摘要
以SW4型船用起重机吊臂为原型,创新地将"贡献率"这一概念与有限元法同时引入设计过程中,研究各参数对吊臂性能的影响。利用ANSYS Workbench进行模拟实验,通过数据分析得出各个参数与性能之间的数学关系,运用MATLAB作出曲线拟合方程,从而计算出各个主要截面参数对结构性能影响的贡献率。最后通过贡献率的计算结果对参数进行优化,使得吊臂在满足安全性条件下达到最优。有效地减小了优化设计过程中对经验数据与设计人员的过度依赖。证明了贡献率在优化设计中有一定的参考性。
In this paper, SW4 type marine crane boom, for example, innovatively, the concept of contribution rate and FEM are used in to the optimization for studies of various parameters on the performance of the crane influence. Make use of ANSYS Workbench simulation, analysis obtained mathematical relationship between various parameters and performance through data, make curve fitting equation to distinguish between the various main section parameters (such as height, width, thickness, etc. ) on the structural performance (weight, the maximum stress, maximum interference, etc. ) affect the contribution rate. For the design and improvement of the secondary boom and product development provides an important theoretical basis.
出处
《机械设计与研究》
CSCD
北大核心
2016年第1期118-121,125,共5页
Machine Design And Research
基金
上海市2014年联盟计划资助项目(LM201403)
关键词
贡献率
吊臂
有限元分析
优化设计
the contribution rate
crane
finlte element analysis
optimization design