基于Ansys的管路支架的模态分析  

Modal Analysis of Piping Support Based on Ansys

作　　者：王永胜[1] 张京伟[1] 吴崇健[1] 吴声敏[1] 

机构地区：[1]中国舰船研究设计中心,武汉430064

出　　处：《船海工程》2013年第1期32-35,40,共5页Ship & Ocean Engineering

摘　　要：利用Ansys软件对船舶中两种常见的管路支架进行模态分析,讨论接触的处理方式、有无螺栓、预紧力的大小、橡胶圈的层数(厚度)和橡胶垫的类型等因素对两种管路支架固有频率的影响。结果表明,橡胶圈的层数(厚度)是影响管路支架固有频率的主要因素,而含预应力的模态计算是研究这种装配体结构固有性质的一种比较合理的处理方法。Modal analysis was conducted on two kinds of widespread piping supports in the ship. The influence factors such as way of deal with contact, simplify the bolt or not, the size of preload, quantity of rubber rings and shape of the rubber ring on the natural frequency of piping supports were discussed. The conclusion indicates that quantity of rubber rings is the key factor and modal analysis under pre-stress is a reasonable research approach to obtain the inherent characteristics of this kind of assembled structure.

关 键 词：管路支架 模态分析 ANSYS 预应力 非线性 

分 类 号：U664.84[交通运输工程—船舶及航道工程]