Research on NURBS spatial cam curve based on multi-objective optimization
WANG Suyang
HE Xueming
MEI Haiqiang
Abstract：[Objective]Aiming at the insufficient comprehensive performance of existing cam curves under various working conditions,a non-uniform rational B-spline(NURBS)curve was adopted to represent the cam curve.[Methods]Firstly,based on the multi-objective optimization theory,the influences between different characteristic values were coordinated,and a normalized evaluation function based on weight distribution was constructed as an optimization method.Subsequently,the weight factors and control points were taken as optimization variables.The characteristic values of the modified sine(MS)curve were used as reference values for optimization,and the optimized results were compared with the MS curve.[Results]The results show that the comprehensive performance of the NURBS cam curve optimized by the multi-objective method is superior to that of the MS curve,which demonstrates the effectiveness of the proposed evaluation and optimization method.
Keywords：Spatial camNURBSCam curveWeight factorMulti-objective optimization
Publication Date：2026-04-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 67-73 )