Accession Number:

ADA160022

Title:

Effect of Dynamic Stall and Elastic Parameters on the Fundamental Mechanisms of Helicopter Vibrations

Descriptive Note:

Final rept. 1 Sep 1983-31 Aug 1985

Corporate Author:

WASHINGTON UNIV ST LOUIS MO SCHOOL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s):

Report Date:

1985-09-01

Pagination or Media Count:

11.0

Abstract:

This research dealt with the modeling and solution of rotary-wing dynamics. In the modeling area, it deals with elastic-blade models, ways to introduce rotor-body coupling, aerodynamic behavior near blade-tips, and the modeling of dynamic stall. In solution strategies, we have concentrated on new and improved Floquet methods, on innovative trim methodologies such as auto- pilot and periodic shooting, on efficient formulation of equations, and on lifting-line and lifting-surface meshes.

Subject Categories:

  • Helicopters
  • Fluid Mechanics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE