Structural–Parametric Synthesis of the Planar Four-Bar and Six-Bar Function Generators With Revolute Joints

Author:

Baigunchekov Zhumadil1,Laribi Med Amine2,Carbone Giuseppe3,Kaiyrov Rustem4,Tolenov Serik1,Dosmagambet Nurdaulet1

Affiliation:

1. Al-Farabi Kazakh National University , Almaty 050040 , Kazakhstan

2. Prime Institute CNRS, ENSMA, University of Poitiers, UPR 3346. Department of GMSC, Poitiers 86000 , France

3. DIMEG, University of Calabria , Via Bucci Cubo 45C, Rende 87036 , Italy

4. Karaganda Buketov University, Laboratory of Applied Mechanics and Robotics , Karaganda 100001 , Kazakhstan

Abstract

Abstract This paper studies a structural–parametric synthesis of the four-bar and Stephenson II, Stephenson III A, and Stephenson III B six-bar function generators. A four-bar function generator is formed by connecting two coordinate systems with given angles of rotation using a negative closing kinematic chain (CKC) of the RR type. Six-bar function generators are formed by connecting two coordinate systems using two CKCs: a passive CKC of the RRR type and a negative CKC of the RR type. The negative CKC of the RR type imposes one geometrical constraint to the relative motion of the links, and its geometric parameters are defined by least-squares approximation. Passive CKC of the RRR type does not impose a geometrical constraint, and the geometric parameters of its links are varied to satisfy the geometrical constraint of the negative CKC. Numerical results of the four-bar and six-bar function generators parametric synthesis are presented.

Publisher

ASME International

Subject

Mechanical Engineering

Reference41 articles.

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