ESDU 89043:1989

$89.05

A Comparison of Techniques for Balancing Planar Linkages

Published By	Publication Date	Number of Pages
ESDU	1989-11	25

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Category: ESDU

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ESDU 89043 gives guidance on selecting in given circumstances the most appropriate balancing technique to eliminate or reduce both the shaking force and the shaking moment on a planar linkage. Design criteria on which a rational choice depends are discussed and, by means of a tabular presentation, each of eleven separate techniques can be assessed against the requirements of a particular application. The principle underlying each technique is explained and sketches illustrate their practical application. The methods covered are of three types: link mass distribution (for example, by adding counterweights), the addition of moving links (for example, adding an identical linkage with mirror-image symmetry) and the addition of rotating or oscillating masses (for example, the Lanchester balancer). In practice, two or more of the techniques may be combined and a table indicates possible such combinations.