) 南京理工大学 机械工程学院, 南京 210094
收稿日期:2020-09-08出版日期:2021-11-28发布日期:2021-12-03通讯作者:李军E-mail:leejun_nust@163.com作者简介:葛世程(1996-),男,广西壮族自治区南宁市人,硕士生,主要从事火箭炮发射箱吊装系统设计及结构优化研究.Multi-Objective Optimization for Structural Parameters of Swing-Compliant Hook
GE Shicheng, GUO Zhuoyu, LIANG Xi, MO Zonglai, LI Jun() School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Received:2020-09-08Online:2021-11-28Published:2021-12-03Contact:LI Jun E-mail:leejun_nust@163.com摘要/Abstract
摘要： 针对目前野战火箭炮发射箱装填过程的对准问题,提出一种新型末端执行机构——摆动柔顺式吊钩,并对其结构参数进行优化.首先,基于节点位移法建立描述摆动柔顺式吊钩性能的理论模型,并通过MATLAB分析摆动柔顺式吊钩的静态位移、静态应力和摆动曲线,验证模型工作的合理性.同时,采用实验设计方法筛选影响摆动柔顺式吊钩性能的主要结构参数,并建立表征摆动柔顺式吊钩综合性能的响应面模型.优化结果表明,当柔性机构长度为90 mm,其安装高度为23 mm,吊钩末端高度为110 mm时,摆动柔顺式吊钩在对接、起吊、转运和落装时的性能最优.
关键词: 发射箱, 装填系统, 柔性机构, 节点位移法, 实验设计方法
Abstract: To solve the problems of alignment for launch container loading in field-artillery rocket, a novel end-effector, i.e., a swing-compliant hook, is proposed, whose structural parameters are optimized. First, the theoretical model describing the performance of the swing-compliant hook is established based on the node displacement method. The static displacement, static stress, and swing curve of the swing-compliant hook are analyzed by MATLAB, which verifies the rationality of the model. Then, the main structure parameters on the performance of the swing-compliant hook are obtained by using the experimental design method. Additionally, a response surface model characterizing the comprehensive performance of the swing-compliant hook is established. The optimization results show that when the length and the installation height of the compliant mechanism are 90 mm and 23 mm, and the end height of the lifting hook is 110 mm, the swing-compliant hook has an excellent performance in docking, lifting, transferring, and locating.
Key words: launch container, loading system, compliant mechanism, node displacement method, experimental design method
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