面向装配结构的拓扑优化参数影响分析

doi:10.3901/JME.2024.15.291

机械工程学报 ›› 2024, Vol. 60 ›› Issue (15): 291-303.doi: 10.3901/JME.2024.15.291

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面向装配结构的拓扑优化参数影响分析

林起崟^1,2, 贾一鸣^1,2, 周意葱^1,2, 王晨^1,2, 洪军^1,2

1. 西安交通大学机械工程学院西安 710049;
2. 西安交通大学现代设计及转子轴承系统教育部重点实验室西安 710049

收稿日期:2023-08-09 修回日期:2024-01-13 出版日期:2024-08-05 发布日期:2024-09-24
作者简介:林起崟(通信作者)，男，1987年出生，博士，教授，博士研究生导师。主要研究方向为装配界面设计理论与方法。E-mail：linqiyin@xjtu.edu.cn
贾一鸣，男，1998年出生。主要研究方向为陀螺仪关键装配连接界面优化设计。E-mail：1397239198@qq.com
基金资助:
国家自然科学基金资助项目(52222508,52335011)。

Analysis of Topology Optimization Parameters for Assembly Structure

LIN Qiyin^1,2, JIA Yiming^1,2, ZHOU Yicong^1,2, WANG Chen^1,2, HONG Jun^1,2

1. School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049;
2. Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049

Received:2023-08-09 Revised:2024-01-13 Online:2024-08-05 Published:2024-09-24

摘要/Abstract

摘要： 随着当前精密与超精密加工技术水平的提升，单个机械零部件的加工质量已经能够满足精度要求，但是现有的装配结构的质量却难以保障。为了提高面向装配结构连接性能拓扑优化方法的鲁棒性，同时给加工制造提供多种拓扑优化布局，以弹性装配结构为优化对象，对装配接触结构拓扑优化过程中优化参数对优化过程的影响进行分析。基于不同过滤半径对优化结果的影响规律，引入“各向异性过滤”方法，消除了装配体拓扑优化过程中出现的“界面效应”。另外为提高所优化结构的可加工制造性，引入两种最小长度控制方法，对两者的优化效果进行对比分析讨论，最终保证拓扑优化设计结果的可加工制造性。最后分析了光滑Heavside函数中锐度因子与阈值参数对优化结果的影响机制。

关键词: 装配接触压力, 拓扑优化, 装配界面设计, 优化参数分析, 加工制造性

Abstract: With the improvement of precision and ultra-precision processing technology, the processing quality of individual mechanical parts can be fully guaranteed. But the quality of the assembly connector is difficult to guarantee as easily as individual parts. In order to improve the robustness of the topology optimization method for the connection performance of the assembly structure, while providing a variety of topology optimization layouts for manufacturing, the flexible assembly structure was taken as the the optimization object, and the influence of the optimization parameters on the optimization process during the topology optimization of the assembly structure is analyzed. The "Boundary Effect" of the assembly topology optimization process is eliminated by introducing the "Anisotropic Filtering" method, on the basis of the influences of filter radii on the optimization results. Moreover, to improve the manufacturability of the optimized structure, two minimum length control methods are introduced, and their optimization effects are compared and discussed to ensure the manufacturability of the topology optimization design results. Finally, the influence mechanism of the sharpness factor and threshold parameter in the smooth Heavside function on the optimization results is analyzed.

Key words: contact pressure between assembly objects, topology optimization, assembly interface design, optimization parameter analysis, machinability

中图分类号:

TG156

林起崟, 贾一鸣, 周意葱, 王晨, 洪军. 面向装配结构的拓扑优化参数影响分析[J]. 机械工程学报, 2024, 60(15): 291-303.

LIN Qiyin, JIA Yiming, ZHOU Yicong, WANG Chen, HONG Jun. Analysis of Topology Optimization Parameters for Assembly Structure[J]. Journal of Mechanical Engineering, 2024, 60(15): 291-303.

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面向装配结构的拓扑优化参数影响分析

Analysis of Topology Optimization Parameters for Assembly Structure

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