所属单位：航空学院
发表刊物：Hangkong Dongli Xuebao
摘要：The critical influential factors limiting the flight performance of conventional multi-axis aircraft were analyzed. The method to improve the flight performance of multi-rotor aircraft was studied by means of variation of rotor collective pitch and rotational speed. Based on dynamic stall, unsteady flap and dynamic inflow model, a comprehensive aerodynamic theoretical model was developed to analyze the flight performance. A demonstrator multi-axis rotor aircraft was developed for flight test. The flight experimental results and theoretical results showed that the aircraft required power increases obviously with the increase of takeoff weight. Under different payloads and rotor rotational speed conditions, experimental and theoretical required very good agreement of the power results up to 97% at light load reach and 95% at heavy load respectively. By means of comparison and analysis, the theoretical performance analysis method was validated. And furthermore the simulation demonstrated that variation of the rotor collective pitch and rotational speed evidently improved maximal take-off weight and flight duration of multi-axis aircraft. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.
ISSN号：1000-8055
是否译文：否
发表时间：2018-05-01
合写作者：王焕瑾,Lin, Ziguo
通讯作者：宋彦国
发表时间：2018-05-01