Experimental study on the shock resistance performance of the semiactive floating raft

GENG Chao1, LI Qianru1, TANG Jie1, WENG Hao2, ZHU Fuhong3, WENG Zeyu1

(1.College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;
2.Guiyang Urban Rail Transit Co. Ltd., Guiyang 550081, China; 3.Chinese Peoples
Liberation Army 73021 Troops, Hangzhou 310023, China)

Abstract: Aiming at improving the shock resistance performance of facilities installed on submarines，the shock resistance performance of the semiactive floating raft system installed dampers controlled by switch was studied by test. The test device of semiactive floating raft was established, when shock was apply to the foundation of the test device, the acceleration responses of the unit and foundation were tested under the controllable damper on and off states respectively, and the shock resistance performances of semiactive floating raft under different damping states were analyzed and compared. The results indicate that the semiactive floating raft has good shock resistance performance, the acceleration response amplitude of unit under the off state is smaller when the controllable dampers are in high damping state, the acceleration response of the unit decrease more quickly when the controllable dampers are in low damping state, and its possible to improve the shock resistant properties of semiactive floating raft by controlling the damping state of controllable dampers.

Key words: floating raft; semiactive control; shock resistance; test