Accession Number : ADA270270

Title :   Vane Optimization for Maximum Efficiency Using Design of Experiments (DOX).

Descriptive Note : Final rept. Apr 92-Mar 93,

Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Kerney, Paul T.

Report Date : MAR 1993

Pagination or Media Count : 47

Abstract : Optimization of vane and bleed settings in a multistage axial compressor undergoing development can be a difficult, time-consuming, and expensive process. This project optimized seven variable vanes and one variable bleed on the five-stage Pratt & Whitney XTC66 compressor at the aerodynamic design point (ADP) for maximum efficiency using Design of Experiments (DOX). The DOX are statistical methods for changing process inputs in a systematic way, and analyzing the resulting outputs in order to improve a response to an acceptable or optimum value, find a less expensive design, material, or method providing equivalent results, or understand process sensitivities. Along with developing a model for maximum efficiency, the project also developed models for predicting pressure ratio and mass flow. Results show the number of Steady State Data Points (SSDPs) to be reduced, as well as, the total test time without sacrificing data integrity. Vane optimization, Design of experiments, Axial compressor, Taguchi Orthogonal arrays, Central composite design.

Descriptors :   *COMPRESSORS, *GAS TURBINES, *AXIAL FLOW FANS, AERODYNAMICS, ARRAYS, EFFICIENCY, EXPERIMENTAL DESIGN, FLOW, INPUT, MASS FLOW, MODELS, OPTIMIZATION, OUTPUT, PRESSURE, STEADY STATE, TEST AND EVALUATION, VARIABLES, AIRCRAFT, VANEAXIAL FANS, PROBABILITY, ENGINE COMPONENTS.

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE