基于ANSYS的货柜车动力总成悬置系统隔振性能与优化研究
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摘要
发动机悬置系统设计与优化是改善汽车乘坐舒适性、行驶平顺性以及整车的NVH性能的重要技术措施之一。本文将某微型货柜车动力总成悬置系统简化为惯性体—弹性体等效模型,利用ANSYS APDL语言对其进行模态和瞬态动力学分析。并以隔振率为目标函数进行隔振优化。为汽车发动机悬置系统的隔振优化设计提供了参考。
The research focused on a certain type of miniature container truck, using the ANSYS finite element software to make the equivalent model and do modal analysis of its powertrain mounting system as well as the whole truck. Based on the theory of vibration isolation and excited vibration, an optimization mathematical model is built consulting the stiffness of suspension element as design variable and the vibration isolation rate as objective function. With the help of related optimization module in ANSYS, a result indicating a much better performance in vibration isolation rate is gained.
The research focused on a certain type of miniature container truck, using the ANSYS finite element software to make the equivalent model and do modal analysis of its powertrain mounting system as well as the whole truck. Based on the theory of vibration isolation and excited vibration, an optimization mathematical model is built consulting the stiffness of suspension element as design variable and the vibration isolation rate as objective function. With the help of related optimization module in ANSYS, a result indicating a much better performance in vibration isolation rate is gained.
引文
[1]张玉增,柴山,刚宪约.发动机悬置系统的研究综述[J].农业装备与车辆工程,2012,2012(1):23-27.
[2]Desai U.B,Debajyoti P,Kirkpatrick R.D:A realization approach to stochastic model reduction[J].Int.J.Control,1985,42(4):821-838.
[3]陈树勋,尹国保,黄锦成等.基于等效分析模型的发动机悬置系统优化设计[J].工程力学,2013,30(11):221-226.
[4]杨金元.动力总成悬置系统的模态减振分析与优化设计[D].南宁:广西大学,2013.
[5]谢贻权,何福保.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1978.
[6]薛风先.ANSYS12.0机械与结构有限元分析从入门到精通[M].北京:机械工业出版社,2010.
[7]吴飞,胡朝辉.成艾国等.综合考虑解耦率和隔振率的发动机悬置系统多目标优化[J].汽车工程,2013,35(1).
[2]Desai U.B,Debajyoti P,Kirkpatrick R.D:A realization approach to stochastic model reduction[J].Int.J.Control,1985,42(4):821-838.
[3]陈树勋,尹国保,黄锦成等.基于等效分析模型的发动机悬置系统优化设计[J].工程力学,2013,30(11):221-226.
[4]杨金元.动力总成悬置系统的模态减振分析与优化设计[D].南宁:广西大学,2013.
[5]谢贻权,何福保.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1978.
[6]薛风先.ANSYS12.0机械与结构有限元分析从入门到精通[M].北京:机械工业出版社,2010.
[7]吴飞,胡朝辉.成艾国等.综合考虑解耦率和隔振率的发动机悬置系统多目标优化[J].汽车工程,2013,35(1).