Defence Science Journal | |
Validation of Comprehensive Helicopter Aeroelastic Analysis with Experimental Data | |
Ranjan Ganguli1  Shrinivas R. Bhat1  | |
[1] Indian Institute of Science, Bangalore | |
关键词: Helicopter; vibration; validation; aeroelastic analysis; finite element model; rotor blade; aerodynamic models; free-wake models; unsteady aerodynamics; quasi-steady aerodynamics; | |
DOI : | |
学科分类:社会科学、人文和艺术(综合) | |
来源: Defence Scientific Information & Documentation Centre | |
【 摘 要 】
The experimental data for a Cbladed soft-inplane hingeless main rotor is used to validate a comprehensive aeroelastic analysis. A finite element model has been developed for the rotor blade which predicts rotating frequencies quite well, across a range of rotation speeds. The helicopter is trimmed and the predicted trim-control angles are found to be In the range of measured values for a variety of flight speeds. Power predictions over a range of forward speeds also compare well. Finally, the aeroelastlc analysis is used to study the Importance of aerodynamic models on the vibration predict~onU. nsteady aerodynamics and free-wake models have been investigated.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010139631ZK.pdf | 366KB | download |