Abstract:In order to solve secondary impact problem of displacement restrictors in the process of under impact load, the mathematical model of a shock isolation system with double displacement restrictors is established. The analytical solution to the shock isolation system is obtained by using a piecewise linear Duhamel integral method, and compared with results via step velocity method. Effects of displacement restrictors’ parameters (stiffness ratio, damping ratio and assembled clearance) on shock response are studied and applications of Multi-island Genetic Algorithm on parameter optimization are discussed. The results prove that proper damping ratio of displacement restrictor could provide effectively impact resistance of the system, but the equations could not be solved by step velocity method as damping ratio major. Besides, by using Multi-island Genetic Algorithm, it could obtain optimal parameter of displacement restrictor adjusted to shock isolation request by proposing reasonable optimization strategy.
张春辉1,汪玉2,吴一红2,温肇东2. 双限位器隔离系统的冲击响应计算及参数影响分析[J]. 振动与冲击, 2015, 34(9): 125-130.
ZHANG Chun-hui1, WANG Yu2, WU Yi-hong2, WEN Zhao-dong2. Shock response calculation and affect of parameters on shock isolation system with double displacement restrictors. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(9): 125-130.
[1]. Scavuzzo R J,Pusey H C. Naval Shock Analysis and Design [M]. Falls Church:The Shock and Vibration Information Analysis Center,2000、
[2]. 汪 玉, 华宏星. 舰船现代冲击理论及应用[M]. 北京: 科学出版社, 2005:1-68.
Wang Yu, Hua Hong-xing. The modern shock theory and Application[M]. Beijing, Science Press, 2005:1-68.
[3]. 张志,张兆会,董森,等.橡胶双层减振与隔振系统冲击响应研究[J].振动与冲击,2013,32(23):126-129.
ZHANG Zhi,ZHAO Zhao-hui,DONG Sen,et al.Shock response of a rubber double-deck vibration isolation system[J].Journal of Vibration and Shock,2013,32(23): 126 -129.
[4]. Rudolph J S,Henry CP. Naval shock analysis and design [M]. The shock and vibration information analysis center booz,Allen and Hamilton, inc. USA, 2000.
[5]. 赵应龙,何琳,黄映云. 限位器对隔振系统抗冲击性能的影响[J]. 振动与冲击,2005,27(6):71-76.
Zhao Ying-long, He Lin, Huang Ying-yun, Wang Yu. Influence of the displacement restrictor on shock resistance performance of vibration isolation system [J]. Journal of Vibration and Shock, 2005, 27(6): 71-76.
[6]. 唐斯密,赵存生,朱石坚. 刚度分段线性系统隔振抗冲击优化设计研究[J]. 噪声与振动控制,2010(1):27-32.
Tang Si-mi, Zhao Cun-sheng, Zhu Shi-jian. Study on optimal design for vibration and shock isolation of piecewise linear stiffness system[J]. Noise and Vibration Control, 2010(1): 27-32.
[7]. 马炳杰,沈建平,王志刚. 弹性限位器对双层隔振装置抗冲击性能影响分析[J]. 噪声与振动控制,2011(6):72-75.
Ma Bing-jie, Shen Jian-ping, Wang Zhi-gang. Affect of displacement restrictor on shock resistance performance of double-stage vibration isolation system[J]. Noise and Vibration Control, 2011, (6): 72-75.
[8]. 翁雪涛,朱石坚,何琳. 限位器抗冲击计算[J]. 中国造船,2002,43(2):85-89.
Weng Xue-tao, Zhu Shi-jian, He Lin. Calculation of Shock Resistance Performance of Restrictor[J]. Ship Buliding of China, 2002, 43(2): 85-89.
[9]. 石秀华, 孟祥众, 杜向党. 基于多岛遗传算法的振动控制传感器优化配置[J]. 振动、测试与诊断, 2008(1): 62-65.
Shi Xiu-hua, Meng Xiang-zhong, Du Xiang-dang. Application of MIGA to optimal disposition of sensors in active control [J]. Journal of Vibration, Measurement &Diagnosis, 2008(1): 62-65.
[10]. 宋昕, 谷正气, 张清林. 基于多岛遗传算法的湍流模型优化研究[J]. 湖南大学学报(自然科学版),2011, 38(2): 23-29.
Song Xin, Gu Zheng-qi, Zhang Qing-lin. Study of the Turbulence Model Optimization Based on Multi-island Genetic Algorithm[J]. Journal of Hunan University(Natural Sciences), 2011, 38(2): 23-29.
[11]. 单树军,何琳. 粘性阻尼在硬特性刚度隔冲系统中的作用[J]. 振动与冲击,2008,27(6):96-98.
SHAN Shu-jun, He Lin. effect of viscous damping in a harden stiffness shock isolation[J]. Journal of Vibration and Shock, 2008,27(6):96-98.