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Design and experimental research on buffer protection of high-g penetrator for deep space exploration
Luo HT(骆海涛)1,2; Li YX(李玉新)3; Fan CH(范朝辉)1,2; Wu XY(吴星元)1,4; Liu GM(刘广明)1,2
Department空间自动化技术研究室
Source PublicationActa Astronautica
ISSN0094-5765
2021
Volume189Pages:63-78
Indexed ByEI
EI Accession number20213510823973
Contribution Rank1
Funding OrganizationNational Natural Science Foundation of China (No.51975567) ; Liao Ning Revitalization Talents Program (XLYC1907152) ; Natural Science Foundation of Liaoning Province (2019-MS-347) ; State Key Laboratory of Robotics (2022-Z01) ; Chinese Academy of Science Youth Innovation Promotion Association (No.2018237) ; Jiang Xin-song Innovation Fund (No.20180504)
KeywordPenetration Lunar soil Shock response spectrum Peak acceleration
Abstract

Deep space exploration technology is an important development direction for scientific exploration. The penetrator method has been proposed as an inexpensive method of studying planetary bodies. The basic principle of this method is that the detection equipment carried by the high-speed penetrator hits a planetary body at a high speed and is buried up to several meters below the surface to carry out detection work. During the frictional collision process with the planets crust, the instantaneous acceleration peaks of the scientific payload (electronic instrumentation) are large. Shock protection of these payloads is necessary to improve their survival and mission success. In this paper, with the goal of improving the survival rate of scientific loads inside a penetrator, a penetrator with a multilayer energy-absorbing structure is developed, in which cushioning protection measures, such as an aluminum foam-filled corrugated tube(AFFT) structure, polyurethane rubber, and epoxy resin potting, are applied to the penetrator. Since the analysis of this process is a highly nonlinear problem, a numerical modeling method is the main approach in this paper. The LS-DYNA software platform was used to simulate the penetrators penetration process on a moon soil medium. The results obtained using empirical formulas and theoretical derivations were compared with the results of numerical analysis to ensure the accuracy of the penetration simulation model. The finite element model of the penetrator was then verified and modified by conducting shock response spectral experiments and shock simulations. The results showed that the spacer scheme had a positive effect on the impact isolation and energy absorption. In addition, this scheme provides an important reference for the design of the penetrator prototype to guarantee the success of subsequent ground rocket sled experiments.

Language英语
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/29548
Collection空间自动化技术研究室
Corresponding AuthorLuo HT(骆海涛)
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences (CAS), Shenyang 110016, China
2.Institute for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
3.School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
4.School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China
Recommended Citation
GB/T 7714
Luo HT,Li YX,Fan CH,et al. Design and experimental research on buffer protection of high-g penetrator for deep space exploration[J]. Acta Astronautica,2021,189:63-78.
APA Luo HT,Li YX,Fan CH,Wu XY,&Liu GM.(2021).Design and experimental research on buffer protection of high-g penetrator for deep space exploration.Acta Astronautica,189,63-78.
MLA Luo HT,et al."Design and experimental research on buffer protection of high-g penetrator for deep space exploration".Acta Astronautica 189(2021):63-78.
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