军用运输车车架及底板结构动态特性试验及分析  

Dynamic Characteristics of Experiment and Analysis on Frame and Bottom-board of Military Transport Vehicle

作　　者：胡明枢[1] 郭朝勇[1] 黄海英[1] 欧涛 朱剑[3] 

机构地区：[1]军械工程学院基础部,河北石家庄050003 [2]简氏国际汽车设计有限公司,北京100085 [3]73909部队,江苏徐州221004

出　　处：《军械工程学院学报》2008年第4期33-35,共3页Journal of Ordnance Engineering College

基　　金：军队科研计划项目

摘　　要：采用单点激振多输出（SIMO）试验模态法（EMA）对某型军用运输车车架底板及其连接部分进行动态特性试验，提取相关参数和特征向量，并进行模态参数识别和各阶振型分析，试验结果与实际振动情况基本吻合。与基于有限元分析软件HyperWorks计算结果进行验证对比，结果基本一致。SIMO modal experiment is carried out and the dynamic characteristics of frame, bottom-board and joint parts of certain type of military transport vehicle are analyzed. Modal parameters and modal vectors are extracted from experiment. Then modal parameters are identified and vibration characteristics are analyzed. The results are consonant with the real vibration environment. The test parameters are contrasted against the results calculated by HyperWorks, and they are the same.

关 键 词：动态特性试验 单点激振法 模态参数 HYPERWORKS 

分 类 号：TJ812[兵器科学与技术—武器系统与运用工程] O329[理学—一般力学与力学基础]