Abstract:In spacecraft design, isolator can be optimally located in aft of the satellite in order to attenuate shock load from the launch vehicle. Based on proposed analytical model, a shock isolator has been designed, analyzed, and tested. Impact test has been conducted with mechanical impulse pyro shock (MIPS) system. Experimental results show that the multi-layered shock isolator provides obvious reduction in shock load transmission from support base to payload. Moreover, the effect of structure damping on stiffness, vibration transmission characteristics and shock attenuation is discussed. The shock isolator is suitable for use on spacecraft launch system, and the presented structure will develop to be a very effective means with great application prospect.
严鲁涛,李红,丁洋,王有杰, 杨志鹏. 整星减冲击装置设计及试验研究[J]. 振动与冲击, 2017, 36(14): 138-141.
YAN Lu-tao LI Hong DING Yang WANG You-jie YANG Zhi-peng. Design and test for whole spacecraft shock isolation structure. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(14): 138-141.
[1] Hughes W O, McNelis A M. Pyroshock Environments Characterized for Spacecraft Missions[R]. NASA/TP -2005-0194723, 2005.
[2] 张建华. 航天产品的爆炸冲击环境技术综述[J]. 导弹与航天运载技术, 2005, 3: 30-36
Zhang Jianhua. Pyroshock Environment of Missiles and Launch Vehicles [J]. Missiles and Space Vehicles, 2005, 3: 30-36
[3] 周文亮,王强. 冲击隔离发展浅谈[J]. 噪声与振动控制, 2002, 5: 22-25.
ZHOU Wen-liang,WANG Qian. The Development of Shock Isolation:An Overview[J]. Noise and vibration control, 2002, 5: 22-25.
[4] 肖锋, 谌勇, 章振华, 等. 夹层结构冲击动力学研究综述[J]. 振动与冲击, 2013, 32(18): 1-7.
XIAO Feng, CHEN Yong, ZHANG Zhen-hua, et al. A review of studying on impact dynamics of sandwich structures [J]. Journal of Vibration and Shock, 2013, 32(18): 1-7.
[5] 董彦鹏,吕振华. 基于蜂窝材料结构相似有限元模型的夹层结构抗爆炸冲击特性优化设计分析[J]. 工程力学, 2013, 30(7): 248-254.
DONG Yan-peng , Lü Zhen-hua. Analysis and optimization of blast-resistant sandwich structure utilising structural similar FE model of honeycomb material[J]. Engineering Mechanics, 2013, 30(7): 248-254.
[6] 康建功, 石少卿. 沫铝衰减冲击波峰值压力的理论及数值分析[J]. 振动与冲击, 2010, 29 (5): 199-202.
KANG Jian-gong; SHI Shao-qing. Theoretical and numerical analysis for a cladding aluminum foam sandwich panel attenuating blasting wave pressure[J]. Journal of Vibration and Shock, 2010, 29 (5): 199-202.
[7] 张军, 谌勇, 骆剑,华宏星. 整星隔振技术的研究现状和发展[J]. 航空学报, 2005, 26(2): 179-183.
ZHANG Jun, CHEN Yong, LUO Jian, HUA Hong-xing. Review of the Whole-spacecraft Isolation Techniques[J]. Acta aeronautica et astronautica sinica, 2005, 26(2): 179-183.
[8] Conor D. Johnson, Paul S. Wilke. Recent launches using the softride whole-spacecraft vibration isolation system[C]. 2001, AIAA Space 2001 Conference, AIAA 2001-4708, Albuquerque, NM.
[9] Conor D. Johnson, Paul S. Wilke. Protecting satellites from the dynamics of the launch environment[C]. 2003, AIAA Space 2003 Conference, AIAA 2003-6266, Long Beach, California.
[10] Conor D. Johnson, Paul S. Wilke, Scott C. Pendleton. SoftRide Vibration and Shock Isolation Systems that Protect Spacecraft from Launch Dynamic Environments [C].Proceedings of the 38th Aerospace Mechanisms Symposium, Langley Research Center, 2006.
[11] 王礼立. 应力波基础[M]. 北京:国防工业出版社, 1985.
[12] GJB 979-90,ZN-1阻尼材料[S].