Electromechanical Coupling Modeling And Performance Research Of The Drive System Based On Model Order Reduction

As a key functional component of NC machine tool,the performances of the feed drive system directly affect the machining accuracy and cutting efficiency of the machine tool.The mechatronic model of feed system can completely describe the structural characteristics of the original model,and reflect the static-dynamic properties and motion characteristics.This paper presents a efficient methodology to model and analysis rigid-flexible and mechatronic model.The proposed method can be used to study the influence factor of the feed system of precision horizontal machining center,including their structural parameters and interaction of mechatronic parameters.The main works are as follows:The Model Order Reduction(MOR)model of machine tool structures is modeled.The assembly of the new complete state-space systems is carried out in MATLAB/Simulink.In order to quantify the benefits obtained by a redctioned simuliation,the analysis is compared with in ANSYS.The parametric dynamic model of the motor-screw drive system is modelled using the lumped mass method.The mathematical model of servo system is established in MATLAB/Simulink.Considering the MOR model,the rigid-flexible mechatronic model of the feed system is constructed based on input-output relationship of the servo system and mechanical system.Considering the influence factors of dynamic performance of feeding system,some evaluation criteriais is studyed to guide the evaluation of feed system dynamic performance.Based on simulation analysis,the influence law of the mechanical structure parameters and electromechanical coupling parameters on the dynamic characteristics of the feed system is developed.