FLUTTER AND STALL RESPONSE OF A HELICOPTER BLADE WITH STRUCTURAL NONLINEARITY

被引：67

作者：

TANG, DM

DOWELL, EH

机构：

[1] Department of Mechanical Engineering, Materials Science, Duke University, Durham, NC

[2] School of Engineering, Duke University, Durham, NC

来源：

JOURNAL OF AIRCRAFT | 1992年 / 29卷 / 05期

关键词：

408 Structural Design - 651 Aerodynamics - 652 Aircraft and Avionics;

D O I：

10.2514/3.46268

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The purpose of the present paper is to study the flutter instability and forced response of a nonrotating helicopter blade model with a NACA-0012 airfoil and a pitch freeplay structural nonlinearity, In this paper, three typical combinations of linear and nonlinear structure with a linear and nonlinear (ONERA) aerodynamic model are considered. Characteristic results are used to display the limit cycle oscillation and chaotic behavior of both the flutter instability and forced response for all three cases. The effects of various initial disturbance amplitudes on the forced response behavior are discussed. Comparisons of the results for the three cases are helpful in understanding physically the nonlinear aeroelasticity phenomena and chaotic oscillations.

引用

页码：953 / 960

页数：8

共 11 条

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