轻卡变速箱壳体有限元及试验模态分析  

Finite Element and Experimental Modal Analysis of Light Truck Gearbox Shell

作　　者：张琪[1] 杜文华[1] 马维金[1] 葛玉明 

机构地区：[1]中北大学机械与动力工程学院,山西太原030051 [2]中国重汽集团大同齿轮有限公司,山西大同037000

出　　处：《机械设计与制造》2014年第7期149-151,共3页Machinery Design & Manufacture

摘　　要：变速箱壳体出现破裂,对其进行理论分析。以某轻卡变速箱壳体为研究对象,在ANSYS Workbench12.0软件中建立轻卡变速箱壳体的有限元模型,通过对变速箱壳体进行有限元模态分析得到壳体的固有频率和振型。同时采用锤击法对其进行试验模态分析,获得壳体的模态参数。将有限元及试验模态分析的结果进行对比,验证了有限元仿真分析的正确性和可靠性,得到了变速箱壳体在低阶频率范围内各阶模态的动态特性,为变速箱结构的进一步改进提供了理论依据。It carries on the theoretical analysis on gearbox shell burst.Taking a light truck gearbox shell as the research object, the finite element model of a light truck gearbox shell is established in ANSYS Workbench software, and the Shell, the natural frequency and vibration mode is obtained by the finite element modal analysis. At the same time, using the hammer method to carry out the experimental modal analysis and obtain some modal parameters. Comparing with two results, it is proved that the finite element simulation analysis is correct and feasible, and all kinds of the modal dynamic characteristics on the gearbox shell is obtained in low frequeney ranges. It provides a basis for the further improvement of the structure gearbox.

关 键 词：变速箱壳体 有限元分析 试验模态 

分 类 号：TH16[机械工程—机械制造及自动化]