两款白车身试验模态分析与比较

为提高某新型卡车白车身振动特性，改善车身的耐久性与舒适性，通过具体模态试验，获得并分析了该轻卡白车身模态试验数据。根据与该车型相匹配的部件振动参数，并参考相同平台的某型客车振动参数，提出了该新型卡车白车身改进方案。同时介绍了模态试验系统的组成和流程，探讨了试验测系统、模态数据可靠性检验的一般方法。

Modal analyais and comparasion of two models of white body experiment

In order to improve the vibration characteristic of white body of specific new model truck,improve body durability and comfort,through detail modal experiment,obtain and analyse the body modal experiment data of this list truck,put forward the the white body improvement scheme of this new model truck according to parts vibration paramenter which matches with this mode,refer to specific bus vibration parameter in the same platform.Meanwhile introduce the composition and process of model experiment system,discuss the general method of reliability inspection for experiment test system,modal data.