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An analysis of contact instability in terms of passive physical equivalents

Colgate, E., Hogan, N.·2003·Proceedings, 1989 International Conference on Robotics and Automation

Abstract

The authors explore the sources of and solutions to robot contact instability associated with force feedback. The behavior of several linear robot models is analyzed in terms of the properties of their admittances. Using the novel technique of passive physical equivalents, an explanation for the often-observed instability of a force-controlled robot contacting a stiff surface is offered, and it is shown that a fundamental limit exists to the efficacy of any force feedback controller implemented on a robot with noncolocated actuators and sensors. Suggestions for improved force control involving both mechanical design and compensator design are also presented.>

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Crossref · 10.1109/robot.1989.100021

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Metadata

Authors
Colgate, E., & Hogan, N.
Venue
Proceedings, 1989 International Conference on Robotics and Automation
Published
2003-01-07
Pages
404-409
ISSN
1050-4729 (ISSN-L)
OpenAlex
W2139548710
Cited by
266
References
1
FWCI
17.65
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: An analysis of contact instability in terms of passive physical equivalents. https://app.cochat.ai/papers/10.1109/robot.1989.100021
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Colgate, E., & Hogan, N. (2003). An analysis of contact instability in terms of passive physical equivalents. Proceedings, 1989 International Conference on Robotics and Automation. https://doi.org/10.1109/robot.1989.100021

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