| 倾转旋翼飞行器发动机短舱倾转角度-速度包线分析 |
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| 引用本文： | 曹芸芸,陈仁良.倾转旋翼飞行器发动机短舱倾转角度-速度包线分析[J].航空动力学报,2011,26(10):2174-2180. |
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| 作者姓名： | 曹芸芸 陈仁良 |
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| 作者单位： | 南京航空航天大学航空宇航学院直升机旋翼动力学重点实验室,南京,210016 |
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| 摘 要： | 针对倾转旋翼飞行器过渡飞行中的变体、变速特点提出了一种确定倾转旋翼飞行器从直升机模式向固定翼飞机模式过渡的发动机短舱倾转角度-速度包线分析方法.该方法从低速段包线和高速段包线两方面开展研究,分析倾转过程中旋翼和机翼的气动力匹配关系,以机翼失速限制确定低速段的发动机短舱倾转角度-速度包线,以旋翼可用功率限制确定高速段的发...
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| 关 键 词： | 倾转旋翼 旋翼 失速 过渡飞行 倾转模式 倾转角度-速度包线 |
| 收稿时间： | 2010/11/2 0:00:00 |
| 修稿时间： | 2011/1/12 0:00:00 |
Investigation on nacelle conversion envelope analysis method of tiltrotor aircraft |
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| CAO Yun-yun and CHEN Ren-liang.Investigation on nacelle conversion envelope analysis method of tiltrotor aircraft[J].Journal of Aerospace Power,2011,26(10):2174-2180. |
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| Authors: | CAO Yun-yun and CHEN Ren-liang |
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| Institution: | Science and Technology on Rotorcraft Aeromechanics Laboratory, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Science and Technology on Rotorcraft Aeromechanics Laboratory, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | For conversion mode of tiltrotor aircraft from helicopter mode to fixed wing airplane mode,an analysis method based on the transition flight's characteristics of morphing,and speed change was established to investigate the nacelle conversion envelope.The method includes the lower speed and higher speed envelopes.A detailed analysis of the matching relationship between the rotors aerodynamic forces and wing aerodynamic forces in the conversion mode was conducted.The lower conversion boundary was restricted by wing stall and the upper conversion boundary restricted by available power limited by engines.The XV-15 tiltrotor aircraft was taken as an example to analyze the conversion envelope.The results fairly agree with the XV-15 data,showing that the calculation methodology for the nacelle conversion envelope of tiltrotor aircraft is reasonable and effective. |
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| Keywords: | tiltrotor rotor stall transition flight conversion mode conversion envelope |
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