Simplified Analysis of a Gas Powered Servo Actuator 650353

Historically, gas powered servo actuator analysis has been complex. A linearized analysis approach is outlined for use in solving preliminary dynamic design problems.
The simplified mathematical description is developed and illustrated to describe the inherent characteristics and limitations of the basic valve and actuator. The type of valve can be selected for the model by assigning appropriate values for port underlap and area gains. Inertial, spring and viscous friction loads can be examined separately or in any combination. The dynamics of a specific design condition can be estimated by use of the model to determine applicability, then related sizes form the basis for system weight estimates.


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