Design and Simulation Analysis of Anti-Swing Device for Marine Crane Based on Magnetorheological Technology
Aiming at the problems that marine cranes are difficult to locate due to coupling incentives when operating at sea.The magnetorheological damper(MRD)with semi-active control characteristics is introduced into the field of marine crane anti-swing,and a mechanical anti-sway device with simple mechanical structure,continuously adjustable damping and fast response is designed.The MRD is designed for specific ship conditions,and the rationality of the magnetic circuit design of the MRD is verified by the simulation.The three-dimensional dynamic model of ship-crane-lifting point-anti-swing device-payload is established.Based on ADAMS,the virtual prototype is built and simulated with MATLAB,which verifies the feasibility of the scheme.The results show that the anti-swing device has good effect on the anti-swing of the payload,under the set sea conditions,the swing amplitude of the lifting load in-plane decreases by 85％and the swing amplitude of the lifting loadoff-plane decreases by 87％.The research results can provide new references for reducing the mechanical swing of marine cranes.
marine cranemagnetorheological technologykinematic and dynamic modelanti-swing
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