An Extension of an Algorithm for Planar Four-bar Path Generation with Optimization

نویسندگان

  • Yahia M. Al-Smadi
  • Kevin Russell
  • Wen-Tzong Lee
  • Raj S. Sodhi
چکیده

This work is an extension of the authors’ published work on a planar four-bar motion generation search algorithm with Grashof, transmission angle and linkage perimeter conditions [1]. This latest work considers planar four-bar path generation with a coupler point load, crank static torque, crank transverse deflection and follower buckling in a modified search algorithm. As demonstrated in the example, a conventional methodology used in kinematic path generation has been expanded to consider static loading, elastic deflection and buckling in path generation. These factors must be considered in mechanical design, but are not the focus in traditional kinematic synthesis. L’EXTENSION D’UN ALGORITHME DE GÉNÉRATION DE TRAJECTOIRE OPTIMISÉ POUR UN QUADRILATÈRE ARTICULÉ PLANAIRE RÉSUMÉ L’article est une suite du travail déjà publié sur un algorithme de recherche pour la génération de trajectoire pour un quadrilatère articulé planaire, basé sur la loi Grashof, l’angle de transmission et les conditions de périmètre des liaisons [1]. Ce travail se penche sur la génération de trajectoire avec le chargement d’un point sur la liaison coupleur, la couple statique de manivelle, la déflection transversale de manivelle et le flambage de la liaison suiveur avec un algorithme de recherche modifié. Une méthodologie conventionnelle de génération cinématique de trajectoire, tel que démontré par un exemple, a été améliorée en considérant le chargement statique, la déflection élastique et le flambage. Ces facteurs doivent être considérés dans la conception mécanique, mais ils ne sont pas le point central dans la synthèse cinématique traditionnelle. Transactions of the Canadian Society for Mechanical Engineering, Vol. 33, No. 3, 2009 443

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تاریخ انتشار 2009