Response analysis of shipboard equipment under test on floating shock platform

Wang Jun; Yao Xiong-liang; Guo Jun

doi:10.11883/1001-1455(2015)06-0832-07

Volume 35 Issue 6

Nov. 2015

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2015 > 35(6): 832-838

Wang Jun, Yao Xiong-liang, Guo Jun. Response analysis of shipboard equipment under test on floating shock platform[J]. Explosion And Shock Waves, 2015, 35(6): 832-838. doi: 10.11883/1001-1455(2015)06-0832-07

Citation:

Wang Jun, Yao Xiong-liang, Guo Jun. Response analysis of shipboard equipment under test on floating shock platform[J]. Explosion And Shock Waves, 2015, 35(6): 832-838. doi: 10.11883/1001-1455(2015)06-0832-07

Citation:

PDF( 2947 KB)

Response analysis of shipboard equipment under test on floating shock platform

doi: 10.11883/1001-1455(2015)06-0832-07

Wang Jun^{1, 2},
Yao Xiong-liang¹,
Guo Jun^{1
,
,}

1.
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China
2.
The 719 Research Institute of CSIC, Wuhan 430064, Hubei, China

Received Date: 2014-04-29
Rev Recd Date: 2014-06-16
Publish Date: 2015-12-10

Abstract

Abstract

For the study of the mechanism of shipboard equipment on floating shock platform with installation of deck simulator fixture, the numerical simulation and theoretical analysis were carried out through building the finite element model and the mechanical model of the entire system. According to the vertical lowpass filtering characteristics of the deck structure from the hull, the function of the deck simulator fixture which can reduce the impact of high-frequency percussion and meet the requirements of equipment mounting frequency was put forward. The examining system of ship board equipment under test on floating shock platform was simplified to a damping forced vibration model of the three-axis system. The response of the shipboard equipment in different shock environments was calculated by Laplace transform. The results show that the numerical simulation is consistent with the theoretical calculation. The response of the equipment under test increases rapidly to maximum and then decays with time, and the vibration frequency transforms from high to low frequency. The damping effect should be considered when analyzing the long-term response of the examining system of the equipment under test on floating shock platform.
- mechanics of explosion,
- equipment response,
- FEM,
- floating shock platform,
- deck simulator fixture

FullText(HTML)

References(12)

References

[1]	王贡献, 胡吉全, 汪玉, 等.舰船设备水下爆炸冲击模拟器机理与仿真[J].华中科技大学学报:自然科学版, 2008, 36(7): 124-128. http://d.wanfangdata.com.cn/Periodical/hzlgdxxb200807033 Wang Gong-xian, Hu Ji-quan, Wang Yu, et al. Numerical modeling and mechanism of a simulator for underwater explosion shock loads on warship equipments[J]. Journal of Huazhong University of Science and Technology: Natural Science Edition, 2008, 36(7): 124-128. http://d.wanfangdata.com.cn/Periodical/hzlgdxxb200807033
[2]	MIL-S-901D, Shock tests, high impact shipboard machinery equipment and systems, requirements[S]. US NAVY, 1989.
[3]	李国华, 李玉节, 张效慈.浮动冲击平台水下爆炸冲击谱测量与分析[J].船舶力学, 2000, 4(2): 51-60. http://www.cqvip.com/Main/Detail.aspx?id=4326902 Li Guo-hua, Li Yu-jie, Zhang Xiao-ci, et al. Shock spectrum measurement and analysis of underwater explosion on a floating shock platform[J]. Journal of Ship Mechanics, 2000, 4(2): 51-60. http://www.cqvip.com/Main/Detail.aspx?id=4326902
[4]	郑长允, 赵鹏远, 赵红光, 等.设备缓冲平台在水下爆炸载荷作用下冲击响应分析[J].科技导报, 2012, 30(18): 37-40. http://www.cnki.com.cn/Article/CJFDTotal-KJDB201218023.htm Zheng Chang-yun, Zhao Peng-yuan, Zhao Hong-guang, et al. Shock response of buffer platform for equipment in under-water explosion[J]. Science and Technology Review, 2012, 30(18): 37-40. http://www.cnki.com.cn/Article/CJFDTotal-KJDB201218023.htm
[5]	张玮.利用浮动冲击平台考核舰用设备抗冲击能力的数值仿真研究[J].振动与冲击, 2010, 29(12): 60-63. http://jvs.sjtu.edu.cn/CN/abstract/abstract1015.shtml Zhang Wei. Numerical simulation for shock resistivity of shipboard equipment on floating shock platform[J]. Journal of Vibration and Shock, 2010, 29(12): 60-63. http://jvs.sjtu.edu.cn/CN/abstract/abstract1015.shtml
[6]	Kwon J I, Lee S G, Chung J H. Numerical simulation of MIL-S-901D heavy weight shock test of a double resiliently mounted main engine module[J]. Journal of the Society of Naval Architects of Korea, 2005, 42(5): 499-505. doi: 10.3744/SNAK.2005.42.5.499
[7]	梁卓中, 陈立贤.应用美规MIL-STD-901D标准水中爆震平台进行船舰重装备之抗震能力分析[J].科学与工程技术期刊, 2009, 5(2): 35-50. http://www.airitilibrary.cn/Publication/alDetailedMesh?DocID=18166563-200906-200908050043-200908050043-35-50 Liang Zhuo-zhong, Chen Li-xian. Heavyweight shock-resistant shipboard equipment: A numerical study using an MIL-STD-901D floating shock platform[J]. Journal of Science and Engineering Technology, 2009, 5(2): 35-50. http://www.airitilibrary.cn/Publication/alDetailedMesh?DocID=18166563-200906-200908050043-200908050043-35-50
[8]	杨莉, 杜俭业, 杜志鹏, 等.水下爆炸冲击作用下浮动冲击平台试验安全性[J].噪声与振动控制, 2012(6): 23-25. http://www.cnki.com.cn/Article/CJFDTotal-ZSZK201206007.htm Yang Li, Du Jian-ye, Du Zhi-peng, et al. Security analysis for floating shock platform test subjected to underwater explosion[J]. Noise and Vibration Control, 2012(6): 23-25. http://www.cnki.com.cn/Article/CJFDTotal-ZSZK201206007.htm
[9]	张爱国.大型舰船水下爆炸结构安全性研究[D].哈尔滨: 哈尔滨工程大学, 2008: 66-70.
[10]	朱石坚, 何琳.船舶机械振动控制[M].北京: 国防工业出版社, 2006: 17-32.
[11]	Zhang A-man, Zhou Wei-xing, Wang Shi-ping, et al. Dynamic response of the non-contact underwater explosions on naval equipment[J]. Marine Structures, 2011, 24(4): 396-411. doi: 10.1016/j.marstruc.2011.05.005
[12]	Li J, Rong J L. Experimental and numerical investigation of the dynamic response of structures subjected to underwater explosion[J]. European Journal of Mechanics, 2012, 32: 59-69. http://www.sciencedirect.com/science/article/pii/S0997754611000951