Analysis And Research On Anti-rolling Performance Of Marine Gyro

This paper designs a new type of ship anti-rolling gyro based on the existing six-degreesof-freedom platform and gyro anti-rolling instrument display model,aiming to study and analyze its anti-rolling performance and laws,and to derive the momentum of the gyroscope.The general relationship between the size of the moment and the tonnage of the ship to be satisfied provides a data reference for the subsequent production matching of the gyroscope and the ship.The main contents of the full text include:(1)A three-dimensional non-linear equilibrium moment model is established for the ship with a coupling relationship,the anti-rolling gyroscope,and the wave.The model calculations show that under the action of external torque,the high-speed rotating gyroscope rotor enters the action,and the resulting righting moment counteracts part of the external torque and acts as a stabilizing effect.It is proved that the gyro-reducing device is applied on ships.Can produce the effect of anti-rolling effect.(2)Based on the existing gyroscope display model available in the laboratory,under the principle of minimizing experimental errors,parts are selected and purchased,and processing and assembly are performed to obtain a gyro-type roll reduction device model.According to the actual anti-rolling effect of the model,an unmanned boat is selected as the research object for simulation experiments to carry out subsequent simulation experiments.(3)Perform dynamic simulation experiments.Using Solidworks to create a threedimensional model of the gyro anti-roll device,then replace or simplify the components of the model that are likely to cause redundant constraints.At the same time,considering the research object unmanned boat in this paper,it is optimized and modeled,and the unmanned model is combined with the model of the gyro-reducing device and imported into Adams for simulation.In Adams,different sense wave heights and periods are set to simulate different levels of waves and the overall model is dynamically simulated.Analysing the experimental data obtained,the preliminary relationship between the momentum moment of the marine gyroscope and the tonnage of the ship can be obtained.(4)Conduct physical experiments.The gyro anti-roll device model is fixed on the sixdegree-of-freedom platform,and the six degrees of freedom platform’s roll angle and roll period simulate different levels of real-time waves.Considering that there is a certain error in the physical experiment,increase the synchronous simulation experiment.According to the model of the gyro anti-rolling device and the size of the six-degree-of-freedom platform,the model was built on an equal scale and a dynamic simulation experiment was conducted.Comparing with the results of physical experiments and simulation results,the laws of antirotation of the gyroscope are further analyzed.(5)Carry out sea trials on ships.Ships with gyroscopes were subjected to sea trials to verify their reliability and practicality.The results of simulation experiments,physical experiments,and sea trials prove that the device can play a good role in reducing rollover under certain wave levels.Analyze the simulation experiment and the physical experiment,combined with the ship trial experience,draw the relationship between the magnitude of the momentum moment of the gyro anti-roll device and the ship tonnage.