INFLUENCE OF UNSTEADY AERODYNAMICS ON ROTOR BLADE AEROELASTIC STABILITY AND RESPONSE

被引：5

作者：

FRIEDMANN, PP

ROBINSON, LH

机构：

[1] Mechanical, Aerospace and Nuclear Engineering Department, University of California, Los Angeles, Los Angeles, CA

[2] University of California, Los Angeles, Los Angeles, CA

[3] McDonald Douglas Helicopter Co., Mesa, AZ

来源：

AIAA JOURNAL | 1990年 / 28卷 / 10期

基金：

美国国家航空航天局;

关键词：

D O I：

10.2514/3.10477

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper describes the incorporation of finite-state, time-domain aerodynamics in a flap-lag-torsional aeroelastic stability and response analysis in forward flight. Improvements to a previous formulation which eliminate spurious singularities are introduced. The methodology for solving the aeroelastic stability and response problems with augmented states, in the time domain, is presented using an implicit formulation. Results illustrating the aeroelastic behavior of soft and stiff in-plane hingeless rotor blades in forward flight are presented to show the sensitivity of both the stability and response problems to time-domain unsteady aerodynamics. © 1990 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

引用

页码：1806 / 1812

页数：7

共 14 条

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CELI, R ;

FRIEDMANN, PP .

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[3] APPLICATION OF TIME-DOMAIN UNSTEADY AERODYNAMICS TO ROTARY-WING AEROELASTICITY [J].

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[5]

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[6]

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[7]

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[8]

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[9]

GOANKAR G, 1986, J AM HELICOPTER SOC, V31, P47

[10]

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