船舶辅机浮筏半主动非线性隔振系统振动特性分析
船舶辅机浮筏半主动非线性隔振系统振动特性分析
MR (magneto-rheological) dampers in semi-active control have rapid variated damping properties with very low power requirements. A revised Bingham model is used to describe the nonlinear damping force for MR damper of auxiliary floating raft isolation system in ship. The model with hysteresis characteristics is simple in expression and convenient for theoretical analysis. Nonlinear dynamic equation of the floating raft isolation system is established based on the model. A theoretical solution of dynamical response and vibration transmissibility for the ship floating raft semi-active isolation system are obtained by average method, which is verified by numerical solution with Matlab. In addition, the effect of model parameters of MR damper on the system爷s vibration isolation is studied by taking transmissibility as index. The research results provide theoretical basis for designing the nonlinear vibration isolation system of auxiliary floating raft and then the vibration can be controlled more effectively.
Average method, Floating raft, MR damper, Nonlinear, Semi-active, Vibration isolation
583-590
Fang, Yuan Yuan
47f6d488-187a-4927-b429-1ce7d8677695
Xia, Zhao Wang
092b89f4-cad9-4985-8ac2-63c6cecd36e5
Waters, T.P.
348d22f5-dba1-4384-87ac-04fe5d603c2f
Zuo, Yan Yan
9788d131-d64c-4159-be61-0f859fe46dca
1 May 2019
Fang, Yuan Yuan
47f6d488-187a-4927-b429-1ce7d8677695
Xia, Zhao Wang
092b89f4-cad9-4985-8ac2-63c6cecd36e5
Waters, T.P.
348d22f5-dba1-4384-87ac-04fe5d603c2f
Zuo, Yan Yan
9788d131-d64c-4159-be61-0f859fe46dca
Abstract
MR (magneto-rheological) dampers in semi-active control have rapid variated damping properties with very low power requirements. A revised Bingham model is used to describe the nonlinear damping force for MR damper of auxiliary floating raft isolation system in ship. The model with hysteresis characteristics is simple in expression and convenient for theoretical analysis. Nonlinear dynamic equation of the floating raft isolation system is established based on the model. A theoretical solution of dynamical response and vibration transmissibility for the ship floating raft semi-active isolation system are obtained by average method, which is verified by numerical solution with Matlab. In addition, the effect of model parameters of MR damper on the system爷s vibration isolation is studied by taking transmissibility as index. The research results provide theoretical basis for designing the nonlinear vibration isolation system of auxiliary floating raft and then the vibration can be controlled more effectively.
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Published date: 1 May 2019
Alternative titles:
Vibration characteristic analysis of floating-raft semi-active isolation system based on MR damper
Keywords:
Average method, Floating raft, MR damper, Nonlinear, Semi-active, Vibration isolation
Identifiers
Local EPrints ID: 433655
URI: http://eprints.soton.ac.uk/id/eprint/433655
ISSN: 1007-7294
PURE UUID: 5b0bf0b9-6793-4d44-a1fa-1e0fd6c5a437
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Date deposited: 29 Aug 2019 16:30
Last modified: 16 Mar 2024 03:31
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Author:
Yuan Yuan Fang
Author:
Zhao Wang Xia
Author:
Yan Yan Zuo
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