第五课：金属橡胶冲击隔振系统试验.pdfVIP

24 7 Vol. 24 No. 7 2009 7 Journal of Aerospace Power Jul. 2009 : 1000- 8055( 2009) 07-1518-05 1 1 1 2 闫 辉, 姜洪源 , 刘文剑 , 郝德刚 ( 1 , 150001; 2 , 15000 1) : , . , , , , . , , . : ; ; ; : T H 1131 : A Experimental research on metal rubber shock isolation system 1 1 1 2 YAN H ui , JIANG H on -yuan , LIU Wen-Jian , HAO De- an ( 1School of M echatronic En ineer in , H arbin Institute of T echnolo y, Harbin 150001, China; 2School of Astronautics, H arbin Institute of T echnolo y, Harbin 150001, China) Abstract: The dampin performance of metal rubber ( M R) ant-i shock isolator depends on the dry friction and elastic defor mation that dissipates vibr atin ener y . An M R isolator w as investi ated to satisfy the need of shock isolation system of some aircrafts by the shock experiments. The results show that the max imal accelerator response and the shock isolation coefficient increase w ith the shock duration, w hile the shock isolation coefficient is affected by shock load. It is concluded that under smaller shock load, the shock isolation coefficient of M R isolator decreases w ith the increase of external load, how ever, w hen the load exceeds a certain value, the shock isolation coefficient increases w ith external load. Key words: metal rubber ( M R) ; ant-i shock; isolator; isolation coefficient [ 4-5] ,