|Table of Contents|

Topology optimization design of mounting structure for plasma engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2023年04期
Page:
43-50
Research Field:
目次
Publishing date:

Info

Title:
Topology optimization design of mounting structure for plasma engine
Author(s):
SHI Bo;  YANG Guangjie;  WEI Jianguo;  TAN Chang
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
plasma engine;  mounting structure;  configuration optimization;  topology optimization
PACS:
V439+.2
DOI:
-
Abstract:
For the mounting structure of plasma engine, the design idea and method of structural topology optimization under the constraints of static and dynamic conditions are studied. Firstly, the defects of the original structure are analyzed by modal simulation to find the direction of structural improvement. Next, the topology optimization design is applied to obtain the optimal configuration that meets the design requirements. Finally, considering the technological requirements of structural assembly, the practical engineering optimal scheme is obtained by combining topology optimization and size optimization. Compared with the original structure, the mass of the optimized structure is reduced by 10.8%. In terms of static bearing capacity, the maximum displacement of the optimized structure is reduced by 61.1%, and the support stiffness is greatly enhanced. The maximum stress of the structure is reduced by 1.4%, the stress distribution is more uniform, and the average stress is reduced. In terms of dynamic bearing capacity, the vibration modes of the optimized structure with up-down and left-right yaw are significantly improved, and the corresponding frequencies of the 1st to 6th order vibration modes are increased by 5% to 39.8%. The RMS stress value and damage of the optimized structure under random vibration load are reduced, and the fatigue life is significantly improved. The correctness and effectiveness of the design method are verified with the performance improvement of the optimized structure.

References:

[1] 毛根旺,唐金兰.航天器推进系统及其应用[M].西安:西北工业大学出版社,2009.
[2] SACKHEIM R.Overview of United States space propulsion technology and associated space transportation systems[J].Journal of Propulsion and Power,2006,22:1310-1332.
[3] 杜镇志,陈雄,李映坤,等.超音速电弧加热等离子发动机的数值研究[J].真空科学与技术学报,2016,36(2):186-192.
[4] 朱继宏,高欢欢,张卫红,等.航天器整体式多组件结构拓扑优化设计与应用[J].航空制造技术,2014,57(14):26-29.
[5] 高文俊,吕西林.拓扑优化在结构工程中的应用[J].结构工程师,2020,36(6):232-241.
[6] 朱黎明.基于拓扑优化的钢桥结构合理构型研究[J].河南大学学报(自然科学版),2019,49(5):612-617.
[7] 耿志卿,陈昌亚,陆希,等.直接转移方式的木星探测器构型设计及轻量化[J].机械制造与自动化,2020,49(1):150-153.
[8] MLEJNEK H P,SCHIRRMACHER R.An engineer's approach to optimal material distribution and shape finding[J].Computer Methods in Applied Mechanics and Engineering,1993,106(1/2):1-26.
[9] SETHIAN J A,WIEGMANN A.Structural boundary design via level set and immersed interface methods[J].Journal of Computational Physics,2000,163(2):489-528.
[10] BENDSØE M P,KIKUCHI N.Generating optimal topologies in structural design using a homogenization method[J].Computer Methods in Applied Mechanics and Engineering,1988,71(2):197-224.
[11] XIE Y M,STEVEN G P.Evolutionary structural optimization for dynamic problems[J].Computers & Structures,1996,58(6):1067-1073.
[12] 朱继宏,张卫红,邱克鹏.结构动力学拓扑优化局部模态现象分析[J].航空学报,2006,27(4):619-623.
[13] 何芝,雷阳,封硕,等.基于SIMP法的变刚度结构拓扑优化研究[J].装备制造技术,2020(1):8-14.
[14] 滕晓艳,毛炳坤,江旭东.光滑双向渐进结构优化法拓扑优化连续体结构频率和动刚度[J].农业工程学报,2019,35(7):55-61.
[15] 谢浩然,贺媛媛,陶志坚.扑旋翼飞行器气动特性分析及机翼拓扑优化设计[J].南京航空航天大学学报,2020,52(2):280-287.
[16] 王端义,徐文涛.航天结构带频率禁区的动力学拓扑优化设计[J].应用力学学报,2020,37(6):2574-2581.
[17] 张允涛,薛杰,宋少伟,等.轨姿控发动机振动试验夹具结构拓扑优化[J].火箭推进,2023,49(1):93-102.
ZHANG Y T,XUE J,SONG S W,et al.Structural topology optimization of vibration test fixture for orbit and attitude control engines[J].Journal of Rocket Propulsion,2023,49(1):93-102.
[18] 袁家军,于登云,陈烈民,等.卫星结构设计与分析[M].北京:中国宇航出版社,2004.
[19] 石波,盛刚,黄雪刚,等.吸气式发动机可调喷管调节片结构优化设计[J].火箭推进,2021,47(3):52-59.
SHI B,SHENG G,HUANG X G,et al.Structural optimization design for variable nozzle flap of airbreathing engines[J].Journal of Rocket Propulsion,2021,47(3):52-59.
[20] 孟凡涛,胡愉愉.基于频域法的随机振动载荷下飞机结构疲劳分析[J].南京航空航天大学学报,2012,44(1):32-36.
[21] 薛杰,王伟,杜大华,等.姿控动力系统连接螺钉振动疲劳仿真分析研究[J].火箭推进,2019,45(4):38-44.
XUE J,WANG W,DU D H,et al.Simulation analysis for vibration fatigue of the screw in divert and attitude control system[J].Journal of Rocket Propulsion,2019,45(4):38-44.

Memo

Memo:
-
Last Update: 1900-01-01