重负荷往复摩擦试验机结构动态特性分析  

Dynamic Characteristic Analysis of Heavy-Duty Reciprocating Friction Tester

作　　者：俞建卫[1] 潘俊锋[1] 尤涛[1] 焦明华[1] 

机构地区：[1]合肥工业大学摩擦学研究所,安徽合肥230009

出　　处：《机械设计与制造》2014年第11期155-157,160,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金(102-413167)

摘　　要：重负荷往复摩擦试验机主要用于检验往复直线运动条件下材料的摩擦磨损性能,其是否具有足够的强度、刚度和良好的动态特性,将决定试验机运行的可靠性和安全性。基于ANSYS workbench软件平台,对试验机主要结构装配体进行了模态分析和谐响应分析研究。研究表明试验机的振动主要以弯曲振动为主;通过谐响应分析研究了试验机各部分在简谐载荷作用下的振动特性,预测了试验机结构设计的薄弱环节。分析结果为试验机的使用频率范围和结构优化提供了理论依据。Heavy-duty reciprocating friction tester is mainly used for friction and wear properties testing under linear motion , such as sufficient strength, rigidity and good dynamic characteristics, which determine the reliability and safety of tester. As the key structure assembly of tester, modal analysis and harmonic response analysis are conducted based on ANSYS workbench. Study has shown that the vibration is mainly oriented to bending vibration. The harmonic response analysis obtains the vibration characteristics, of each part of the tester under loads. Prediction of the weak link of the structure is achieved. The results provide a theoretical basis for the frequency range and structural optimization.

关 键 词：摩擦试验机 固有频率 模态分析 谐响应分析 

分 类 号：TH16[机械工程—机械制造及自动化]