航天推进技术研究院主办
[1]袁迪野,吕宇超,李志立,等.面向增材制造的内置流道一体化支架拓扑优化设计[J].火箭推进,2023,49(04):36-42.
YUAN Diye,LYU Yuchao,LI Zhili,et al.Topology optimization design of integrated bracket with embedded pipelines for additive manufacturing[J].Journal of Rocket Propulsion,2023,49(04):36-42.
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YUAN Diye,LYU Yuchao,LI Zhili,et al.Topology optimization design of integrated bracket with embedded pipelines for additive manufacturing[J].Journal of Rocket Propulsion,2023,49(04):36-42.
面向增材制造的内置流道一体化支架拓扑优化设计
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
49
期数:
2023年04期
页码:
36-42
栏目:
目次
出版日期:
2023-08-25
- Title:
- Topology optimization design of integrated bracket with embedded pipelines for additive manufacturing
- 文章编号:
- 1672-9374(2023)04-0036-07
- Keywords:
- integrated bracket; embedded pipelines; structure optimization; topology optimization; additive manufacturing
- 分类号:
- V431
- 文献标志码:
- A
- 摘要:
- 针对星载发动机一体化支架必须同时满足流道功能、承载、工艺要求的轻量化设计问题,提出了一种面向增材制造的内置流道结构拓扑优化设计流程。将内置流道功能型面保留并作为非设计区域,建立一体化支架设计模型; 在满足轻量化要求下以提高力学性能为目标,利用拓扑优化获取结构的主传力路径,完成优化构型的模型重构; 以保证流道内表面加工质量为依据,确定一体化支架增材制造打印角度,进而对支撑结构的去除工艺性进行分析,完成了全尺寸样件制造。有限元分析结果和样件加工过程表明:一体化支架优化设计方案内置流道的加工质量、结构的强度和刚度性能均满足设计要求,打印结构支撑易去除、工艺性好,较原设计方案减质40.6%,优化设计减质效果显著。
- Abstract:
- Aiming at the lightweight design problem for the spaceborne engine integrated bracket to meet simultaneously the fluid flow, load bearing and manufacturing requirements, an additive manufacturing oriented topology optimization design process of structures with embedded pipelines was proposed. The design model was established where the functional surface of the pipelines was retained as the non-designable region. The main load-transmission path was obtained by topology optimization for lightweightness and high performance. The final structure was obtained by model reconstruction based on the optimized configuration. The printing angle for additive manufacturing was determined to ensure the inner surface quality of embedded pipelines. A full-size structure was additively manufactured and the removal of support structures was analyzed. It is shown that the manufacturing quality of embedded pipelines, the strength and stiffness of integrated bracket all meet the design requirements. The support structure can be easily removed and the manufacturing processability is good. A significant mass reduction of 40.6% is obtained compared with original structure.
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备注/Memo
收稿日期:2022-11-01; 修回日期:2023-01-12
基金项目:国家自然科学基金项目(12172294,12032018)
作者简介:袁迪野(1998—),男,硕士,研究领域为热流耦合结构拓扑优化。
通信作者:高彤(1980—),男,博士,教授,研究领域为航空航天高性能结构设计。
更新日期/Last Update:
1900-01-01