig(id=1189585656624964342, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表2, caption=
三种控制器件的等效一阶带宽辨识结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品类别 | 名称 | 单位 | 值 |
| 电液伺服机构 | 伺服阀 | rad/s | 115 |
| 机电伺服机构 | 伺服电机 | rad/s | 390 |
| 电静压伺服机构 | 伺服电机泵 | rad/s | 360 |
), ArticleFig(id=1189585656687878903, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.3, caption=
The identified parameters of load model
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 参数 | 符号 | 单位 | 数值 |
| 发动机 | 固有谐振频率 | | rad/s | 90 |
| 等效阻尼比 | | — | 0.04 |
| 作动器 | 机械液压耦合谐振频率 | | rad/s | 82.9、86、77.4* |
| 等效阻尼比 | | — | 0.25、0.14、0.24* |
| 开环增益 | 开环增益 | | — | 32 |
), ArticleFig(id=1189585656767570680, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表3, caption=
负载特性参数辨识结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 名称 | 参数 | 符号 | 单位 | 数值 |
| 发动机 | 固有谐振频率 | | rad/s | 90 |
| 等效阻尼比 | | — | 0.04 |
| 作动器 | 机械液压耦合谐振频率 | | rad/s | 82.9、86、77.4* |
| 等效阻尼比 | | — | 0.25、0.14、0.24* |
| 开环增益 | 开环增益 | | — | 32 |
), ArticleFig(id=1189585656868233977, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.4, caption=
The performance specification of three actuators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 指标要求 | 电液 | 机电 | 电静压 |
| 最大正摆角/(°) | ≥4 | 4.24 | 4.03 | 4.15 |
| 最大负摆角/(°) | ≤-4 | -4.21 | -4.03 | -4.15 |
| 回环宽度/(°) | ≤0.12 | 0.056 | 0.036 | 0.033 |
| 线性度/% | -2~2 | 0.82 | 0.57 | 0.16 |
| 位置增益偏差/% | -2~2 | 0.30 | 0.20 | 0.01 |
| 项目 | 指标要求 | 电液 | 机电 | 电静压 |
| 位置对称度/% | ≤2 | 0.16 | 0.03 | 0.01 |
| 最大摆角速度/((°)·s-1) | ≥40 | 45.34 | 40.96 | 48.69 |
| 最大摆角加速度/(rad·s-2) | ≥10 | 32.57 | 30.74 | 37.91 |
), ArticleFig(id=1189585656926954234, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表4, caption=
三种伺服机构实测控制性能指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 指标要求 | 电液 | 机电 | 电静压 |
| 最大正摆角/(°) | ≥4 | 4.24 | 4.03 | 4.15 |
| 最大负摆角/(°) | ≤-4 | -4.21 | -4.03 | -4.15 |
| 回环宽度/(°) | ≤0.12 | 0.056 | 0.036 | 0.033 |
| 线性度/% | -2~2 | 0.82 | 0.57 | 0.16 |
| 位置增益偏差/% | -2~2 | 0.30 | 0.20 | 0.01 |
| 项目 | 指标要求 | 电液 | 机电 | 电静压 |
| 位置对称度/% | ≤2 | 0.16 | 0.03 | 0.01 |
| 最大摆角速度/((°)·s-1) | ≥40 | 45.34 | 40.96 | 48.69 |
| 最大摆角加速度/(rad·s-2) | ≥10 | 32.57 | 30.74 | 37.91 |
), ArticleFig(id=1189585656998257403, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.5, caption=
The operation profile of three actuators
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| 序号 | 类型 | 幅值/(°) | 频率/ (rad·s-1) | 最大速度/ ((°) s-1) | 时间/s | 工况编号 |
| 1 | 零位 | 0 | — | 0 | 30 | ① |
| 2 | 正弦波 | 1 | 2.5 | 2.5 | 90 | ② |
| 3 | 零位 | 0 | — | 0 | 15 | ① |
| 4 | 正弦波 | 4 | 0.125 | 1 | 300 | ③ |
| 5 | 零位 | 0 | — | 0 | 15 | ① |
| 序号 | 类型 | 幅值/(°) | 频率/ (rad·s-1) | 最大速度/ ((°) s-1) | 时间/s | 工况编号 |
| 6 | 正弦波 | 3.2 | 1.25 | / | 10 | ④ |
| 7 | 零位 | 0 | — | 0 | 15 | ① |
| 8 | 正弦波 | 4 | 0.062 8 | 0.25 | 200 | ⑤ |
| 9 | 零位 | 0 | — | 0 | 15 | ① |
| 10 | 正弦波 | 3.2 | 6.28 | 20 | 20 | ⑥ |
| 11 | 零位 | 0 | — | 0 | 15 | ① |
| 12 | 方波 | 3.2 | 0.628 | 40 | 30 | ⑦ |
| 13 | 零位 | 0 | — | 0 | 15 | ① |
| 14 | 正弦波 | 0.2 | 1~200扫频 | 0.2~12 | 200 | ⑧ |
| 15 | 零位 | 0 | — | 0 | 15 | ① |
| 16 | 正弦波 | 0.4 | 1~200扫频 | 0.4~24 | 200 | ⑨ |
| 17 | 零位 | 0 | — | — | 15 | ① |
| 累计工作时间 | — | 1 200 | — |
), ArticleFig(id=1189585657061171964, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表5, caption=
三种伺服机构工作剖面
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| 序号 | 类型 | 幅值/(°) | 频率/ (rad·s-1) | 最大速度/ ((°) s-1) | 时间/s | 工况编号 |
| 1 | 零位 | 0 | — | 0 | 30 | ① |
| 2 | 正弦波 | 1 | 2.5 | 2.5 | 90 | ② |
| 3 | 零位 | 0 | — | 0 | 15 | ① |
| 4 | 正弦波 | 4 | 0.125 | 1 | 300 | ③ |
| 5 | 零位 | 0 | — | 0 | 15 | ① |
| 序号 | 类型 | 幅值/(°) | 频率/ (rad·s-1) | 最大速度/ ((°) s-1) | 时间/s | 工况编号 |
| 6 | 正弦波 | 3.2 | 1.25 | / | 10 | ④ |
| 7 | 零位 | 0 | — | 0 | 15 | ① |
| 8 | 正弦波 | 4 | 0.062 8 | 0.25 | 200 | ⑤ |
| 9 | 零位 | 0 | — | 0 | 15 | ① |
| 10 | 正弦波 | 3.2 | 6.28 | 20 | 20 | ⑥ |
| 11 | 零位 | 0 | — | 0 | 15 | ① |
| 12 | 方波 | 3.2 | 0.628 | 40 | 30 | ⑦ |
| 13 | 零位 | 0 | — | 0 | 15 | ① |
| 14 | 正弦波 | 0.2 | 1~200扫频 | 0.2~12 | 200 | ⑧ |
| 15 | 零位 | 0 | — | 0 | 15 | ① |
| 16 | 正弦波 | 0.4 | 1~200扫频 | 0.4~24 | 200 | ⑨ |
| 17 | 零位 | 0 | — | — | 15 | ① |
| 累计工作时间 | — | 1 200 | — |
), ArticleFig(id=1189585659422565117, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.6, caption=
The input and output power consumption list
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| 序号 | 工况 | 时间/s | 输出能量/kJ | 输入能量/kJ |
| 电液 | 机电 | 电静压 |
| 1 | ① | 30 | 0.006 5 | 35.32 | 1.12 | 1.10 |
| 2 | ② | 90 | 0.911 4 | 105.99 | 3.55 | 3.72 |
| 3 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 4 | ③ | 300 | 0.734 4 | 353.30 | 10.49 | 10.89 |
| 5 | ① | 15 | 0.003 33 | 17.66 | 0.56 | 0.55 |
| 6 | ④ | 10 | 2.786 6 | 19.29 | 7.08 | 7.16 |
| 7 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 8 | ⑤ | 200 | 0.261 4 | 235.53 | 7.18 | 7.27 |
| 9 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 10 | ⑥ | 20 | 1.994 8 | 26.31 | 6.28 | 6.60 |
| 11 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.5 |
| 12 | ⑦ | 30 | 1.402 5 | 5.43 | 3.19 | 4.13 |
| 13 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 14 | ⑧ | 200 | 1.548 7 | 333.04 | 9.02 | 9.35 |
| 15 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 16 | ⑨ | 200 | 5.042 8 | 407.95 | 19.82 | 18.5 |
| 17 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 合计 | 1200 | 14.72 | 1663.41 | 72.21 | 73.12 |
| 平均效率 | — | — | 0.89% | 20.5% | 20.1% |
), ArticleFig(id=1189585659942658814, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表6, caption=
三种伺服机构输出能量和输入能耗测量表
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| 序号 | 工况 | 时间/s | 输出能量/kJ | 输入能量/kJ |
| 电液 | 机电 | 电静压 |
| 1 | ① | 30 | 0.006 5 | 35.32 | 1.12 | 1.10 |
| 2 | ② | 90 | 0.911 4 | 105.99 | 3.55 | 3.72 |
| 3 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 4 | ③ | 300 | 0.734 4 | 353.30 | 10.49 | 10.89 |
| 5 | ① | 15 | 0.003 33 | 17.66 | 0.56 | 0.55 |
| 6 | ④ | 10 | 2.786 6 | 19.29 | 7.08 | 7.16 |
| 7 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 8 | ⑤ | 200 | 0.261 4 | 235.53 | 7.18 | 7.27 |
| 9 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 10 | ⑥ | 20 | 1.994 8 | 26.31 | 6.28 | 6.60 |
| 11 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.5 |
| 12 | ⑦ | 30 | 1.402 5 | 5.43 | 3.19 | 4.13 |
| 13 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 14 | ⑧ | 200 | 1.548 7 | 333.04 | 9.02 | 9.35 |
| 15 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 16 | ⑨ | 200 | 5.042 8 | 407.95 | 19.82 | 18.5 |
| 17 | ① | 15 | 0.003 3 | 17.66 | 0.56 | 0.55 |
| 合计 | 1200 | 14.72 | 1663.41 | 72.21 | 73.12 |
| 平均效率 | — | — | 0.89% | 20.5% | 20.1% |
), ArticleFig(id=1189585660043322111, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=EN, label=Tab.7, caption=
The input and output power consumption list
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | P in/kW | W in/kJ | n m/(r·min-1) | P out/kW | W out/kJ | η m/% | η ave/% |
| 电液伺服机构 |
| 6 (°)/s | 2.17 | 4.083 | — | 0.095 | 0.098 | 4.38 | 2.40 |
| 12 (°)/s | 2.71 | 5.104 | — | 0.199 | 0.222 | 7.34 | 4.35 |
| 22 (°)/s | 3.34 | 3.060 | — | 1.226 | 0.598 | 36.71 | 19.54 |
| 44 (°)/s | 4.51 | 4.131 | — | 2.891 | 1.359 | 64.12 | 32.90 |
| 机电伺服机构 |
| 6 (°)/s | 0.36 | 0.174 | 820 | 0.095 | 0.098 | 26.39 | 56.32 |
| 12 (°)/s | 1.02 | 0.653 | 1 590 | 0.199 | 0.222 | 19.51 | 34.00 |
| 22 (°)/s | 4.35 | 1.715 | 2 405 | 1.226 | 0.598 | 28.18 | 34.87 |
| 44 (°)/s | 8.08 | 4.154 | 4 960 | 2.891 | 1.359 | 35.78 | 32.72 |
| 电静压伺服机构 |
| 6 (°)/s | 0.54 | 0.192 | 2 630 | 0.095 | 0.098 | 17.59 | 51.04 |
| 12 (°)/s | 1.29 | 0.713 | 5 190 | 0.199 | 0.222 | 15.43 | 31.14 |
| 22 (°)/s | 6.80 | 2.017 | 10 090 | 1.226 | 0.598 | 18.03 | 29.65 |
| 44 (°)/s | 13.35 | 5.481 | 18 420 | 2.891 | 1.359 | 21.66 | 24.79 |
), ArticleFig(id=1189585660123013888, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1189585009322222590, language=CN, label=表7, caption=
三种伺服机构效率对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | P in/kW | W in/kJ | n m/(r·min-1) | P out/kW | W out/kJ | η m/% | η ave/% |
| 电液伺服机构 |
| 6 (°)/s | 2.17 | 4.083 | — | 0.095 | 0.098 | 4.38 | 2.40 |
| 12 (°)/s | 2.71 | 5.104 | — | 0.199 | 0.222 | 7.34 | 4.35 |
| 22 (°)/s | 3.34 | 3.060 | — | 1.226 | 0.598 | 36.71 | 19.54 |
| 44 (°)/s | 4.51 | 4.131 | — | 2.891 | 1.359 | 64.12 | 32.90 |
| 机电伺服机构 |
| 6 (°)/s | 0.36 | 0.174 | 820 | 0.095 | 0.098 | 26.39 | 56.32 |
| 12 (°)/s | 1.02 | 0.653 | 1 590 | 0.199 | 0.222 | 19.51 | 34.00 |
| 22 (°)/s | 4.35 | 1.715 | 2 405 | 1.226 | 0.598 | 28.18 | 34.87 |
| 44 (°)/s | 8.08 | 4.154 | 4 960 | 2.891 | 1.359 | 35.78 | 32.72 |
| 电静压伺服机构 |
| 6 (°)/s | 0.54 | 0.192 | 2 630 | 0.095 | 0.098 | 17.59 | 51.04 |
| 12 (°)/s | 1.29 | 0.713 | 5 190 | 0.199 | 0.222 | 15.43 | 31.14 |
| 22 (°)/s | 6.80 | 2.017 | 10 090 | 1.226 | 0.598 | 18.03 | 29.65 |
| 44 (°)/s | 13.35 | 5.481 | 18 420 | 2.891 | 1.359 | 21.66 | 24.79 |
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