ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hit 1 - 1 | 1 hit

Select All Export

Unknown

Helicopter air resonance modeling and suppression using active control (1991)

Friedmann, P. P. ; Takahashi, M. D.

In: Other Sources

add to mindlist on the mindlist

Details

Publication Date: 2019-07-12

Description: A coupled rotor/fuselage helicopter analysis with the important effects of blade torsional flexibility, unsteady aerodynamics, and forward flight is presented. Using this mathematical model, a nominal configuration is selected with an air resonance instability throughout most of its flight envelope. A multivariable compensator is then designed using two swashplate inputs and a single-body roll rate measurement. The controller design is based on the linear quadratic Gaussian technique and the loop transfer recovery method. The controller is shown to suppress the air resonance instability throughout a wide range of helicopter loading conditions and forward flight speeds.

Keywords: AIRCRAFT STABILITY AND CONTROL

Type: Journal of Guidance, Control, and Dynamics (ISSN 0731-5090); 14; 1294-130

Format: text

	Location	Call Number	Expected	Availability

Others were also interested in ...

NASA TECHNICAL REPORTS

S·F·X

hit 1 - 1 | 1 hit