跨音速操纵面嗡鸣Hopf分叉分析及结构参数对嗡鸣特性影响的研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1999, Vol. 20 ›› Issue (6): 527-532.

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HOPF BIFURCATION ANALYSIS OF TRANSONIC CONTROL SURFACE BUZZ AND INVESTIGATION OF THE INFLUENCE OF STRUCTURAL PARAMETERS ON BUZZ CHARACTERISTICS

LIU Qian-gang¹, DAI Jie², BAI Jun-qiang¹

1. Deparment of Aircraft Engineering, Northwestern Polytechnical University, Xi'an 710072,China;2. Institute of Flight Vehicle Design, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Received:1997-12-15 Revised:1999-03-01 Online:1999-12-25 Published:1999-12-25

Abstract

Abstract: Hopf bifurcation analysis is employed to investigate the problems of the control surface buzz. The unsteady aerodynamic loads acting on the control surface are calculated by the two dimensional Navier Stokes equations. The critical Mach number of the control surface buzz is calculated and the influence of the structural parameters on the buzz characteristics is also investigated. The results of the Hopf bifurcation analysis are consistent with the results of the time integration calculations, and the calculated results both are in good agreement with the flight test data.

Key words: Hopf-bifurcat ion, control sur face buzz, unsteady Navier -Stokes equat ions

CLC Number:

V215.3

LIU Qian-gang;DAI Jie;BAI Jun-qiang. HOPF BIFURCATION ANALYSIS OF TRANSONIC CONTROL SURFACE BUZZ AND INVESTIGATION OF THE INFLUENCE OF STRUCTURAL PARAMETERS ON BUZZ CHARACTERISTICS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1999, 20(6): 527-532.

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HOPF BIFURCATION ANALYSIS OF TRANSONIC CONTROL SURFACE BUZZ AND INVESTIGATION OF THE INFLUENCE OF STRUCTURAL PARAMETERS ON BUZZ CHARACTERISTICS

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