基于理想点法的液体静压支承系统多目标参数优化设计  

Multi-objective parameter optimization design of hydrostatic supporting system using ideal point method

作　　者：叶红玲[1] 魏旭豪[1] 郑小龙[1] 刘赵淼[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100124

出　　处：《计算力学学报》2011年第B04期117-121,共5页Chinese Journal of Computational Mechanics

基　　金：北京市教委项目(KM200910005005);北京市科委科技发展重点项目(Z08010402880000);科技部科技重大专项(2009zx04002-031)资助

摘　　要：利用多学科优化理论,以液体静压支承系统的结构最大位移最小、单元最大Von Misses应力最小为优化目标,以无量纲的材料弹性模量和油膜刚度作为设计变量,利用响应面方法,将满足结构强度和刚度条件的目标函数进行显式化,建立了以结构综合性能指标为目标的单目标优化模型,通过求解获得了提高系统力学性能的参数条件。本文的研究工作对于增强数控机床工作台的承载能力和性能,满足高精度的加工需求,推动先进制造业的自主创新发展,具有重要的理论意义和应用价值。In this paper, an explict expression of objective function which satisfies with the structural strength and stiffness is formulated by taking advantage of Multi-disciplinary Optimization Theory. Moreover, a Singleobjective optimal model, with the minimum of the maximum displacement of the structure and the minimum of the maximum Von Misses stress of the element as optimization objective, and the dimensionless elastic modulus and oil film stiffness as design variables, is established, which refers to the general performance of structure as objective. In addition, the parameters for the systemic mechanical performance improvement are obtained in consequence of the solution for the optimization model above. Hence, the research in this paper will be of great theoretical signification and practical value to enhance the carrying capacity and performance of the CNC Turntable, satisfy the demand for high-precision machining, promote the independent innovation and development of advanced manufacturing.

关 键 词：液体静压支承系统 理想点法 多目标 参数优化 

分 类 号：O302[理学—力学]