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[CN 201810965045.0] Multi-objective Optimization Method for Eight-link Mechanical Press Based on NSGA-II Algorithm
[CN 201810965045.0] Title of Multi-objective Optimization Method for Eight-link Mechanical Press Based on NSGA-II Algorithm: Application Number of Multi-objective Optimization Method for Eight-link Mechanical Press Based on NSGA-II Algorithm: CN 201810965045.0 Applicant: Zhejiang University Application Date: 2018-8-23 Patent Type: Application for Invention The present invention provides a multi-objective optimization method for eight-link mechanical press based on NSGA-II algorithm, including determining optimization objectives, design variables and constraints, and establishing mathematical models; simplify the eight-link mechanism model; Set the initial design variables and the initial eccentric body speed, conduct kinematic analysis on the eight-link mechanism model, and obtain kinematic parameters including slider stroke, slider speed and slider acceleration. According to the kinematic parameters and press tonnage information, conduct dynamic analysis on the eight-link mechanism model to obtain crank torque. Use NSGA-II algorithm to optimize the slider speed fluctuation and maximum crank torque, solve the multi-objective optimization mathematical model and obtain the Pareto optimal solution set of design variables. The design variables obtained by the present invention are highly accurate, optimized quickly, and reduce the design and development time of the enterprise.
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