Research On Heavy Load Deploying And Retracting System With Tension Reduction

Tension winch is widely used in offshore platform towing equipment,which is characterized by:load carrying capacity is very large,in the start,acceleration,deceleration and other dynamic process,the cable tension there is a substantial shock,stability is poor,there is great Degree of security risks,and the tension on the cable has a serious impact on the cable effect.Therefore,how to make the system to ensure the stability of the cable tension in the course of work,effectively carry out cable is the focus of the current winch system.In view of the above problems,combined with the actual demand,this paper takes the large inertia load winch system as the research object.Based on the theoretical analysis,the mechanical structure of the existing experimental winch system is improved to realize the release of large tension.In the aspect of hydraulic control,the dynamic performances of the system is analyzed by means of mathematical modeling and software simulation,and a reasonable control strategy is designed to optimize the control system.The paper analyzes and summarizes the types and control methods of the existing tension winch,and then puts forward the hydraulic control scheme which is suitable for the subject under the analysis of the characteristics and application of various control methods.And according to the actual task demand,respectively from the tension control,speed regulation of the two systems to optimize the design.According to the simulation results,the dynamic performance of the system is analyzed.On this basis,the PID control strategy is proposed.According to the different parameters of PID,a specific adjustment scheme is designed to improve the system control precision,improve the control precision and System response time.At the end of the paper,the stress control and speed regulation of tension control system are experimentally verified.During the experiment,the control scheme and control strategy of the system are further improved by continuously optimizing the control parameters.Experiments show that the tension system can express the tension and speed better,with high control precision and good dynamic performance.