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The planetary gear system is widely used in aircraft transmission equipment because of its small size, light weight and large load capacity,but the problem of bias load caused by various errors cannot be avoided, and a serious bias load condition will lead to under utilization of the advantages of the planetary system cannot be fully exploited. The influence mechanism of the flexible change of the inner gear ring on the bias load behavior of the system was investigated by taking a certain type of aeronautical planetary gear system as the research object. The deflection,stress and strain of the inner gear ring were measured by experiments with different number of planets and different rim thicknesses, and the mechanism of bias load was analyzed and the degree of influence of the number of planets and rim thickness on the bias load behavior of the system was evaluated. The advanced simulation calculation and analysis of a large aeronautical planetary system was completed by using a hierarchical finite element model to quantify the influence mechanism of the variation of inner gear ring flexibility on the load distribution and gear ring deflection of the system. The accuracy of the simulation results was evaluated by fitting the experimental and simulation results to the same parameter range for comparison. The research results provide targeted structural optimization guidance for the development and design of internal gear rings of large aeronautical planetary gear systems, which can greatly reduce the cost of this type of large aeronautical equipment in the design and iteration process.
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行星齿轮系统因其体积小、质量轻、承载能力大等优点被广泛应用于航空器传动设备中,但由于各种误差造成的偏载问题无法避免,严重的偏载状态将会导致行星系统的优点无法充分发挥。以某型号航空行星齿轮系统为研究对象,探究了内齿圈柔性变化对系统偏载行为的影响机制。通过试验测量了不同的行星数以及不同轮缘厚度下内齿圈挠度、应力及应变,分析了偏载的影响机制并评估了行星数及轮缘厚度对系统偏载行为的影响程度;利用层级有限元模型完成了大型航空行星系统的高级仿真计算和分析任务,量化了内齿圈柔性变化对系统载荷分布以及齿圈偏移的影响机制。将试验与仿真计算结果在相同的参数范围内进行拟合对比,评估了仿真计算结果的准确性。研究结果为大型航空行星齿轮系统内齿圈的开发和设计提供了有针对性的结构优化指导,能够极大降低该类大型航空设备在设计和迭代过程中的成本。
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李铭,男,1986年生,辽宁沈阳人,博士,副教授,硕士研究生导师;主要研究方向为航空齿轮传动装备疲劳强度设计与可靠性分析技术;E-mail:
liming@sau.edu.cn。
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丁硕,女,2001年生,河南郑州人,本科生;主要研究方向为航空齿轮装备可靠性技术;E-mail:dingshuo@stusau.edu.cn。
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丁硕,女,2001年生,河南郑州人,本科生;主要研究方向为航空齿轮装备可靠性技术;E-mail:dingshuo@stusau.edu.cn。
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2021:1-45.(In Chinese), articleTitle=null, refAbstract=null)], funds=[Fund(id=1241038878581248519, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, awardId=LJKZ0196, language=EN, fundingSource=Basic Scientific Research Project of Higher Education Department of Liaoning Province(LJKZ0196), fundOrder=null, country=null), Fund(id=1241038878740632078, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, awardId=LJKZ0196, language=CN, fundingSource=辽宁省教育厅高等学校基本科研项目(LJKZ0196), fundOrder=null, country=null), Fund(id=1241038879004873235, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, awardId=SHSYS202103, language=EN, fundingSource=Open Fund of National Defense Key Discipline Laboratory for Digitization of Aerospace Manufacturing Processes(SHSYS202103), fundOrder=null, country=null), Fund(id=1241038879097147927, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, awardId=SHSYS202103, language=CN, fundingSource=航空制造工艺数字化国防重点学科实验室开放基金项目(SHSYS202103), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241038868233900222, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, xref=1., ext=[AuthorCompanyExt(id=1241038868242288831, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, companyId=1241038868233900222, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.沈阳航空航天大学 国际工程师学院,沈阳 110136)]), AuthorCompany(id=1241038868380700867, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, xref=2., ext=[AuthorCompanyExt(id=1241038868384895172, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, companyId=1241038868380700867, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Influence mechanism of bias load behavior of the planetary gear system, figureFileSmall=UVJUJQmLQRyQH6F8jD4sGw==, figureFileBig=dTZ8OLyN097LKsvMttJwRA==, tableContent=null), ArticleFig(id=1241038872797303107, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图1, caption=
行星齿轮系统偏载行为的影响机制, figureFileSmall=UVJUJQmLQRyQH6F8jD4sGw==, figureFileBig=dTZ8OLyN097LKsvMttJwRA==, tableContent=null), ArticleFig(id=1241038873225122128, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.2, caption=
Deflection state of the planetary gear under equal load conditions, figureFileSmall=+Hw2uIBp4wfct8jkIqIlxA==, figureFileBig=61bFh4zNW6wQd3TyQ65gog==, tableContent=null), ArticleFig(id=1241038873401282902, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图2, caption=
均载状态下行星齿轮偏移状态, figureFileSmall=+Hw2uIBp4wfct8jkIqIlxA==, figureFileBig=61bFh4zNW6wQd3TyQ65gog==, tableContent=null), ArticleFig(id=1241038873506140510, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.3, caption=
Deflection state of the planetary gear under bias load conditions, figureFileSmall=pe4I9a01Mq2EjCbm//VNZA==, figureFileBig=ooTQ+pY3TSKdRAsOAQz1lA==, tableContent=null), ArticleFig(id=1241038873636163938, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图3, caption=
偏载状态下行星齿轮偏移状态, figureFileSmall=pe4I9a01Mq2EjCbm//VNZA==, figureFileBig=ooTQ+pY3TSKdRAsOAQz1lA==, tableContent=null), ArticleFig(id=1241038873996874092, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.4, caption=
Test fixtures of the dynamometer, figureFileSmall=nI9T5+p6+rdyvppf4TKUYA==, figureFileBig=onvZgdkIWW9BXr1jzxPg2A==, tableContent=null), ArticleFig(id=1241038874080760174, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图4, caption=
测功机测试夹具, figureFileSmall=nI9T5+p6+rdyvppf4TKUYA==, figureFileBig=onvZgdkIWW9BXr1jzxPg2A==, tableContent=null), ArticleFig(id=1241038874177229173, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.5, caption=
Solid model of the inner gear ring, figureFileSmall=GAlG5DGxms60BWIrsOHEog==, figureFileBig=C0CQFUkAmdjj4R4D7je32g==, tableContent=null), ArticleFig(id=1241038874412110198, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图5, caption=
内齿圈实体模型, figureFileSmall=GAlG5DGxms60BWIrsOHEog==, figureFileBig=C0CQFUkAmdjj4R4D7je32g==, tableContent=null), ArticleFig(id=1241038874617631100, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.6, caption=
Positions of the root and hoop strain gauges, figureFileSmall=ujElCybMQtXeee/KLlYmpg==, figureFileBig=+xpHGqb6loyIR8vHIgcq4A==, tableContent=null), ArticleFig(id=1241038874730877316, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图6, caption=
根部和环形应变片的位置, figureFileSmall=ujElCybMQtXeee/KLlYmpg==, figureFileBig=+xpHGqb6loyIR8vHIgcq4A==, tableContent=null), ArticleFig(id=1241038874915426698, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.7, caption=
Pasting direction of strain gauges, figureFileSmall=7H9Rw1qLR4vTa2OoTZsaow==, figureFileBig=STvZVATzzXigL6UfYDQ8AQ==, tableContent=null), ArticleFig(id=1241038875003507086, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图7, caption=
应变片粘贴方向, figureFileSmall=7H9Rw1qLR4vTa2OoTZsaow==, figureFileBig=STvZVATzzXigL6UfYDQ8AQ==, tableContent=null), ArticleFig(id=1241038875095781781, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.8, caption=
System-level model of planetary mechanism, figureFileSmall=p7rHCNsFZPZZcbD00wJqsw==, figureFileBig=lAdd9Vptk6aczmSfg3dj8w==, tableContent=null), ArticleFig(id=1241038875418743194, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图8, caption=
行星机构的系统及模型, figureFileSmall=p7rHCNsFZPZZcbD00wJqsw==, figureFileBig=lAdd9Vptk6aczmSfg3dj8w==, tableContent=null), ArticleFig(id=1241038875813007776, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.9, caption=
Measured and predicted radial deviation of the ring gear of a four planetary gear set with a ring gear shaving, figureFileSmall=QvQBibab98RDTXILmXA2aQ==, figureFileBig=dPCwHkUL2dFp7d3dTZYP7A==, tableContent=null), ArticleFig(id=1241038876026917287, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图9, caption=
带花键内齿圈的四行星齿轮组的测量和预测的径向内齿圈偏差, figureFileSmall=QvQBibab98RDTXILmXA2aQ==, figureFileBig=dPCwHkUL2dFp7d3dTZYP7A==, tableContent=null), ArticleFig(id=1241038876228243885, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.10, caption=
Measured and predicted ring gear root strains of a four-planet ary gear set with ring gears, figureFileSmall=nr50REKcTz1Clx6/IrRoNg==, figureFileBig=StWvVeckTo8RbWgT+I7tcg==, tableContent=null), ArticleFig(id=1241038876312129970, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图10, caption=
带内齿圈的四行星齿轮组的测量和预测的环形齿轮根部应变, figureFileSmall=nr50REKcTz1Clx6/IrRoNg==, figureFileBig=StWvVeckTo8RbWgT+I7tcg==, tableContent=null), ArticleFig(id=1241038876425376186, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.11, caption=
Measurement and prediction of deflection and strain in a five planetary gear set, figureFileSmall=Rb4qwk+qphvS68XvQoy0Jw==, figureFileBig=x+YkLzfH5FCXJpYtS0vZuQ==, tableContent=null), ArticleFig(id=1241038876693811647, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图11, caption=
五行星齿轮组挠度和应变的测量和预测, figureFileSmall=Rb4qwk+qphvS68XvQoy0Jw==, figureFileBig=x+YkLzfH5FCXJpYtS0vZuQ==, tableContent=null), ArticleFig(id=1241038876832223685, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.12, caption=
Variation of R-values measured by LVDT for different numbers of planetary gears, figureFileSmall=RtTDNqkcGPOk+Buyatc61Q==, figureFileBig=J0yRbnKrv4IzBWB9fh1Zyw==, tableContent=null), ArticleFig(id=1241038877071299019, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图12, caption=
由LVDT测量的R值在不同行星齿轮数下的变化量, figureFileSmall=RtTDNqkcGPOk+Buyatc61Q==, figureFileBig=J0yRbnKrv4IzBWB9fh1Zyw==, tableContent=null), ArticleFig(id=1241038877163573711, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.13, caption=
Node and displacement nephogram and planetary gear stress distribution nephogram, figureFileSmall=dZLkDnLnCDOKJD7AcP6Hcg==, figureFileBig=08quW85lRvLEh4fjy+XT4A==, tableContent=null), ArticleFig(id=1241038877260042712, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图13, caption=
行星齿轮节点合位移云图与应力分布云图, figureFileSmall=dZLkDnLnCDOKJD7AcP6Hcg==, figureFileBig=08quW85lRvLEh4fjy+XT4A==, tableContent=null), ArticleFig(id=1241038877465563610, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.14, caption=
Load history of target tooth, figureFileSmall=5lWEiuoXyUK6FraDTZvcew==, figureFileBig=6iAsLAw6ZEGDNwJlm822kg==, tableContent=null), ArticleFig(id=1241038877645918689, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图14, caption=
目标齿的载荷历程, figureFileSmall=5lWEiuoXyUK6FraDTZvcew==, figureFileBig=6iAsLAw6ZEGDNwJlm822kg==, tableContent=null), ArticleFig(id=1241038877725610472, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Fig.15, caption=
Bias load analysis of a planetary gear train, figureFileSmall=CU4qWesl/GjjRS/qJpTkfA==, figureFileBig=n/u9b/Y/qBur5/jvt/hfJw==, tableContent=null), ArticleFig(id=1241038877809496557, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=图15, caption=
行星齿轮系偏载分析, figureFileSmall=CU4qWesl/GjjRS/qJpTkfA==, figureFileBig=n/u9b/Y/qBur5/jvt/hfJw==, tableContent=null), ArticleFig(id=1241038877956297203, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Tab.1, caption=
Geometric parameters of the planetary gear train
, figureFileSmall=null, figureFileBig=null, tableContent=
参数 Parameter | 太阳齿轮 Sun gear | 行星齿轮 Planet gear | 环形齿轮 Ring gear |
|---|
| 模数 Module/mm | 5.012 | 5.012 | 5.012 |
| 齿数 Number of teeth | 84 | 56 | 196 |
| 齿轮数量 Number of gear | 1 | 5 | 1 |
| 压力角Pressure angle/(°) | 20 | 20 | 20 |
| 螺旋角度Helix angle/(°) | 0 | 0 | 0 |
有效面宽 Effective width/mm | 120 | 120 | 120 |
基圆直径 Base diameter/mm | 394.671 | 263.114 | 920.899 |
基圈节距 Base pitch/mm | 14.761 | 14.761 | 14.761 |
根角半径 Root angle radius/mm | 2.757 | 2.870 | 2.657 |
轮齿表面硬度 Surface hardness/HRC | 60 | 60 | 60 |
齿芯硬度 Core hardness/HRC | 35 | 35 | 35 |
弹性模量 Modulus of elasticity/MPa | 2.07×106 | 2.07×106 | 2.07×106 |
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行星齿轮系的几何参数
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参数 Parameter | 太阳齿轮 Sun gear | 行星齿轮 Planet gear | 环形齿轮 Ring gear |
|---|
| 模数 Module/mm | 5.012 | 5.012 | 5.012 |
| 齿数 Number of teeth | 84 | 56 | 196 |
| 齿轮数量 Number of gear | 1 | 5 | 1 |
| 压力角Pressure angle/(°) | 20 | 20 | 20 |
| 螺旋角度Helix angle/(°) | 0 | 0 | 0 |
有效面宽 Effective width/mm | 120 | 120 | 120 |
基圆直径 Base diameter/mm | 394.671 | 263.114 | 920.899 |
基圈节距 Base pitch/mm | 14.761 | 14.761 | 14.761 |
根角半径 Root angle radius/mm | 2.757 | 2.870 | 2.657 |
轮齿表面硬度 Surface hardness/HRC | 60 | 60 | 60 |
齿芯硬度 Core hardness/HRC | 35 | 35 | 35 |
弹性模量 Modulus of elasticity/MPa | 2.07×106 | 2.07×106 | 2.07×106 |
), ArticleFig(id=1241038878241509884, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=EN, label=Tab.2, caption=
Load distribution results of planetary gears
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| 均载状态 Uniform load status | 偏载状态 Off-load status |
|---|
载荷分配功率 Load distribution power P/kW | 转矩 Torque T/(N·m) | 载荷分配功率 Load distribution power P/kW | 转矩 Torque T/(N·m) |
|---|
输出轴 Output shaft | 895 | 12 749 | 895 | 12 748.9 |
行星齿轮1 Planetary gear 1 | 179 | 2 549.8 | 180.4 | 2 569.4 |
行星齿轮2 Planetary gear 2 | 179 | 2 549.8 | 179.7 | 2 558.9 |
行星齿轮3 Planetary gear 3 | 179 | 2 549.8 | 177.7 | 2 530.4 |
行星齿轮4 Planetary gear 4 | 179 | 2 549.8 | 178.5 | 2 541.5 |
行星齿轮5 Planetary gear 5 | 179 | 2 549.8 | 179 | 2 548.7 |
), ArticleFig(id=1241038878463808001, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241038860562518046, language=CN, label=表2, caption=
行星齿轮的载荷分配结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 均载状态 Uniform load status | 偏载状态 Off-load status |
|---|
载荷分配功率 Load distribution power P/kW | 转矩 Torque T/(N·m) | 载荷分配功率 Load distribution power P/kW | 转矩 Torque T/(N·m) |
|---|
输出轴 Output shaft | 895 | 12 749 | 895 | 12 748.9 |
行星齿轮1 Planetary gear 1 | 179 | 2 549.8 | 180.4 | 2 569.4 |
行星齿轮2 Planetary gear 2 | 179 | 2 549.8 | 179.7 | 2 558.9 |
行星齿轮3 Planetary gear 3 | 179 | 2 549.8 | 177.7 | 2 530.4 |
行星齿轮4 Planetary gear 4 | 179 | 2 549.8 | 178.5 | 2 541.5 |
行星齿轮5 Planetary gear 5 | 179 | 2 549.8 | 179 | 2 548.7 |
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