Of Ct ¡õ Spring Actuator System Dynamics Simulation Study

The project studied in the paper roots in the demonstration project of YK-CIMS at Yunnan Switches Factory. The paper applied virtual prototype technology to the design of spring operating mechanism used in circuit breaker, built kinematics and dynamics model of CTD-110 spring operating mechanism under open and close operation, gave kinematics and dynamics differential equation of open and close operation system of spring operating mechanism and got the solution via the software of MATLAB. At the same time, accurate 3D-solid model of the spring operating mechanism was built via the software of UG and successfully imported to the simulating software, ADAMS. The virtual prototype of spring operating mechanism was built under ADAMS, which performed dynamic simulating analysis to verify the accuracy of simulating analysis through comparing with theoretical analysis results, got some key data of the mechanism under the operation which supplied basis for optimizing and refining the mechanism.Study shows that applying virtual prototype technology can quickly build analytic model of spring operating mechanism and simulate its real-time movement process, which can greatly reduce expensive and time-consuming manufacture of spring operating mechanism and test stage and gives our study realistic meaning and enormous engineering application value. Meanwhile, this paper supplies methods and applying experience for application of virtual prototype in the process of new products development, and supplied effective methods for shortening the period for developing new products, reducing development costs and improving products quality.