基于改进模糊评判法的重载夹钳承载能力评价研究  

Evaluation of Bearing Capability of Heavy-duty Gripper Based on Improved Fuzzy Comprehensive Evaluation

作　　者：娄丙民[1] 曾怀宇 李宁 

机构地区：[1]中南大学机电工程学院,湖南长沙410083 [2]桂林市环境卫生管理处,广西桂林541001

出　　处：《机械工程与自动化》2011年第4期1-3,10,共4页Mechanical Engineering & Automation

基　　金：国家重点基础研究发展"973"规划资助项目(2006CB705400)

摘　　要：针对重载夹钳承载能力影响因素之间多重相关性和不确定性导致的承载能力评价研究困难的问题,首先以3MN/7MNm夹钳的夹持力为目标函数建立其关于自变量之间的数学模型,利用循环程序与MATLAB软件自带的fincon相结合的优化方法进行全局性寻优,得到几组不同参数组合对夹钳承载能力的影响;然后重点基于模糊综合评判法,客观地评价夹钳承载能力的高低,从而避免了人为主观确定权重的缺点,使得评价模型更加合理、科学。并与MATLAB仿真结果进行了对比分析,验证了本方法的合理性。As the factors affecting the bearing capability of a heavy-duty gripper have multi-correlation and uncertainty,so it is difficult to assess the bearing capability.Firstly,this article takes a 3MN/7MNm clamp＇s chucking power as the objective function to establish the mathematical model between the independent variables,carries on the overall optimization by combining the cyclic program and the toolbox fincon in MATLAB,and finds out the influence of several groups of different parameter combinations on the clamp bearing capacity.Then,based on fuzzy comprehensive evaluation,it judges clamp bearing capacity.This mothed avoids the shortcoming of the subjective weight,makes the evaluation model more reasonable.Finally,this method is confirmed effective by carrying on the contrastive analysis with the MATLAB simulation result.

关 键 词：夹钳承载能力 模糊综合评判法 评价指标体系 

分 类 号：TG315[金属学及工艺—金属压力加工]