大马力拖拉机后桥壳有限元分析
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摘要
为了研究后桥壳的可靠性,对后桥壳进行了有限元分析。通过模态分析与模态实验,分析了后桥壳的动态性能并验证了其有限元模型的正确性;通过静力学分析,校核了其强度、刚度。对后桥进行了拓扑优化并根据优化结果进行了改进,改进后后桥壳和半轴套在满足强度、刚度的条件下分别减轻了12. 33%和10.3%,从而提高了材料的利用率,实现了对拖拉机后桥壳轻量化的目的。
In order to study the reliability of rear axle housing,the finite element analysis of rear axle housing is carried out. Modal analysis and modal experiment are carried out to analyze the dynamic performance of the rear axle housing and to veify the correctness of the finite element model. The static analysis of the rear axle housing is carried out to check its strength and stiffness. Topology optimization of the rear axle is carried out and improvement is made according to the optimization results. The weights rear axle housing and the half axle sleeve are reduced by 12. 33% and 10. 3% respectively under the condition of satisfying the strength and stiffness,which improved the utilization ratio of the material. The purpose of lightening the rear axle housing of the tractor is thus realized.
In order to study the reliability of rear axle housing,the finite element analysis of rear axle housing is carried out. Modal analysis and modal experiment are carried out to analyze the dynamic performance of the rear axle housing and to veify the correctness of the finite element model. The static analysis of the rear axle housing is carried out to check its strength and stiffness. Topology optimization of the rear axle is carried out and improvement is made according to the optimization results. The weights rear axle housing and the half axle sleeve are reduced by 12. 33% and 10. 3% respectively under the condition of satisfying the strength and stiffness,which improved the utilization ratio of the material. The purpose of lightening the rear axle housing of the tractor is thus realized.
引文
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[5]张洪欣.汽车设计[M].4版.北京:机械工业出版社,2011.
[6]高娟.汽车变速箱体结构强度分析与优化设计[D].长春:吉林大学,2011.
[2]刘磊,马爱军,刘洪英,等.基于Hyper Mesh的某航天产品结构螺栓连接处理方法研究[J].航天医学与医学工程,2015,28(6):441-444.
[3]张成波. 1141重型货车驱动桥桥壳轻量化研究[D].武汉:武汉理工大学,2010.
[4]CAKIR M C,SIK Y I. Finite element analysis of cutting tools prior to feature in hard turning operations[J]. Materials and Design,2005,26(2):105-112.
[5]张洪欣.汽车设计[M].4版.北京:机械工业出版社,2011.
[6]高娟.汽车变速箱体结构强度分析与优化设计[D].长春:吉林大学,2011.