| 变转速旋翼直升机的续航性能与变速策略 |
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| 引用本文： | 吴裕平,董凌华,解望.变转速旋翼直升机的续航性能与变速策略[J].南京航空航天大学学报,2018,50(2):193-199. |
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| 作者姓名： | 吴裕平 董凌华 解望 |
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| 作者单位： | 中国直升机设计研究所;南京航空航天大学旋翼动力学国家级重点实验室 |
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| 摘 要： | 根据飞行状态合理调整旋翼转速有利于降低需用功率和油耗,能够给直升机飞行性能带来好处。本文通过航程和航时的建模与分析,评估变转速旋翼对续航性能的影响。在此基础上,进行无级变速和有级变速策略研究,提出一级、二级变速方法。研究结果表明,优化转速对续航性能的提升很明显,旋翼有限级变速(一级、二级)和额定转速相比,可以显著减小其型阻功率,综合考虑,一级变速较适合于工程应用。
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| 关 键 词： | 直升机 旋翼 转速 续航性能 有级变速 需用功率 |
| 收稿时间： | 2017/12/15 0:00:00 |
| 修稿时间： | 2018/2/15 0:00:00 |
Endurance Performance and Rotational Speed Change of Variable Speed Rotor Helicopter |
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| WU Yuping,DONG Linghu,XIE Wang.Endurance Performance and Rotational Speed Change of Variable Speed Rotor Helicopter[J].Journal of Nanjing University of Aeronautics & Astronautics,2018,50(2):193-199. |
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| Authors: | WU Yuping DONG Linghu XIE Wang |
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| Affiliation: | 1. Chinese Helicopter Research and Development Institute, Jingdezhen, 333001, China;2. State Key Laboratory of Helicopter Rotorcraft Aeromechanics, Nanjing University of Aeronautics & Astronautics, Nanjing, 210016, China |
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| Abstract: | Adjusting the rotor rotation speed reasonably along with flight states can reduce demand power and fuel consumption, thus benefit flight performance. We evaluated the effect of the variable speed rotor on endurance performance, and analyzed stepless speed change and step speed change. The level 1 and level 2 variable speed method were put forward. The research results indicated that optimized rotation speed can upgrade endurance performance obviously. Compared with the rated speed, it can reduce profile power. The level 1 variable speed method is more fit for engineering application. |
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| Keywords: | helicopters rotor rotational speed endurance performance step speed change demand power |
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