The Modular Design Research On Active-passive Wave Compensation For Ship-mounted Crane

In reality production process,ship-mounted cranes are often operated in harsher ocean environment.Floating production systems such as working ships will inevitably be affected by wave fluctuations,which would interfere the safe operation of ship-mounted cranes,such as causing collision with ground or other targets.At present,most domestic ship-mounted cranes do not have a wave compensation function.Guided by the idea of modularization,the compensation device is designed for reducing the interference of waves,which is convenient in ship modification.The main contents of this paper are as follows:Firstly,this paper summarizes the existing research results on wave compensation at home and abroad.On this basis,according to the marine environment of ship-mounted cranes,the active and passive compensation schemes are designed.After that,the selection of the important structural components of the compensation module is completed.The preliminary drawing of a three-dimensional model is completed by SolidWorks software.According to the results of the type selection design,the strength of important components are checked by finite element analysis,and the response surface method is used to optimize the size of the structure.After optimization,the dimensions of the important components of the wave compensation module are proved enough to meet the strength requirements.Finally,the simulation model of the wave compensation device was established by AMESim software,and then the compensation effect of the device is analyzed.The research results show that compensation module can effectively reduce the displacement fluctuation of the weight,in which the ship's wave cycle of 15 seconds,the displacement range of 0.6 meters and the lifting weight is 80 t.The compensation effect can reach 90%.