Research Of The Control System Of The Large Test Platform Of Marine Component Mechanical Properties

The large test platform of marine component mechanical properties is a kind of multifunctionaland high precision tensile testing machine.It can realize many kinds of ship member ofmechanics performance test,such as the emergency towing rope, the chain classes, the ropeclasses etc.According to the characteristics of the test platform and related technicalrequirements, and both at home and abroad about testing machine control system, theresearch development of test platform measurement and control system, this topic arestudied about the control system of platform.Its control system using servo valve and relief valve combination control buildingelectro-hydraulic servo hydraulic system, the use of the data acquisition card withdistributed input/output module to realize the system hardware design, using VB realize thehuman-computer interaction, the system can complete smoothly platform test processcontrol and data analysis work, meet the platform multi-function, high precision designrequirements.The main content of this article includes:1. To platform control system as the research object,using modern control theory to controlsystem of the theoretical modeling, and the system load performance and feedbackcompensation performance was analyzed. Through the inertia load and elastic load cases ofdisplacement control and force control analysis, put forward in order to improve the systemperformance and the realization method of load stability.2. Based on the system pressure compensation and flow compensation performanceanalysis, the system control accuracy was verified, and at the same time using PID controlregulation function simulation verified the system feedback compensation performancestability and ensured that the system control precision.3. Domestic and foreign tester measurement and control system based on typicalcontrol method, combined with the measurement and control system for platform of thetheoretical analysis and their own characteristics, to platform mechanical structure designcharacteristics and test process functions as the starting point, the platform of the measureand control system in the overall design scheme in the research.4. To measurement and control system overall design scheme for framework,combining with the system related to the design requirements, the comprehensive consideration, the system hydraulic power part of the design research, using distributedmodule control method to realize the system hardware structure design, through the VBlanguage to realize the interactive and test data analysis.5. Based on system theory research work, the control system of the commissioning,summarizes the system debugging process, the platform test process of actual controloperation, verified the feasibility of the control system and the practical application value.