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Dynamics of mechanical feedback-type hydraulic servomotors under inertia loadsAn analysis of the dynamics of mechanical feedback-type hydraulic servomotors under inertia loads is developed and experimental verification is presented. The analysis, which is developed in terms of two physical parameters, yields direct expressions for the following dynamic responses: (1) the transient response to a step input and the maximum cylinder pressure during the transient and (2) the variation of amplitude attenuation and phase shift with the frequency of a sinusoidally varying input. The validity of the analysis is demonstrated by means of recorded transient and frequency responses obtained on two servomotors. The calculated responses are in close agreement with the measured responses. The relations presented are readily applicable to the design as well as to the analysis of hydraulic servomotors.
Document ID
19930092160
Document Type
Other
Authors
Gold, Harold
Otto, Edward W
Ransom, Victor L
Date Acquired
September 6, 2013
Publication Date
January 1, 1953
Report/Patent Number
NACA-TR-1125
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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