某拖拉机驾驶室结构模态和声腔模态分析  

Analysis of Structural Modes and Acoustic Modes for a Tractor Cab

作　　者：刘钊宾[1] 蔡登辉 赵海峰[1] 刘世谦[1] 李俊龙 LIU Zhaobin;CAI Denghui;ZHAO Haifeng;LIU Shiqian;LI Junlong(State Key Laboratory of Power System of Tractor,Luoyang Tractor Research Institute Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]拖拉机动力系统国家重点实验室,洛阳拖拉机研究所有限公司,河南洛阳471039

出　　处：《拖拉机与农用运输车》2022年第4期46-50,共5页Tractor & Farm Transporter

摘　　要：拖拉机驾驶室的结构和布置形式直接影响其NVH(Noise、Vibration、Harshness)性能,在拖拉机驾驶室板件结构设计时,应避免板件结构的局部模态与驾驶室声腔模态耦合。以某型号拖拉机驾驶室为例,使用有限元法求解该驾驶室的结构模态和声腔模态,对该驾驶室的结构特性进行评价,为驾驶室的结构设计提供参考。Structural design of the cab determines the NVH performance of a tractor,the local mode of cab panel structure should avoid coupling with cab acoustic cavity mode.This paper takes a cab of a tractor as the research object,the structural modes and acoustic cavity modes of the cab are solved by finite element method,and the structural characteristics of the cab are evaluated to provide reference for the structural design of the cab.

关 键 词：驾驶室 有限元法 结构模态 声腔模态 

分 类 号：TB53[理学—物理]