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Perfect Static Balance of Linkages by Addition of Springs But Not Auxiliary Bodies

Deepak, Sangamesh R and Ananthasuresh, GK (2012) Perfect Static Balance of Linkages by Addition of Springs But Not Auxiliary Bodies. In: JOURNAL OF MECHANISMS AND ROBOTICS-TRANSACTIONS OF THE ASME, 4 (2).

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Official URL: http://dx.doi.org/10.1115/1.4006521

Abstract

A linkage of rigid bodies under gravity loads can be statically counter-balanced by adding compensating gravity loads. Similarly, gravity loads or spring loads can be counterbalanced by adding springs. In the current literature, among the techniques that add springs, some achieve perfect static balance while others achieve only approximate balance. Further, all of them add auxiliary bodies to the linkage in addition to springs. We present a perfect static balancing technique that adds only springs but not auxiliary bodies, in contrast to the existing techniques. This technique can counter-balance both gravity loads and spring loads. The technique requires that every joint that connects two bodies in the linkage be either a revolute joint or a spherical joint. Apart from this, the linkage can have any number of bodies connected in any manner. In order to achieve perfect balance, this technique requires that all the spring loads have the feature of zero-free-length, as is the case with the existing techniques. This requirement is neither impractical nor restrictive since the feature can be practically incorporated into any normal spring either by modifying the spring or by adding another spring in parallel. DOI: 10.1115/1.4006521]

Item Type: Journal Article
Additional Information: Copyright for this article belongs to American Society of Mechanical Engineers
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 12 Dec 2012 06:22
Last Modified: 12 Dec 2012 06:22
URI: http://eprints.iisc.ac.in/id/eprint/45507

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