Article(id=1223193063107973535, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220420, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1646582400000, receivedDateStr=2022-03-07, revisedDate=1650384000000, revisedDateStr=2022-04-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561552073, onlineDateStr=2026-01-28, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561552073, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561552073, creator=13701087609, updateTime=1769561552073, updator=13701087609, issue=Issue{id=1223193053830169317, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='1', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769561549861, creator=13701087609, updateTime=1769567790701, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219229885857794, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219229885857795, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=181, endPage=185, ext={EN=ArticleExt(id=1223193064349487542, articleId=1223193063107973535, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Structural Strength and Modal Analysis of Large Hydraulic Radial Gates in Service, columnId=1222925284869922957, journalTitle=Water Resources and Power, columnName=ELECTROMECHANICS AND CONTROL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

To ensure the safe and stable operation of large radial gate in service, taking the hydraulic radial gate of Gezhouba Project as an example, the finite element analysis software was used to analyze the static strength and modal to obtain the maximum stress concentration point and deformation of the gate under the design head condition. The vibration intensity of the gate was judged according to the natural frequency, vibration model and maximum deformation displacement. The results show that the deviation between the total design water pressure of the gate and the theoretical calculation is 4.7%, which is located in the 5% error control range. The overall maximum stress of the radial gate is 373.86 MPa and the deformation is 12.938 mm, meeting the design requirements of the specification. The bottom of the panel exists local stress concentration, the overall vibration deformation of the gate is less than 0.508 mm, and the vibration intensity is small. Only low-order frequencies appear in the high-energy region of the pulsating pressure of the water flow, and the possibility of resonance is small.

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为保证在役大型弧形闸门安全稳定运行,以葛洲坝工程水工弧形闸门为例,利用有限元分析软件,按设计水头对其进行静力学强度和模态分析,得出闸门最大应力集中点及变形情况,并根据自振频率、振型和最大变形位移判断闸门振动强弱。结果表明,闸门设计总水压力与理论计算偏差为4.7%,在5.0%误差控制范围内,弧形闸门整体最大应力为373.86 MPa、变形为12.938 mm,强度和刚度均能满足现行规范设计要求,面板底部存在局部应力集中,闸门整体振动变形量小于0.508 mm,振动强度不大,只有低阶频率出现在水流脉动压力的高能区,其发生共振的可能性小。

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陈保家(1977-),男,教授,研究方向为机械装备状态监测、故障诊断及可靠性评估与寿命预测,E-mail:
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胡耀楹(1998-),男,硕士研究生,研究方向为在线监测和可靠性评估,E-mail:

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胡耀楹(1998-),男,硕士研究生,研究方向为在线监测和可靠性评估,E-mail:

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胡耀楹(1998-),男,硕士研究生,研究方向为在线监测和可靠性评估,E-mail:

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在役大型水工弧形闸门结构静强度与模态分析
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胡耀楹 1 , 陈保家 1, 2 , 陈法法 1, 2 , 肖文荣 1 , 肖能齐 1 , 刘强 1
水电能源科学 | 机电与控制工程 2023,41(1): 181-185
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水电能源科学 | 机电与控制工程 2023, 41(1): 181-185
在役大型水工弧形闸门结构静强度与模态分析
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胡耀楹1 , 陈保家1, 2 , 陈法法1, 2, 肖文荣1, 肖能齐1, 刘强1
作者信息
  • 1.三峡大学水电机械设备设计与维护湖北省重点实验室,湖北 宜昌 443002
  • 2.重庆大学机械传动国家重点实验室,重庆 400030
  • 胡耀楹(1998-),男,硕士研究生,研究方向为在线监测和可靠性评估,E-mail:

通讯作者:

陈保家(1977-),男,教授,研究方向为机械装备状态监测、故障诊断及可靠性评估与寿命预测,E-mail:
Structural Strength and Modal Analysis of Large Hydraulic Radial Gates in Service
Yao-ying HU1 , Bao-jia CHEN1, 2 , Fa-fa CHEN1, 2, Wen-rong XIAO1, Neng-qi XIAO1, Qiang LIU1
Affiliations
  • 1.Hubei Key Laboratory of Construction and Hydropower Engineering, China Three Gorges University, Yichang 443002, China
  • 2.The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China
出版时间: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220420
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为保证在役大型弧形闸门安全稳定运行,以葛洲坝工程水工弧形闸门为例,利用有限元分析软件,按设计水头对其进行静力学强度和模态分析,得出闸门最大应力集中点及变形情况,并根据自振频率、振型和最大变形位移判断闸门振动强弱。结果表明,闸门设计总水压力与理论计算偏差为4.7%,在5.0%误差控制范围内,弧形闸门整体最大应力为373.86 MPa、变形为12.938 mm,强度和刚度均能满足现行规范设计要求,面板底部存在局部应力集中,闸门整体振动变形量小于0.508 mm,振动强度不大,只有低阶频率出现在水流脉动压力的高能区,其发生共振的可能性小。

弧形闸门  /  静力学分析  /  模态分析  /  振动强弱

To ensure the safe and stable operation of large radial gate in service, taking the hydraulic radial gate of Gezhouba Project as an example, the finite element analysis software was used to analyze the static strength and modal to obtain the maximum stress concentration point and deformation of the gate under the design head condition. The vibration intensity of the gate was judged according to the natural frequency, vibration model and maximum deformation displacement. The results show that the deviation between the total design water pressure of the gate and the theoretical calculation is 4.7%, which is located in the 5% error control range. The overall maximum stress of the radial gate is 373.86 MPa and the deformation is 12.938 mm, meeting the design requirements of the specification. The bottom of the panel exists local stress concentration, the overall vibration deformation of the gate is less than 0.508 mm, and the vibration intensity is small. Only low-order frequencies appear in the high-energy region of the pulsating pressure of the water flow, and the possibility of resonance is small.

radial gate  /  static analysis  /  modal analysis  /  vibration strength
胡耀楹, 陈保家, 陈法法, 肖文荣, 肖能齐, 刘强. 在役大型水工弧形闸门结构静强度与模态分析. 水电能源科学, 2023 , 41 (1) : 181 -185 . DOI: 10.20040/j.cnki.1000-7709.2023.20220420
Yao-ying HU, Bao-jia CHEN, Fa-fa CHEN, Wen-rong XIAO, Neng-qi XIAO, Qiang LIU. Structural Strength and Modal Analysis of Large Hydraulic Radial Gates in Service[J]. Water Resources and Power, 2023 , 41 (1) : 181 -185 . DOI: 10.20040/j.cnki.1000-7709.2023.20220420
  • 国家自然科学基金项目(51975324)
  • 机械传动国家重点实验室开放基金项目(SKLMT-MSKFKT-202020)
  • 湖北省重点实验室开放基金项目(2020KJX02; 2021KJX02; 2021KJX13)
  • 武汉科技大学冶金装备及其控制教育部重点实验室开放基金项目(MECOMF2021B04)
2023年第41卷第1期
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doi: 10.20040/j.cnki.1000-7709.2023.20220420
  • 接收时间:2022-03-07
  • 首发时间:2026-01-28
  • 出版时间:2023-01-25
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  • 收稿日期:2022-03-07
  • 修回日期:2022-04-20
基金
国家自然科学基金项目(51975324)
机械传动国家重点实验室开放基金项目(SKLMT-MSKFKT-202020)
湖北省重点实验室开放基金项目(2020KJX02; 2021KJX02; 2021KJX13)
武汉科技大学冶金装备及其控制教育部重点实验室开放基金项目(MECOMF2021B04)
作者信息
    1.三峡大学水电机械设备设计与维护湖北省重点实验室,湖北 宜昌 443002
    2.重庆大学机械传动国家重点实验室,重庆 400030

通讯作者:

陈保家(1977-),男,教授,研究方向为机械装备状态监测、故障诊断及可靠性评估与寿命预测,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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