基于DOE的方向盘总成优化分析
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摘要
针对某型号叉车怠速工况下的方向盘振动问题,提出了一种计算机仿真和实验验证相结合的优化方法。首先建立了方向盘总成的模型,应用有限元方法分析其动态特性;在此基础上用DOE方法进行实验设计,评估方向盘系统各部件在低频段内对总成振动的影响,并对相应的参数进行优化。最后将优化的参数应用到实际的方向盘系统中。实验结果表明,该型号叉车方向盘在怠速工况下的振动得到了明显的抑制,动态性能得到了改进。
Focus on the vibration issue under the idling mode in a specific type of forklift,a method that combines with the computer simulation and experiment is proposed to optimize the steering system.Firstly,the steering system is modeled,the Finite Element Method(FEM) is used to achieve the dynamical characteristics,then the Design Of Experiments(DOE) method is used to evaluate the relationships between the components and the vibration of the system under a low frequency range,the parameters are turned to an optimal condition.Finally,the optimization parameters are applied to the forklift,the experiment results indicate that,the vibration of the steering system is suppressed,and the dynamic characteristics are improved obviously.
Focus on the vibration issue under the idling mode in a specific type of forklift,a method that combines with the computer simulation and experiment is proposed to optimize the steering system.Firstly,the steering system is modeled,the Finite Element Method(FEM) is used to achieve the dynamical characteristics,then the Design Of Experiments(DOE) method is used to evaluate the relationships between the components and the vibration of the system under a low frequency range,the parameters are turned to an optimal condition.Finally,the optimization parameters are applied to the forklift,the experiment results indicate that,the vibration of the steering system is suppressed,and the dynamic characteristics are improved obviously.
引文
[1]Directive 2002/44/EC of the european parliament ofthe council[s].
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[3]Park H B.Design of high stiffness steering system foridle vibration[A].KSAE pring Conference[C].97380112,1997.
[4]Ki-Chang Kim,In-ho Choi,Chan-Mook Kim.Astudy on the advanced technology analysis process ofsteering system for Idle performance[J].SAE Paper2007-01-2339.
[5]张波,王玉国,郝兆明.基于有限元技术的汽车方向盘模态分析[J].重型机车,2005,(4):11-12.
[6]郭立群,潘淑华.中重型汽车车架结构强度有限元建模与分析方法研究[J].汽车技术,2008,(6):4-7.
[7]周冠,徐飞云,成艾国,等.基于有限元法和HAM法的转向系统优化[J].中国机械工程,2012,23(13):1633-1637.
[8]Douglas C Montgomery,傅钰生.实验设计与分析[M].北京:人民邮电出版社,2009.
[2]Jinghong Yu,Brain Brickner,Brain Nutwell,et al.A-nalysis of vehicle chassis transmissibility of steeringshimmy and brake judder:mechanism study and virtualdesign of experiment[J].SAE Paper,2007-01-2342.
[3]Park H B.Design of high stiffness steering system foridle vibration[A].KSAE pring Conference[C].97380112,1997.
[4]Ki-Chang Kim,In-ho Choi,Chan-Mook Kim.Astudy on the advanced technology analysis process ofsteering system for Idle performance[J].SAE Paper2007-01-2339.
[5]张波,王玉国,郝兆明.基于有限元技术的汽车方向盘模态分析[J].重型机车,2005,(4):11-12.
[6]郭立群,潘淑华.中重型汽车车架结构强度有限元建模与分析方法研究[J].汽车技术,2008,(6):4-7.
[7]周冠,徐飞云,成艾国,等.基于有限元法和HAM法的转向系统优化[J].中国机械工程,2012,23(13):1633-1637.
[8]Douglas C Montgomery,傅钰生.实验设计与分析[M].北京:人民邮电出版社,2009.