|Table of Contents|

Topological optimization of lattice material for shell structure of RF ion thruster(PDF)

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

Issue:
2023年04期
Page:
51-59
Research Field:
目次
Publishing date:

Info

Title:
Topological optimization of lattice material for shell structure of RF ion thruster
Author(s):
YANG Libo;  SHI Bo;  LU Haifeng;  LI Jiyuan;  TAN Chang
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
RF ion thruster;  shell;  light weight;  topology optimization of lattice materials
PACS:
V439+.4
DOI:
-
Abstract:
Aiming at the light weight requirement of the shell structure of RF ion thruster, the idea and method of topology optimization design of lattice material were studied. Firstly, the original structure was analyzed by statics simulation and dynamics simulation to obtain the improved foundation of the structure. Secondly, the force transfer path of the structure was obtained by using the topology optimization method of the structure. Thirdly, the optimum design domain of lattice material was obtained by combining the load transfer path and the installation and use requirements of shell structure. Finally, the optimal scheme of lattice topology optimization was obtained through the optimal design of lattice materials. Compared with the original structure, the mass of the optimized scheme was reduced by 31.5%. In terms of dynamics, the modals of the structure was improved, which is better to avoid the vibration frequency range of the thruster when working. Under load, the maximum stress of the structure was reduced by 59%-67%. The stress distribution of the structure is more uniform, the deformation of the structure is reduced correspondingly, and the stiffness of the structure is improved. The light weight and performance improvement of the optimized structure verify the effectiveness of the design method.

References:

[1] 赵杨,邓永锋,魏建国,等.真空微弧推进系统试验及在轨测试[J].火箭推进,2022,48(4):88-96.
ZHAO Y,DENG Y F,WEI J G,et al.Experimental study on vacuum micro-arc thruster and on-orbit test[J].Journal of Rocket Propulsion,2022,48(4):88-96.
[2] 杨振宇,赵杨,李光熙,等.1 mN射频离子推力器参数与性能分析[J].火箭推进,2020,46(3):75-82.
YANG Z Y,ZHAO Y,LI G X,et al.Parameters and performance analysis of 1 mN RF ion thruster[J].Journal of Rocket Propulsion,2020,46(3):75-82.
[3] 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.
[4] 周克民,李俊峰,李霞.结构拓扑优化研究方法综述[J].力学进展,2005,35(1):69-76.
[5] 卢天健,何德坪,陈常青,等.超轻多孔金属材料的多功能特性及应用[J].力学进展,2006,36(4):517-535.
[6] LIU T,DENG Z C,LU T J.Bi-functional optimization of actively cooled,pressurized hollow sandwich cylinders with prismatic cores[J].Journal of the Mechanics and Physics of Solids,2007,55(12):2565-2602.
[7] WANG J,LU T J,WOODHOUSE J,et al.Sound transmission through lightweight double-leaf partitions:Theoretical modelling[J].Journal of Sound and Vibration,2005,286(4/5):817-847.
[8] 杜义贤,李涵钊,田启华,等.基于能量均匀化的高剪切强度周期性点阵结构拓扑优化[J].机械工程学报,2017,53(18):152-160.
[9] ZHOU Q,MAYER R R.Characterization of aluminum honeycomb material failure in large deformation compression,shear,and tearing[J].Journal of Engineering Materials and Technology,2002,124(4):412-420.
[10] AL-HOMOUD D M S.Performance characteristics and practical applications of common building thermal insulation materials[J].Building and Environment,2005,40(3):353-366.
[11] 杜善义.先进复合材料与航空航天[J].复合材料学报,2007,24(1):1-12.
[12] 左蔚,赵剑,白静,等.激光选区熔化菱形正十二面体点阵材料的承载与失效特性[J].火箭推进,2020,46(5):87-93.
ZUO W,ZHAO J,BAI J,et al.Research on bearing and disable properties of laser selective melting rhombohedral dodecahedral lattice materials[J].Journal of Rocket Propulsion,2020,46(5):87-93.
[13] ARABNEJAD KHANOKI S,PASINI D.Fatigue design of a mechanically biocompatible lattice for a proof-of-concept femoral stem[J].Journal of the Mechanical Behavior of Biomedical Materials,2013,22:65-83.
[14] COELHO P G,FERNANDES P R,GUEDES J M,et al.A hierarchical model for concurrent material and topology optimisation of three-dimensional structures[J].Structural and Multidisciplinary Optimization,2008,35(2):107-115.
[15] 廖中源,王英俊,王书亭.基于拓扑优化的变密度点阵结构体优化设计方法[J].机械工程学报,2019,55(8):65-72.
[16] WANG Y J,XU H,PASINI D.Multiscale isogeometric topology optimization for lattice materials[J].Computer Methods in Applied Mechanics and Engineering,2017,316:568-585.
[17] 冯佳宾.变密度法在连续体与点阵材料拓扑优化中的应用研究[D].武汉:华中科技大学,2019.
[18] SIGMUND O.A 99 line topology optimization code written in Matlab[J].Structural and Multidisciplinary Optimization,2001,21(2):120-127.
[19] OGUMA M,JINGUJI K,KITOH T,et al.Flat-passband interleave filter with 200 GHz channel spacing based on planar lightwave circuit-type lattice structure[J].Electronics Letters,2000,36(15):1299.
[20] ARABNEJAD S,PASINI D.Mechanical properties of lattice materials via asymptotic homogenization and comparison with alternative homogenization methods[J].International Journal of Mechanical Sciences,2013,77:249-262.
[21] HYUN S,KARLSSON A M,TORQUATO S,et al.Simulated properties of Kagomé and tetragonal truss core panels[J].International Journal of Solids and Structures,2003,40(25):6989-6998.
[22] 朱健峰,戴宁,刘乐乐.功能性点阵结构设计优化技术研究[J].机械设计与制造工程,2020,49(7):1-6.
[23] 梁雄,杜平,朱丽君,等.面向增材制造的镂空点阵结构设计模块分析[J].制造技术与机床,2021(3):44-48.
[24] 洪清泉.OptiStruct & HyperStudy理论基础与工程应用[M].北京:机械工业出版社,2013.

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