NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Hydraulic Actuator System for Rotor ControlIn the last ten years, several different types of actuators were developed and fabricated for active control of rotors. A special hydraulic actuator system capable of generating high forces to rotating shafts via conventional bearings is addressed. The actively controlled hydraulic force actuator features an electrohydraulic servo valve which can produce amplitudes and forces at high frequencies necessary for influencing rotor vibrations. The mathematical description will be given in detail. The experimental results verify the theoretical model. Simulations already indicate the usefulness of this compact device for application to a real rotor system.
Document ID
19920005145
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ulbrich, Heinz
(Technische Univ. Munich, Germany)
Althaus, Josef
(Technische Univ. Munich, Germany)
Date Acquired
September 6, 2013
Publication Date
October 1, 1991
Publication Information
Publication: NASA. Lewis Research Center, Rotordynamic Instability Problems in High-Performance Turbomachinery, 1990
Subject Category
Mechanical Engineering
Accession Number
92N14363
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available