Dynamic Modeling of Helicopter Rotor Blades
This paper is concerned with the dynamic analysis of a pre-twisted rotating composite rotor blade. General kinematical relations for a beam theory that treats finite rotation are established. Two sets of analyses are extracted from the 3-D nonlinear blade analysis: one the 2-D linear cross section analysis, and the other the 1-D nonlinear blade analysis. The Danielson-Hodges generalized measures and Green strain are introduced to calculate strain-displacement relations. In addition, rotor structural dynamics is developed with multi-body formulation. The Hartenberg-Denavit method is introduced and the recursive computation method for the position vector of a generic point in an inertial frame is derived. In comparison with measurements from Minguets experiment and blade-droop stop impact tests, the results are in good agreement with them.
Helicopter rotor Finite rotation Dynamics Recursive computation method
Yi-Feng Wang Hao-Wen Wang Zheng Gao Jing-Hui Deng Yong-Hong Fang
College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China Helicopter Research & Development Institute, Jingdezhen 333001, PR China
国际会议
北京
英文
1-5
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）