点击次数：

所属单位：航空学院

发表刊物：JOURNAL OF AIRCRAFT

关键字：PREDICTION

摘要：A distributed atmospheric turbulence model is developed for helicopter flight simulation. The impacts of different aerodynamic surfaces on handling qualities with helicopter in turbulence are analyzed. Both helicopter flight dynamic model and turbulence model are validated against the flight test data, which shows that the proposed model improves the accuracy of the simulation of rotor blade element turbulence model on the vertical axis within the interested frequency range for handling-quality analysis. A quantitative index is developed to study the impact of turbulence on helicopter handling qualities by analyzing the effects of different aerodynamic surfaces on helicopter response to turbulence. The results show that the main rotor has the dominant effects on both the heave and roll handling qualities, the air frame has the primary effect on the pitch handling quality, and the tail rotor has an important effect on the yaw handling quality. Furthermore, the impacts of the main rotor in turbulence on the helicopter handling qualities of roll, pitch, and yaw increase with the forward speed at lower speeds but decrease at higher speeds. The increment trend with the forward speed of the airframe's impacts on the pitch and yaw handling qualities reduces at higher speeds.

ISSN号：0021-8669

是否译文：否

发表时间：2017-01-01

合写作者：Ji, Honglei,李攀

通讯作者：陈仁良