1972-02-01

Servo Controller for Fatigue Testing Full-Scale Structures 720385

The Servo Controller is basically a closed-loop device capable of producing and applying a program of multiple time-varying forces to a test specimen. It was developed as a universal tool to fatigue test full-scale specimens in the laboratory. An electrohydraulic servovalve is utilized as a controlling mechanism. This paper reviews the design and development of the system and discusses some of its application.

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