Simulation study of vibration isolation performance of wave adaptive unmanned vessels
To reduce the impact of wave fluctuations on unmanned boats,a wave-adaptive unmanned boat with a vibra-tion isolation system is designed and its vibration reduction performance is analyzed.The main parameters of the vibration isolation system,namely the relative damping coefficient and the natural frequency,are solved.The unmanned boat is sim-plified into a four-degree-of-freedom dynamic model,and the motion differential equation of the model is derived according to Newton's second law.Taking the wave height curve under the third-level sea state obtained by the random wave theory as the input signal,the solution model is built and solved by using the Simulink module of Matlab software.The displacement of the floating cylinder,the displacement of the working platform and the rolling motion are simulated and calculated.By comparing and analyzing,it is found that the wave-adaptive unmanned boat has good vibration reduction performance.
万方数据
维普
