Accession Number:

AD0724333

Title:

The Effects of Various Parameters on an Aeroelastic Optimization Problem,

Descriptive Note:

Corporate Author:

BROWN UNIV PROVIDENCE R I DIV OF APPLIED MATHEMATICS

Personal Author(s):

Report Date:

1971-01-01

Pagination or Media Count:

23.0

Abstract:

The optimal design of a panel flutter problem is investigated. A semi-infinite flat panel with either a homogeneous or sandwich cross-section is considered. The thickness distribution of the panel is allowed to vary while the total weight is held fixed, and the distribution which maximizes the critical flutter parameter for stability is chosen as the optimal design. This design is calculated here by means of a gneralized Ritz procedure, with the panel thickness assumed to have a certain form. Variations in the following parameters are then considered a minimum allowable thickness, aerodynamic damping, inplane loading, and non-structural stiffness and mass for the case of a sandwich panel. It is shown that the optimal design may be significantly affected by changes in these parameters. Author

Subject Categories:

  • Aircraft
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE