Vibration Response Analysis of Float Tide Gauge Based on Matlab Simulink

Aiming at the problem that the accuracy of observation data is affected by the vibration generated by the floating tide gauge under the excitation of waves and sailing, this paper builds a mechanical model of the spring vibration system with two degrees of freedom based on the tidal observation principle and the mechanical characteristics of the float-rope wheel-heavy hammer, and studies the influence of external stiffness on the vibration of the system. The dynamics equation of the system was established and the relationship between the stiffness and natural frequency was deduced. According to the F- K method and the micro wave theory, the wave force of the float is analyzed and the equation of its force motion is obtained. Finally, Matlab Simulink was used to calculate the system model, and the vibration response of the heavy hammer and float was obtained. The vibration response is simple harmonic motion, and the stiffness will reduce the amplitude and speed of vibration. When the stiffness is greater than 4000N/m, the maximum vibration amplitude at the hammer is less than lcm, which meets the site application requirements.