Modeling and analysis of a pyrotechnic separation protecting device under explosion shock

	Modeling and analysis of a pyrotechnic separation protecting device under explosion shock
	Cao, N.-L.; H. Xu; H.-W. Xin and Z.-L. Li
	2015
发表期刊	Zhendong yu Chongji/Journal of Vibration and Shock
卷号	34 期号:8 页码:20-25
摘要	In order to simulate the dynamic features of a pyrotechnic separation protecting device under explosion shock, firstly its simplified model was built, the initial velocity of the pyrotechnic separation body was calculated. The plastic deformation and deformation energy of the device under clamped boundary were derived. The protecting device adopted aluminum alloy, titanium alloy and honeycomb core material, the multi-linear constitutive models of the three materials were built. The analysis of impulse response was performed using the dynamic explicit method. The results showed that honeycomb core has the best energy absorption capability, and the energy absorption capability of aluminum alloy is between those of titanium alloy and honeycomb core, its plastic deformation is moderate. The coupling analysis of strain energy release and explosion shock indicated that the small proportion of strain energy reveals the process of oscillation decay; the impulse response characteristics of the structure are caused primarily by explosion shock. Tests showed that the transient dynamic process of the device is consistent with the analysis results, the local maximum stress is 302MPa, the maximum value of the shock response spectrum (SRS) is 3242g, and the requirements of the payload separation are satisfied. , 2015, Chinese Vibration Engineering Society. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56358
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Cao, N.-L.,H. Xu,H.-W. Xin and Z.-L. Li. Modeling and analysis of a pyrotechnic separation protecting device under explosion shock[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2015,34(8):20-25.
APA	Cao, N.-L.,H. Xu,&H.-W. Xin and Z.-L. Li.(2015).Modeling and analysis of a pyrotechnic separation protecting device under explosion shock.Zhendong yu Chongji/Journal of Vibration and Shock,34(8),20-25.
MLA	Cao, N.-L.,et al."Modeling and analysis of a pyrotechnic separation protecting device under explosion shock".Zhendong yu Chongji/Journal of Vibration and Shock 34.8(2015):20-25.

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