Type Synthesis of 4-DOF Non-Overconstrained Parallel Mechanisms with Symmetrical Structures-Reference-Cited by-同舟云学术

Type Synthesis of 4-DOF Non-Overconstrained Parallel Mechanisms with Symmetrical Structures

Published:2022-11-27 Issue:12 Volume:10 Page:1123
ISSN:2075-1702
Container-title:Machines
language:en
Short-container-title:Machines

Author:

Ye Wei,Li Qinchuan,Chai Xinxue

Abstract

This paper presents the type synthesis of 4-DOF non-overconstrained parallel mechanisms (PMs) with symmetrical structures. A special topological structure that includes two intermediate platforms and one moving platform is employed. Constraint conditions for 3R1T, 2R2T, and 1R3T (R: rotation; T: translation) symmetrical PMs are analyzed. Several classes of hybrid limbs that exert a constraint force or a constraint couple are synthesized using screw theory. These limbs are then used to construct 4-DOF PMs, resulting in many novel non-overconstrained 3R1T, 2R2T, and 1R3T PMs with symmetrical structures. The non-overconstrained feature is verified based on the Grübler/Kutzbach criterion.

Funder

Open Foundation of The State Key Laboratory of Mechanical Transmissions, Chongqing University

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Industrial and Manufacturing Engineering,Control and Optimization,Mechanical Engineering,Computer Science (miscellaneous),Control and Systems Engineering

Link

https://www.mdpi.com/2075-1702/10/12/1123/pdf

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