Accession Number : ADP005615

Title :   Integrated Design of Structures,

Corporate Author : MESSERSCHMITT-BOELKOW-BLOHM G M B H MUNICH (GERMANY F R)

Personal Author(s) : Sensburg,O. ; Schmidinger,G. ; Fuellhas,K.

Report Date : DEC 1986

Pagination or Media Count : 20

Abstract : It is shown that for highly sophisticated, naturally unstable airplanes flying supersonically a joint strategy to lay out the flight control system while minimizing design loads must be adopted. The selection of control surface geometry must be performed utilizing all possibilities from overall structural optimization including aeroelastic tailoring for primary carbon fibre structures. In the proposed design philosophy the behavior of the elastic airplane structure must be introduced and optimized in the very early design stage. It is shown in the paper that the required control surface hinge moments can be reduced by optimizing mass penalties and efficiencies. Minimizing installed hydraulic power supply has also a beneficial effect on engine performance at low speed, high altitudes.

Descriptors :   *AERONAUTICAL ENGINEERING, *AERODYNAMIC STABILITY, *SUPERSONIC AIRCRAFT, AEROELASTICITY, CONTROL SURFACES, FLIGHT CONTROL SYSTEMS, MILITARY AIRCRAFT

Subject Categories : Military Aircraft Operations

Distribution Statement : APPROVED FOR PUBLIC RELEASE