Geometric and Kinematic Analysis of the Hoberman Switch-Pitch Ball and Its Variant

Author:

Wei Guowu1,Ding Xilun2,Dai Jian S.1

Affiliation:

1. King’s College London, London, UK

2. Beijing University of Aeronautics and Astronautics, Beijing, China

Abstract

This paper investigates geometry and kinematics of the Hoberman switch-pitch ball and its variant as an extended case of the ball. The paper starts from examining the geometry of the ball variant and its composition and decomposes it into loops each of which is an eight-bar radial linkage. Based on this, the paper investigates the geometry of the eight-bar radial linkage and the variant and subsequently extends the study to their kinematics. The Hoberman switch-pitch ball as a special case of the ball variant with bevel gears is investigated and a numerical example is employed to illustrate the kinematic characteristics of the eight-bar radial linkage and the Hoberman switch-pitch ball.

Publisher

ASMEDC

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

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