Accession Number:

ADP000370

Title:

Gas Turbine Rotor/Case Structural Response to Rotating Stall: Experimental Documentation and Analytical Approach,

Descriptive Note:

Corporate Author:

GENERAL MOTORS CORP INDIANAPOLIS IN DETROIT DIESEL ALLISON DIV

Personal Author(s):

Report Date:

1982-01-01

Pagination or Media Count:

16.0

Abstract:

This work presents experimental data describing the forcing functions and structural responses characterizing gas turbine rotorcase system vibration due to rotating stall in an axial-flow compressor. Two data sets with fundamentally different response characteristics are presented one is supersynchronous and the other subsynchronous. Conventional beam-element rotor dynamics analysis is shown to be severely limited in its ability to predict these responses. A new analytical approach, which significantly increases structural response predictive capability for these phenomena, is briefly discussed.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE