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An Empirical Study of the Joint Space Inertia Matrix

Featherstone, Roy

Description

The joint-space inertia matrix of a robot mechanism can be highly ill-conditioned. This phenomenon is not merely a numerical artifact; it is symptomatic of an underlying property of the mechanism itself that can make it more difficult to simulate or control. This paper investigates the problem by means of an empirical study of the eigenvalues, eigenvectors and condition number of the joint-space inertia matrix. It is shown that the condition number is typically large, and that it grows anywhere...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/78122
Source: International Journal of Robotics Research
DOI: 10.1177/0278364904044869

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