Accession Number : ADA332119

Title :   Multidisciplinary Rotorcraft Analysis and Simulation

Descriptive Note : Technical rept. 1 Sep 94-31 Aug 97

Corporate Author : WASHINGTON UNIV ST LOUIS MO DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Peters, David A.

PDF Url : ADA332119

Report Date : 03 NOV 1997

Pagination or Media Count : 7

Abstract : This three-year grant is now completed, although an augmentation grant is still continuing the work along new lines. In this grant, we developed the analysis and simulation tools necessary to treat rotorcraft design problems when the rotorcraft has unsteady or unknown RPM. The tools developed include a Fast Floquet theory that can be applied to rotorcraft with multiple rotors and unknown RPM, a new spatially based Fourier Series Method, several types of auto pilots and discrete auto pilots, and hybrid combinations of methods. The work also developed a mathematical theory of trim that includes unsteady and unknown RPM in the development as well as numerical and experimental test beds on which to test new methods.

Descriptors :   *ROTARY WING AIRCRAFT, *ROTOR BLADES, VIBRATION, AERODYNAMIC CHARACTERISTICS, AUTOMATIC PILOTS.

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE