半挂自卸车厢振动特性  

Semi-trailer dumper skip vibration characteristic

作　　者：武瑞峰[1] 

机构地区：[1]北京信息职业技术学院机电工程系,北京100015

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第5期684-687,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省教育厅科研基金资助项目(2007308003)

摘　　要：为了利用Pore建立半挂自卸车厢进行了三维模型,将其导入到ANSYS中,对车厢整体进行了模态分析,采用Block Lanczos法进行模态提取,得到车厢前六阶模态振型,并以碎石路面等作为随机激励,研究了车厢的振动特性.分析结果表明:该车厢的整体固有频率值不是很高,说明该车架动刚度较小,研究结果可为车厢结构的设计改进提出指导性建议.This paper established the three-dimensional model of semi-trailer dumper skip by using Pro/E software, and imported it into the ANSYS, and analyzed the semi-trailer dumper skip mode. Modal extraction was made by using the method of Block Lanczos and obtained the top sixth order modal shape. Taking the gravel roads as a random excitation, this paper studied the vibration characteristic of cargo body. The result of study shows that natural frequency of the semi-trailer dumper skip is not very high, which explains that the dynamic stiffness of the frame is relatively small. The study provides instructional suggestions to improve the design of a cargo body.

关 键 词：半挂自卸车厢 模态分析 随机激励 振动特性 虚拟仿真 应力分布 非线性接触 ANSYS 

分 类 号：U169[交通运输工程]