六分量车轮力传感器结构多目标优化设计  

Multi-objective Optimization and Design of Six-component Wheel Force Transducer Structure

作　　者：贺辉 李响[1] 马洪强[2] He Hui;Li Xiang;Ma Hongqiang(School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;China Academy of Aerospace Aerodynamics, Beijing 100074, China)

机构地区：[1]北京理工大学宇航学院,北京100081 [2]中国航天空气动力技术研究院,北京100074

出　　处：《机械科学与技术》2019年第6期915-921,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50875024)资助

摘　　要：以六分量车轮力传感器为研究对象,进行考虑一致灵敏度和低耦合度的传感器结构多目标优化设计。首先利用有限元分析确定应变计位置,并设计测力电桥。采用最优拉丁超立方实验设计方法分析传感器结构参数对灵敏度和耦合度的影响程度。建立起考虑一致灵敏度和低耦合度的多目标结构优化设计模型,并采用NSGA-II遗传算法求解该优化设计问题。优化设计后的传感器最大耦合降到3.8%,条件数降低到2.39,在一致灵敏度和低耦合度两个相互矛盾的性能间取得了较好的平衡。This paper studies the multi-objective optimization and design of the structure of a six-component wheel force transducer with the uniform sensitivity and the low coupling considered. Firstly, the position of the strain gauge is determined with the finite element method, and then the force bridge is designed. The optimal Latin hypercube experimental design method is used to analyze the influence of structural parameters on sensitivity and coupling. A multi-objective structural optimization design model is established and solved by NSGA-II. After optimization, the maximum coupling of the transducer is reduced to 3.8%, and the condition number is reduced to 2.39. A good balance between two contradictory properties of uniform sensitivity and low coupling has been achieved.

关 键 词：六分量车轮力传感器 多目标优化 一致灵敏度 耦合度 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]