自适应隔离器系统抗冲击特性研究
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摘要
基于将传统减振元件与智能元件并联的思想,应用现有减振元件钢丝绳弹簧和智能出力元件磁流变阻尼器设计动力学特性智能可控的自适应隔离器,可以同时解决中低频减振和高频抗冲击的问题。对该系统竖直方向上的抗冲击特性进行数值仿真和物理实验研究;结果表明,自适应隔离器系统具有良好的抗冲击特性,尤其是在冲击载荷较强,系统会发生二次碰撞时,系统的抗冲击效果明显优于传统减振元件。
Based on the idea that combining traditional vibration-reduction components parallely with intelligent components,a new approach to the design of isolator is presented.With the application of maganetorheological damper(MR damper)and wire spring damper,an adaptive isolator is designed,whose dynamic characteristics is changeable and controllable so that it can reduce vibration and also can resist impact.It gives out the experimental and numerical research on the isolator's impact-resistance characteristics on vertical direction which is working direction.The result shows that the adaptive isolator has a better impact-resistance performance than traditional components obviously,especially when impact loads are intense and the second impact occurring.
Based on the idea that combining traditional vibration-reduction components parallely with intelligent components,a new approach to the design of isolator is presented.With the application of maganetorheological damper(MR damper)and wire spring damper,an adaptive isolator is designed,whose dynamic characteristics is changeable and controllable so that it can reduce vibration and also can resist impact.It gives out the experimental and numerical research on the isolator's impact-resistance characteristics on vertical direction which is working direction.The result shows that the adaptive isolator has a better impact-resistance performance than traditional components obviously,especially when impact loads are intense and the second impact occurring.
引文
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[2]朱海潮,何琳.用钢丝绳隔振器进行船舶主机隔振[J].船海工程,2002,147(4):12-15.ZHUHaiChao,HELin.Vibrationisolating of the marine main propulsion engines bythe wire rope isolator[J].Ship and Ocean Engineering,2002,147(4):12-15.
[3]吕胜利,姚磊江,童小燕.复合材料结构振动控制方法研究[J].机械强度,2007,29(2):338-340LVShengLli,YAOLeiJiang,TONG XiaoYan.Study on vibration controll method of composite material structures[J].Journal of Mechanical Strength,2007,29(2):338-340(In Chinese).
[4]Ribakov Y,Gluck J.Selective controlled base isolation systemwith mag-netorheological dampers[J].Earthquake Engng Struct.Dyn.,2002,31(6):1301-1324.
[5]周云,徐龙河,李忠献.半主动磁流变阻尼控制结构的地震反应分析[J].地震工程与工程振动,2000,20(2):107-111.ZHOUYun,XULongHe,LI ZhongXian.Analysisfor seismic responses of semi-active magnetorheological damping control structures[J].Earthquake Engineeringand Engineering Vibration,2000,20(2):107-111(In Chi-nese).
[6]关新春,欧进萍.磁流变耗能器的阻尼力模型及其参数确定[J].振动与冲击,2001,20(1):5-8.GUAN XinChun,OU JinPing.Magnetorheological damper’s damping force model and the definition of its parameter[J].Journal of Vibration and Shock,2001,20(1):5-8(In Chinese).
[7]欧进萍,关新春.磁流变耗能器及其性能[J].地震工程与工程振动,1998,18(3):74-81.OUJinPing,GUANXinChun.Magnetorheological damper and its perfor-mance[J].Earthquake Engineering and Engineering Vibration,1998,18(3):74-81(In Chinese).
[8]姚熊亮,邓忠超,张明.船用智能抗冲击隔离器动力学数值试验分析[J].哈尔滨工程大学学报,2007,28(2):128-132.YAO XiongLiang,DENGZhongChao,ZHANG Ming.Numerical and ex-perimental analysis of a smart impact-resistance and vibration-reduction isolator usedin naval ships[J].Journal of Harbin Engineering University,2007,28(2):128-132(In Chinese).
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