基于参数化建模的悬臂结构优化设计
徐鹏杰，张凤生*，刘延杰，任锦霞
（青岛大学 机电工程学院，山东 青岛 266071）
摘要：参数化设计方法中初始参数通常是凭借设计经验或参考以往的设计，之后对模型进行仿真分析，确定其是否满足设计要求。针对方法中存在的主观性和设计效率问题，给出一种快速获取最优建模参数的方法。首先将机械结构的参数化尺寸定义为变量，根据结构的设计要求建立目标函数。然后利用MATLAB求解目标函数的最优解，该最优解就是参数化尺寸的最优值，从而实现机械结构的优化设计。文中通过一设计实例，介绍了该方法的设计思路与设计过程，验证了其可行性和有效性。
关键词：悬臂结构；参数化建模；目标函数；MATLAB
中图分类号：TH122 文献标志码：A doi：10.3969/j.issn.1006-0316.2018.02.013
文章编号：1006－0316 (2018) 02－0049－05
Optimization Design of a Cantilever Structure Based on Parametric Modeling
XU Pengjie，ZHANG Fengsheng，LIU Yanjie，REN Jinxia
( College of Mechanical & Electrical Engineering, Qingdao University, Qingdao 266071, China )
Abstract：The initial parameters of parametric modeling method are usually determined by means of experience or by reference to previous designs, and then the model is simulated and analyzed to determine whether it meets the design requirements. Due to the problems of subjectivity and efficiency in the method, this paper presents a method to quickly obtain optimal modeling parameters. The parameterized dimensions of the mechanical structure are firstly defined as variables, an objective function is established according to design requirements. And then the optimal solution of the objective function is solved by MATLAB, which is the optimal value of the parameterized dimensions, and thus to realize the optimal design of mechanical structure. Combined with an design example, the paper introduces the design idea and design process of the method, and verifies its feasibility and effectiveness.
Key words：cantilever structure；parametric modeling；objective function；MATLAB
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收稿日期：2017－06－30
作者简介：徐鹏杰（1992－），男，山东滨州人，硕士研究生，主要研究方向为机械电子工程。*通讯作者：张凤生（1962－），男，山东青岛人，博士，教授、硕士研究生导师，主要研究方向为机电一体化设计。
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