基于COSMOSWorks的钢制压力容器有限元分析  

Finite element analysis for steel pressure vessel based on COSMOSWorks

作　　者：李文杰[1,2] 曾庆良[1] 于涛[1] 胡昊[1] 殷亮[2] 

机构地区：[1]山东科技大学机电学院,青岛266510 [2]西北核技术研究所,西安710065

出　　处：《机械设计与制造》2011年第5期33-35,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(50875158)

摘　　要：压力容器设计的常规方法是采用薄膜理论和第一强度理论进行设计,以保证压力容器不允许出现塑性变形的前提下确定主要受压元件用材和焊缝系数。由于在设计中未对实际应力进行严格而详细的计算,设计选取的安全系数较大,经济性不好。利用COSMOSWorks软件的有限元分析功能,模拟实例容器加载后的应力、应变、位移情况,揭示出了压力容器承载时的应力分布规律和变形情况,进而对初步设计进行修改和优化,达到节约材料或明确工作能力的潜力的目的,为实现压力容器优化设计的准确性和可靠性提供了一个有效途径。The traditional design of pressure vessel adopted is usually based on the membrane theory and the first strength theory which design purpose is to determine the materials and welding seam coefficient for the main pressure parts by preventing the pressure vessel from plastic deformation.Since the actual stress of the pressure vessel isn＇t calculated strictly in detail,the safety coefficient selected shall be greater and the economical efficiency shall be worse.The COSMOSWorks finite element analysis software is adopted by simulating the stress,strain and displacement of the vessel after loading to show the regularity of the stress distribution and the deformation.And then modification and optimization shall be done to the initial design in order to save material or make clear the capability potential.In the same time an effective way shall be provided to achieve the accuracy and reliability of optimized design for the pressure vessel.

关 键 词：压力容器设计 有限元分析 COSMOSWORKS 

分 类 号：TH16[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]