Accession Number:

ADB017944

Title:

A Finite Element Mach Box Procedure for Flutter Predictions of Panels in Three-Dimensional Supersonic Unsteady Potential Flow

Descriptive Note:

Final rept. Jun-Dec 1976

Corporate Author:

AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1976-12-01

Pagination or Media Count:

105.0

Abstract:

A finite element formulation and solution procedure are developed for flutter predictions of rectangular panels with one surface exposed to three- dimensional supersonic unsteady potential flow. The effect of in-plane force is included. Each element is divided into several Mach boxes. The aerodynamic influence coefficients between each pair of sending and receiving boxes are computed by the method of Gaussian quadrature. The aerodynamic matrix is based on the numerically computed velocity potentials for all boxes.

Subject Categories:

  • Computer Programming and Software
  • Fluid Mechanics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE