CAJ | 학술논문

鉴于圆柱度误差会影响圆柱形零件的装配条件极其精密产品的性能，提出了一种用于圆柱类零件圆柱度建模及其误差分析的方法，首先利用L-F方程和群粒子优化算法分别对圆柱度误差进行建模和评估，然后利用Monte Carlo模拟法对轴和孔的虚拟装配发展而来的接触法以确定其位置精度。圆柱度误差和谐波次数(即谐波波瓣数)对零件位置精度的影响将会进行详细的分析，并通过对已有文献中的数据进行仿真试验和比较。结果表明在两个圆柱形工件间的圆柱度误差对位置精度的影响比圆度误差更为显著，并且证明上述建模和评估方法的有效性；当通过测量获得被加工零件的设计公差和几何误差后，该方法还能够快速地预测出相应的位置精度。
감우원주도오차회영향원주형령건적장배조건겁기정밀산품적성능，제출료일충용우원주류령건원주도건모급기오차분석적방법，수선이용L-F방정화군입자우화산법분별대원주도오차진행건모화평고，연후이용Monte Carlo모의법대축화공적허의장배발전이래적접촉법이학정기위치정도。원주도오차화해파차수(즉해파파판수)대령건위치정도적영향장회진행상세적분석，병통과대이유문헌중적수거진행방진시험화비교。결과표명재량개원주형공건간적원주도오차대위치정도적영향비원도오차경위현저，병차증명상술건모화평고방법적유효성；당통과측량획득피가공령건적설계공차화궤하오차후，해방법환능구쾌속지예측출상응적위치정도。
The circular and cylindrical features are fundamental geometric features in machines. Cylindricity error affects the fitting conditions of cylindrical components and impacts the performance of the precision products. In this paper, the cylindricity error was modeled using L-F functions and evaluated by particle swarm optimization algorithm. Then the contact method is developed to determine the position accuracy through the virtual assembling of the bore and shaft using the monte carlo simulation. The effects of the cy-lindricity error and the number of lobes on the position error were analyzed in detail. The results indicate that the cylindricity error has more significant influence on the position accuracy between the cylindrical parts than the roundness error. Using the suggested method in the paper, the position accuracy can be rapidly pre-dicted after the design tolerances are allocated or the geometrical errors are measured on manufactured parts.