Numerical simulation and analysis for point separating pyroshock source and load forming mechanism

被引：0

作者：

Zhao X. ^{[1
]}

Zheng S.-G. ^{[1
]}

Han Z.-Y. ^{[2
]}

Zou Y.-J. ^{[1
]}

Ding J.-F. ^{[1
]}

机构：

[1] Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing

[2] Institute of Research and Development, China Academy of Space Technology, Beijing

来源：

| 1600年 / China Spaceflight Society卷 / 37期

关键词：

Load transfer; LS-DYNA software; Pyroshock; Separating of spacecraft and launch vehicle; Spacecraft;

D O I：

10.3873/j.issn.1000-1328.2016.06.004

中图分类号：

学科分类号：

摘要：

Using the 'source system-near field structures' integrated modeling and analyzing method, the work process of a point separating pyrotechnic is simulated. The loading function inside the interface of the spacecraft and launch vehicle is computed. The motion law of the high pressure gas and detonation products inside the hermetic cavity is reciprocating. The key structures bump to trigger the unlocking of the separating nut. The load transfer mechanism inside the separating nut is analyzed, and the forming of the load inside the interface of the spacecraft and launch vehicle is determined by the explosion pressure, together with the motion state and the impact of the parts through the transfer paths, and the stress attenuation inside the materials. © 2016, Editorial Dept. of JA. All right reserved.

引用

页码：657 / 663

页数：6