Accession Number : AD0746627

Title :   Response of Rotor Blades to Random Inputs. Part II. Combined Bending and Torsion.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s) : Lakshmikantham,Chatta ; Rao,Chintakindi V. Joga

Report Date : MAY 1972

Pagination or Media Count : 15

Abstract : The response of a flexible helicopter rotor blade to random loading is investigated, the random input being the vertical velocity component. The model takes into account blade flexibility in bending as well as torsion, and also general rotor-end fixity. The spectral density and the mean square value of the transverse displacement are computed for both hingeless and hinged rotor blades and the results are evaluated. (Author)

Descriptors :   (*ROTOR BLADES(ROTARY WINGS), AERODYNAMIC LOADING), (*HELICOPTER ROTORS, ROTOR BLADES(ROTARY WINGS)), BENDING, TORSION, AERODYNAMIC CONFIGURATIONS, EQUATIONS OF MOTION, RANDOM VARIABLES, RESPONSE

Subject Categories : Helicopters
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE