Flexible Cam Profile Synthesis Method Using NURBS and its Optimization Based on Genetic Algorithm

Rong Yu Ge; P. Q. Guo

doi:10.4028/www.scientific.net/AMR.426.69

Paper Titles

Experimental Investigation on Conventional Grinding of TC4 and TC11 Using SiC Abrasive
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Experimental Investigation on Drilling PCB Through-Holes
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Experimental Investigations of Surface Hardening for Aviation Aluminum Alloy in High Speed Milling
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Fabrication of Micro-Precision Sieves with High Open Area Percentage Using Micro-Electroforming Technology
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Flexible Cam Profile Synthesis Method Using NURBS and its Optimization Based on Genetic Algorithm
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Formation of Cutting Direction Burr/Fracture in Orthogonal Cutting
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Grey New Information GRM(1,1) Model Based on Accumulated Generating Operation of Reciprocal Number and its Application
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Grey New Information Unbiased GRM(1,1) Model Based on Accumulated Generating Operation in Reciprocal Number and its Application
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Influence of Technical Parameters on the Residual Stress in the Diamond Coating
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Flexible Cam Profile Synthesis Method Using NURBS and its Optimization Based on Genetic Algorithm

Abstract:

This paper describes a synthesis method of designing flexible cam profiles by using quintic non-uniform rational B spline (NURBS) curves. The cam profile curve can be optimized by adjusting knot vector, control points and weight factors of NURBS curve. The multiobjective optimization for a cam curve was described to satisfy both kinematic and dynamic requirements. To solve the optimization model for NURBS cam curve, an improved genetic algorithm (GA) called INSGA in the paper was proposed. Application examples on the kinematical and dynamical optimization of cam curves are presented together with detailed discussions. These examples, especial the dynamic optimization to control the residual vibration for a cam curve used in an indexing cam mechanism, sufficiently illustrate the effectiveness of the proposed approach.