柴油机体结构有限元模态分析和模态测试  

Finite Element Modal Analysis and Modal Test of A Diesel Engine Block

作　　者：梁艳成 程泊静 黄锦成[1] 陈树勋[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《装备制造技术》2014年第5期1-3,共3页Equipment Manufacturing Technology

摘　　要：为了解决某科研项目问题,需要利用有限元分析软件ANSYS对某柴油发动机机体结构建立有限元模型,并进行自由模态分析计算,从而得到该机体结构的低阶振动模态频率与模态振型。在得到有限元模型后需要对该机体结构进行模态试验测试加以对比验证。通过有限元模态分析与模态测试结果的对比,验证了有限元模态分析模型与结果的合理性,为该类型发动机机体结构设计与优化提供了参考依据。In order to solve the problem of a scientific research project, need to establish the finite element model of the body structure of a diesel engine using the ANSYS finite element analysis software, and calculating the free mode, so as to get the body structure of the low order modal frequency and modal shape. The finite element model is needed after the modal test on the structural comparison. By comparing the finite element modal analysis and test results, verify the rationality analysis model and the results of finite element mode, provide the reference for the design and optimization of this type of engine body structure.

关 键 词：柴油机 机体结构 模态分析 模态测试 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]