汽车座椅骨架的数值模态分析与验证  

Numerical Modal Analysis and Verification of Automobile Seat Frame

作　　者：杨文彪[1] 马迅[1] 张继伟[1] 张之江[1] Yang Wenbiao;Ma Xun;Zhang Jiwei;Zhang Zhijiang(School of Automotive Engineering, Hubei University of Automotive Technology, Shiyan 442002, China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2016年第4期5-8,23,共5页Journal of Hubei University Of Automotive Technology

基　　金：湖北省重点实验室开放基金项目(ZDK1201307)

摘　　要：基于有限元软件Hyperworks建立某汽车座椅骨架的有限元模型,对其进行自由模态分析,得到骨架的固有频率及模态振型。通过模态试验验证了有限元模型的可靠性,研究了蛇形弹簧的模拟方式,发现蛇形弹簧的预紧力对座椅蛇形弹簧部分振动影响较大,为汽车座椅有限元模型的后续分析提供了仿真方法和理论依据。The finite element model of a car seat frame was established by the Finite element software HyperWorks. Then, the seat frame was analyzed through the free modal, the natural frequencies and the modal shapes were obtained. The reliability of the finite element model was validated by the modal test and the simulation of the serpentine spring was researched. It is found the effect of the serpentine spring preload on the seat serpentine spring vibration type is large. It provides the simulation method and the theoretical basis for the subsequent analysis of the finite element model of the car seat.

关 键 词：汽车座椅 预紧力 蛇形弹簧 模态分析 固有频率 

分 类 号：U463.836[机械工程—车辆工程]