Development and calibration of large range flexible joints six-component force platform

In this article, flexible joints are applied to the structure design of large range six-component force platform, and the structure scheme of the large range six-component force platform with flexible joints is proposed. Through the structural parameters optimization design, statics analysis and modal analysis of six-component force platform, the new model large range 6-UPUR six-component force platform with flexible joints is manufactured. The static calibration hardware system based on large-tonnage hydraulic loading principle and the static calibration software system including data acquisition, processing, calibration and performance analysis are developed. Meanwhile, the six-dimensional force-torque loading project is given, the static nonlinear calibration and performance analysis of the six-component force platform is achieved by using method of RBF neural network, and the experimental results show that the developed six-component force platform in this paper has higher precision.