Title of Paper:A Research on Start-Up Modeling for Turbo Shaft Engines

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Affiliation of Author(s):能源与动力学院

Journal:Tuijin Jishu

Abstract:A reliable and quick starting process of turbo shaft engines is the premise of safety work into the drive of rotor aircraft, a starting process model with high fidelity can help to analyze and optimize the starting process of engines and the cost of rig tests will be reduced. To solve complex nonlinear characteristics of modeling problems in the starting process, a general modeling method named stage-stacking method is put forward, according to the inlet conditions, to obtain the low-speed characteristics data of compressor, the flow parameters of all stages are calculated.On the basis of similarity principle, the low-speed characteristics data of gas turbine and free turbine is calculated. The startup model proposed is a combined calculation for component level cooperated-working and cold working before ignition. Finally a startup model for some turbo-shaft engine is established, and the digital simulation under the standard ground state is conducted. Compared with the rig test data, the maximum error is less than 10%. The results show that the established model can be applied to simulate the starting process for the turbo shaft engine. © 2017, Editorial Department of Journal of Propulsion Technology. All right reserved.

ISSN No.:1001-4055

Translation or Not:no

Date of Publication:2017-06-01

Co-author:Ju, Xin-Xing,Chen, Hao-Ying

Correspondence Author:zhb