Predicting Dynamic Instability Boundaries Using Lattice Filters

Format:

Conference/Event

Author/Creator:

Wendler, Bruce H., author.

Conference Name:

Aerospace Congress & Exposition (1983-10-03 : Long Beach, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1983

Summary:

This paper discusses the use of lattice filter formulations for computing instability boundaries from subcritical test data. Lattice filters have the inherent properties such that the instability mechanism does not have to be known a priori and the model order can be self adjusting for the data being observed. The filters are numerically efficient and there exist lattice filter forms where if the excitation force on the structure is Gaussian noise over the bandwidth of interest, then the input forces do not need to be measured. Resuits from an application of the lattice filter formulation on a high speed wind tunnel flutter model test show that the projected boundaries compare accurately with actual flutter boundaries encountered during the test

Notes:

Vendor supplied data

Publisher Number:

831432

Access Restriction:

Restricted for use by site license