Accession Number : AD0762385

Title :   Einfluss servomechanischer Steuerungs- und Stabilitaetssysteme auf das Flatterverhalten von Flugzeugen (Influence of Servomechanical Control and Stability Systems on the Flutter Characteristics of Aircraft),

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V GOETTINGEN (WEST GERMANY)

Personal Author(s) : Foersching,Hans

Report Date : 09 DEC 1971

Pagination or Media Count : 12

Abstract : Analytical investigations with regard to the influence of servomechanisms and powered controls on the flutter stability of servo-controlled aircraft are made. The relating servomechanical parameters of stability augmenter systems and of control surface actuators are discussed, and the governing aeroservoelastic equations for determining analytically the flutter characteristics of servo-controlled aircraft are presented. For the simplified two-dimensional problem numerical results have been elaborated, whereby it is shown how servo-feedback couplings may influence the flutter behavior both in a positive and a negative sense. (Author)

Descriptors :   (*FLIGHT CONTROL SYSTEMS, *SERVOMECHANISMS), (*AIRCRAFT, FLUTTER), SERVOAMPLIFIERS, FEEDBACK, AERODYNAMIC CONTROL SURFACES, STABILITY, WEST GERMANY

Subject Categories : Aerodynamics
      Aircraft
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE