螺栓预紧力对大型双排四点接触球轴承载荷分布的影响
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摘要
通过采用超单元法模拟滚珠-滚道接触,用等效梁法模拟螺栓,得到大型双排四点接触球轴承有限元简化模型,再与不加螺栓有限元算法以及理论算法对比,验证该模型的正确性,并利用此方法分析螺栓预紧力对轴承载荷分布的影响。研究表明:随着均布螺栓预紧力的增加,滚珠-滚道最大接触载荷先降低后小幅增加;非均布螺栓预紧力使滚珠-滚道接触载荷波动加剧;内、外圈螺栓预紧力差异使上、下排滚珠-滚道接触载荷差异增大。
The superelement method was used to simulate the contact between rolling ball and raceways,and theequivalent beam method was used to model the bolt. The simplified finite element model of large type double row fourpoint contact ball bearing was obtained,and the correctness of the model was verified through comparing with the nonbolt finite element method and theoretical formula. The influence of the bolt pretension on the load distribution ofbearings was analyzed by the model. The research results show that with the increase in the even bolt pretension,themaximum contact load of rolling ball-raceway decreases firstly and then increases slightly. The uneven bolt pretensioncauses the exacerbated fluctuations of the rolling ball-raceway contact load. The bolt pretension difference between innerand outer ring causes the increase of the contact load difference between double rows.
The superelement method was used to simulate the contact between rolling ball and raceways,and theequivalent beam method was used to model the bolt. The simplified finite element model of large type double row fourpoint contact ball bearing was obtained,and the correctness of the model was verified through comparing with the nonbolt finite element method and theoretical formula. The influence of the bolt pretension on the load distribution ofbearings was analyzed by the model. The research results show that with the increase in the even bolt pretension,themaximum contact load of rolling ball-raceway decreases firstly and then increases slightly. The uneven bolt pretensioncauses the exacerbated fluctuations of the rolling ball-raceway contact load. The bolt pretension difference between innerand outer ring causes the increase of the contact load difference between double rows.
引文
[1]陈龙,杜宏武,武建柯,等.风力发电机用轴承简述[J].轴承,2008,(12):45—50.[1]Chen Long,Du Hongwu,Wu Jianke,et al.Summary of the bearing used in wind turbines[J].Bearing,2008,(12):45—50.
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[3]Kania Luclwik.Modeling of rollers in calculation of slewing bearing with the use of finite elements[J].Mechanism and Machine Theory,2006,41(11):1359—1376.
[4]江术新.MW级风电机组变桨系统动力学及结构仿真分析[D].重庆:重庆大学,2014.[4]Jiang Shuxin.Structural and dynamics analysis on the pitch system of MW grade wind turbine[D].Chongqing:Chongqing University,2014.
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[8]王永全,王华,高学海,等.螺栓预紧力对转盘轴承载荷分布的影响[J].轴承,2013,(12):13—16.[8]Wang Yongquan,Wang Hua,Gao Xuehai,et al.Influence of bolt pretension on load distribution for slewing bearing[J].Bearing,2013,(12):13—16.
[9]Kania L,Krynke M,Mazanek E.A catalogue capacity of slewing bearings[J].Mechanism and Machine Theory,2012,58:29—45.
[10]Chen Guanci,Wen Jianmin.Load performance of largescale rolling bearings with supporting structure in wind turbines[J].Journal of Tribology-Transaction of The ASME,2012,134(4):041105.
[11]龚国伟.风电机组法兰螺栓连接建模与仿真技术研究[D].重庆:重庆大学,2014.[11]Gong Guowei.Modeling and simulink research about the flange bolts connection of wind turbine[D].Chongqing:Chongqing University,2014.
[12]王燕霜,袁倩倩.负游隙对特大型双排四点接触球轴承载荷分布的影响[J].机械工程学报,2012,48(21):110—115.[12]Wang Yanshuang,Yuan Qianqian.Research on static load-carrying capacity of large size double row four-point contact ball bearings[J].Journal of Mechanical Design,2012,48(21):110—115.
[13]邓四二,贾群义,王燕霜.滚动轴承设计原理[M].北京:中国标准出版社,2009.[13]Deng Sier,Jia Qunyi,Wang Yanshuang.Rolling bearing design theory[M].Beijing:China Standard Press,2009.
[14]Harris T,Rumbarger J H.Wind turbine design guideline DG03:Yaw&pitch rolling bearing life[R].National Renewable Energy Laboratory,2010.
[2]Daidie Alain,Chaib Zouhair,Ghosn Antione.3D simplified finite elements analysis of load and contact angle in a slewing ball bearing[J].Journal of Mechanical Design,2008,130(8):1—8.
[3]Kania Luclwik.Modeling of rollers in calculation of slewing bearing with the use of finite elements[J].Mechanism and Machine Theory,2006,41(11):1359—1376.
[4]江术新.MW级风电机组变桨系统动力学及结构仿真分析[D].重庆:重庆大学,2014.[4]Jiang Shuxin.Structural and dynamics analysis on the pitch system of MW grade wind turbine[D].Chongqing:Chongqing University,2014.
[5]Olave M,Sagartzazu X,Damian J,et al.Design of four contact-point slewing bearing with a new load distribution procedure to account for structural stiffness[J].Journal of Mechanical Design,2010,132(2):021006.
[6]Germanischer Loyd,Hamburg.Guideline for the certification of wind turbines[S].
[7]罗继伟,马伟(译).滚动轴承分析:第一卷轴承技术的基本概念[M].北京:机械工业出版社,2009.[7]Luo Jiwei,Ma Wei.Rolling bearing analysis,essential concepts of bearing technology[M].Beijing:Press of Mechanical Industry,2009.
[8]王永全,王华,高学海,等.螺栓预紧力对转盘轴承载荷分布的影响[J].轴承,2013,(12):13—16.[8]Wang Yongquan,Wang Hua,Gao Xuehai,et al.Influence of bolt pretension on load distribution for slewing bearing[J].Bearing,2013,(12):13—16.
[9]Kania L,Krynke M,Mazanek E.A catalogue capacity of slewing bearings[J].Mechanism and Machine Theory,2012,58:29—45.
[10]Chen Guanci,Wen Jianmin.Load performance of largescale rolling bearings with supporting structure in wind turbines[J].Journal of Tribology-Transaction of The ASME,2012,134(4):041105.
[11]龚国伟.风电机组法兰螺栓连接建模与仿真技术研究[D].重庆:重庆大学,2014.[11]Gong Guowei.Modeling and simulink research about the flange bolts connection of wind turbine[D].Chongqing:Chongqing University,2014.
[12]王燕霜,袁倩倩.负游隙对特大型双排四点接触球轴承载荷分布的影响[J].机械工程学报,2012,48(21):110—115.[12]Wang Yanshuang,Yuan Qianqian.Research on static load-carrying capacity of large size double row four-point contact ball bearings[J].Journal of Mechanical Design,2012,48(21):110—115.
[13]邓四二,贾群义,王燕霜.滚动轴承设计原理[M].北京:中国标准出版社,2009.[13]Deng Sier,Jia Qunyi,Wang Yanshuang.Rolling bearing design theory[M].Beijing:China Standard Press,2009.
[14]Harris T,Rumbarger J H.Wind turbine design guideline DG03:Yaw&pitch rolling bearing life[R].National Renewable Energy Laboratory,2010.