Study on Adaptive Shape Optimization

作     者：邹文胜 左正兴 范志刚 张儒华 

作者机构：北京理工大学车辆工程学院 山西车用发动机研究所 

出 版 物：《Journal of Beijing Institute of Technology》 (北京理工大学学报（英文版）)

年 卷 期：1998年第7卷第2期

页      面：154-160页

核心收录：

学科分类：08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 081102[工学-检测技术与自动化装置] 

主　　题：adaptive shape optimization structure strength bearing cap 

摘      要：Aim To introduce a new method of adaptive shape optimization (ASOP) based on three-dimensional structure boundary strength and optimize an engine bearing cap with the method. Methods Using the normal substance s property of thermal expansion and cooling shrinkage,the load which is proportional to the difference between the nodes stress and their respective objective stress were applied to the corresponding variable nodes on the *** thermal load made the nodes whose stress is greater than their objective stress expand along the boundary s normal direction and the nodes whose stress is less than objec- tive stress shrink in the opposite direction , This process would repeat until the stress on the boundary nodes was converge to the objective stress. Results The satisfied results have been obtained when optimizing an engine bearing *** mass of the bearing cap is reduced to 55 percent of the total. Conclusion ASOP is an efficient,practical and reliable method which is suitable for optimizing the shape of the continuous structures.