Multidisciplinary co-simulation and design optimization method for electromechanical servo system based on surrogate model

Abstract

The invention discloses a multi-disciplinary co-simulation and design optimization method for an electromechanical servo system based on an agent model. Optimized objective function and constraint conditions; (2) Establish load object model, motor model, transmission mechanism model and control driver model to form a high-precision dynamic characteristic simulation model of electromechanical servo system; (3) Choose from the above models is still not enough The determined or interested parameters are the design variables for dynamic characteristic performance optimization, given the design space, constructing the proxy model of the dynamic characteristics of the electromechanical servo system; (4) Searching the design space for the proxy model until the optimal dynamic performance index is obtained. Excellent solution. The invention solves the problem that the dynamic characteristic simulation model of the system-level electromechanical servo system cannot accurately represent the nonlinearity of key parameters.

Description

technical field [0001] The invention belongs to the technical field of multidisciplinary joint simulation of electromechanical servo systems, in particular to a method for multidisciplinary joint simulation and design optimization of electromechanical servo systems based on agent models. Background technique [0002] The dynamic characteristic analysis of the electromechanical servo system is a multi-disciplinary complex coupling analysis problem involving machinery, energy management, electromagnetics, power electronics and control. It is difficult to express product performance indicators through parameter analysis, and it is difficult to divide them from space and time to form a definite Design boundaries and constraints, so that the existing design process can only optimize product performance through repeated iterations of design parameters. Mature 3D analysis software has created the prosperity of "simulation-driven design". Using a variety of professional 3D analysis ...

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Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a multi-disciplinary co-simulation and design optimization method for the electromechanical servo system based on the proxy model, and to solve the problem that the existing electromechanical servo system simulation technology cannot take into account the non-linearity of key parameters Excessive time-consuming problem of accurate description of characteristics and multi-disciplinary co-simulation

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