TY型工程自卸车车架动态特性的设计分析  

The TY Dump Truck Design and Analysis of Frame Dynamic Characteristics

作　　者：褚玉锋 王铁[1] 刘伦伦[1] 张瑞亮[1] 

机构地区：[1]太原理工大学车辆工程系,山西太原030024

出　　处：《机械设计与制造》2014年第3期27-29,共3页Machinery Design & Manufacture

基　　金：山西省高新技术项目资助(2011-2368);山西省研究生优秀创新项目资助(2012-3025)

摘　　要：对轻量化低重心的新型车架结构进行了动态分析。在原车架模态试验的基础上,建立原车架三维模型与有限元模型,得到了有限元模态分析结果,比对了原车架有限元模态计算结果与模态试验结果,验证了有限元建模方式的有效性。用相同的建模方式对新车架进行建模,通过对比原车架与新车架的模态特性并结合发动机和路面激励,对新车架的动态性能进行了评价。分析表明新车架的动态特性要优于原车架结构,验证了新设计方案的可信性,为新车架的试制与设计改进提供了参考和依据。The dynamic analysis of a new frame structure based on weight reduction and lowering the center of gravity was carried ouL The original frame modal analysis was compared with the results of the finite element modal and modal test to verify the effectiveness of the finite element modeling approach after the three dimensional modeling and the finite element modeling based on the modal test.Then it carried on the same method to establish a new frame finite element model and by contrasting modal characteristics of the original frame and the new frame and combining engine and road excitation to evaluate the dynamic pe（ormance of the new frame.The analysis shows that the dynamic characteristics of the new frame is better than the original frame structure,which verifies the credibility of the improved design and provides reference and basis for the trial design and improvements of the new frame.

关 键 词：车架 有限元 模态 结构改进 

分 类 号：TH16[机械工程—机械制造及自动化] U272.64[机械工程—车辆工程]