CAJ | 학술논문

针对获取刀尖频响函数的动柔度耦合子结构分析方法（RCSA）精度受子结构端点频响函数及各结合面参数影响，各子结构间结合面参数辨识方法研究尚未成熟之问题，研究利用传递矩阵法与RCSA耦合算法预测刀尖频响函数，利用PSO优化算法最小化理论及实验结果，辨识主轴-刀柄与刀柄-刀具结合面参数。比较结果发现，预测、实验刀尖频响函数一致性较好，说明该辨识方法能有效识别主轴-刀柄与刀柄-刀具结合面参数。
침대획취도첨빈향함수적동유도우합자결구분석방법（RCSA）정도수자결구단점빈향함수급각결합면삼수영향，각자결구간결합면삼수변식방법연구상미성숙지문제，연구이용전체구진법여RCSA우합산법예측도첨빈향함수，이용PSO우화산법최소화이론급실험결과，변식주축-도병여도병-도구결합면삼수。비교결과발현，예측、실험도첨빈향함수일치성교호，설명해변식방법능유효식별주축-도병여도병-도구결합면삼수。
Receptance coupling substructure analysis (RCSA)technique is the major approach to obtain tool tip frequency response functions (FRFs)of machine tools,and its precision is primarily controlled by end FRFs of each substructure and parameters of each interface between two substructures.Currently,there isn't a mature algorithm to identify parameters of each interface.Here,the transfer matrix method and RCSA were used to predict tool tip FRFs,and PSO algorithm was used to determine the parameters of spindle-holder and holder-tool interfaces by minimizing the difference between the predicted and the measured tool tip FRFs before the parameteric identification.Comparison between the predicted results and the measured ones after the parametric identification showed that they agree well and demonstrated that the proposed identification method is effective to recognize parameters of spindle-holder and holder-tool interfaces.