Dynamics Analysis And Simulation Of Deep Sea Buoy Upper Profile Measuring Platform

The ocean environment stereo monitoring technology is an important component of marine science and technology,and the deep sea profile measuring system is an essential part of the stereo monitoring.The section measuring system controls the up-down movement of the lifting platform by the underwater winch equipped with the main floating body,and uses the hydrographic measuring instrument on the platform to realize the fixed-point measurement of the sea water section.Through the lifting speed and the frequency of data acquisition,the measurement of different resolutions is realized.When the platform moves to the surface of the water,the data will be returned to the shore base station via the Beidou module.First of all,this paper introduces the related ocean profile monitoring technology at home and abroad,and analyzes the basic functions and components of the profile measurement system.At the same time,several typical profile measuring systems are introduced,and their applicable environment and working conditions are analyzed.This paper puts forward the significance of this research by comparing their respective development status and differences.At the same time,the importance and value of lifting platform in the system are introduced.The main research goal is further defined,and the technical route and research content of this research work are put forward.In the related research of lifting platform,this paper firstly explains the composition and important part of the whole system,and develops the static analysis according to the characteristics of each component.At the same time,the statics,attitude and force of the lifting platform,mooring line and main floating body are analyzed emphatically.Then,the dynamic analysis of the lifting platform,mooring line and main floating body is carried out.According to the different sea conditions and combined with the actual work flow,different stress stages are determined,and the corresponding global dynamic equations are given.Then,the initial conditions,boundary conditions,calculation methods and steps needed to solve the equation are given.Through the related mechanical analysis model establishment and the solution method introduction,has carried on the statics simulation,the motor movement simulation and the dynamics simulation.Given the system in static state system,the main body position and attitude of floating key nodes stress;given to meet the normal range of platform working angle of motor speed and appropriate suggestions are given;the upper motor motion system with force.Finally,in the National Environmental Technology Center Laboratory of marine power according to the specific conditions of the platform model of motor experiment,verified in motor speed under the corresponding tilt angle and the simulation platform is in good agreement with the corresponding results,verify the correctness of the dynamics simulation.