Study on distributed measurement and control system for 12000kN marine component mechanical properties test platform

Mechanical property test of marine components has the characteristics of complicated structure, diverse testing resources, varied testing environment, high testing cost and long cycle. Firstly, the transfer function of the servo control system is established on the basis of considering the non-linear factors of the test platform. Secondly, a measurement and control system framework combining the centralized control and the distributed control is proposed. Thirdly, hardware and software design of the distributed measurement and control system for the test platform is designed. Finally, a measurement and control system of the test platform is developed, and a 2000kN tow cable tensile experiment was carried out. The results show that the force measurement error of the system is less than ± 0.5%, and the displacement measurement error is less than ± 0.1%.