• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (14): 60-68.doi: 10.3901/JME.2019.14.060

• 运载工程 • 上一篇    下一篇

运载火箭线式捆绑分离装置的设计、分析与优化

毕祥军1, 陈炳全1,2, 吴浩3, 王立朋3, 蒋亮亮3, 王博1, 周才华1,4   

  1. 1. 大连理工大学工业装备结构分析国家重点实验室 大连 116024;
    2. 中车长春轨道客车股份有限公司 长春 130062;
    3. 北京宇航系统工程研究所 北京 100076;
    4. 大连理工大学机械工程学院 大连 116024
  • 收稿日期:2018-09-05 修回日期:2019-01-09 出版日期:2019-07-20 发布日期:2019-07-20
  • 通讯作者: 周才华(通信作者),男,1987年出生,博士后。主要研究方向为结构耐撞性与优化设计。E-mail:zhoucaihua@dlut.edu.cn
  • 作者简介:毕祥军,男,1970年出生,硕士,副教授,硕士研究生导师。主要研究方向为实验力学。E-mail:bixj@dlut.edu.cn;陈炳全,男,1992年出生,硕士研究生。主要研究方向为结构优化设计。E-mail:chenbingquan@mail.dlut.edu.cn;王立朋,男,1979年出生,博士,高级工程师。主要研究方向为航天结构强度分析与优化设计。E-mail:wanglipeng79@126.com
  • 基金资助:
    工业装备结构分析国家重点实验室开放项目基金(GZ1510)、国家自然科学基金(11802051,11802053,11825202)、大连理工大学基本科研业务费(DUT17GF103)和中国博士后科学基金(2018M640252)资助项目。

Design, Analysis and Optimization of Linear Bundled Separation Device for Launch Vehicle

BI Xiangjun1, CHEN Bingquan1,2, WU Hao3, WANG Lipeng3, JIANG Liangliang3, WANG Bo1, ZHOU Caihua1,4   

  1. 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024;
    2. CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062;
    3. Beijing Institute of Astronautical Systems Engineering, Beijing 100076;
    4. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024
  • Received:2018-09-05 Revised:2019-01-09 Online:2019-07-20 Published:2019-07-20

摘要: 目前运载火箭的点式捆绑分离结构在承载过程中会产生过大的集中载荷。为解决这个问题,首次提出将线式分离系统应用在芯级与助推器的捆绑分离问题上,并对其进行结构优化设计,以提高结构的传力效率,实现结构轻量化。借助于有限元方法,分析捆绑状态下的受力状态和瞬态内压作用下分离系统的分离过程,深入地探讨出线式捆绑分离装置的捆绑和分离原理。基于Isight多学科优化平台集成ABAQUS,完成针对线式捆绑分离装置的优化设计。相比于传统的点式捆绑分离结构,优化后的线式捆绑分离装置减重48%,其点式结构产生的集中载荷过大问题得以有效缓解。线式捆绑分离装置的设计,和所运用的分析、优化体系,可以为我国未来运载火箭各类典型结构的设计提供参考。

关键词: 结构优化设计, 捆绑连接, 线式分离系统, 运载火箭

Abstract: Currently, the dotted strap-on linkage of launch vehicle has caused excessive concentrated load in the working process. In order to solve the problem, it's presented for the first time that a linear separation system can be applied to the issue of bundled separation between the central stage and the booster. And then linear bundled separation device is optimized to improve the power transmission efficiency and realize the lightweight design. FEM analysis is used to discuss the separation and linkage principle of linear bundled separation device, by simulating stress during binding and the separation process under transient internal pressures. Based on multidisciplinary optimization platform Isight and ABAQUS, the optimization design of linear bundled separation device is completed. Compared with the traditional dotted strap-on linkage, the optimized linear bundled separation device can lose the weight of the launch vehicle 48%, and the problem of excessive concentrated load is effectively solved. Design of linear bundled separation device and the analysis-optimization system will provide reference for our country's typical structures of launch vehicle in the future.

Key words: launch vehicle, linear separation joints, strap-on linkage, structural optimization design

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