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The interaction of control gain and vibration with continuous manual control performance

The interaction of control gain and vibration with continuous manual control performance
The interaction of control gain and vibration with continuous manual control performance

The interaction of the effects of control gain and 4 Hz vertical (z-axis), whole-body vibration at 0·75 m/s2 rms on human operator performance in a simple manual tracking system was investigated with four different controls. The controls were isotonic (displacement) and isometric (force) joysticks and knobs. Performance analysis includes calculation of closed-loop human operator transfer functions, components of error correlated with the tracking input and vibration and operator generated noise. The optimum control gains for minimizing tracking error under vibration were found to be lower than in static conditions due to increases in vibration-correlated error and operator-generated noise, which both tend to be proportional to control gain.

1022-5528
553-562
Lewis, C. H.
78f3ab9e-ff7a-4ffd-8768-504bbf8bb1dd
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Lewis, C. H.
78f3ab9e-ff7a-4ffd-8768-504bbf8bb1dd
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Lewis, C. H. and Griffin, M. J. (1977) The interaction of control gain and vibration with continuous manual control performance. Topics in Catalysis, 55 (4), 553-562. (doi:10.1016/S0022-460X(77)81179-6).

Record type: Article

Abstract

The interaction of the effects of control gain and 4 Hz vertical (z-axis), whole-body vibration at 0·75 m/s2 rms on human operator performance in a simple manual tracking system was investigated with four different controls. The controls were isotonic (displacement) and isometric (force) joysticks and knobs. Performance analysis includes calculation of closed-loop human operator transfer functions, components of error correlated with the tracking input and vibration and operator generated noise. The optimum control gains for minimizing tracking error under vibration were found to be lower than in static conditions due to increases in vibration-correlated error and operator-generated noise, which both tend to be proportional to control gain.

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Published date: 22 December 1977

Identifiers

Local EPrints ID: 429274
URI: http://eprints.soton.ac.uk/id/eprint/429274
ISSN: 1022-5528
PURE UUID: bfc63b96-687a-41c1-919e-ef5fe92e3145
ORCID for M. J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

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Date deposited: 25 Mar 2019 17:30
Last modified: 26 Mar 2019 01:38

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