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°ïæ²é¼ìË÷ºÅ Flap motion of helicopter rotors with novel, dynamic stall model DOI: 10.1515/phys-2016-0019 @°¢Å¬ ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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https://apps.webofknowledge.com/ ... age=1&doc=1 Flap motion of helicopter rotors with novel, dynamic stall model ×÷Õß:Han, W (Han, Wei)[ 1 ] ; Liu, J (Liu, Jie)[ 1 ] ; Liu, C (Liu, Chun)[ 2 ] ; Chen, L (Chen, Lei)[ 3 ] ; Su, XC (Su, Xichao)[ 1 ] ; Zhao, P (Zhao, Peng)[ 4 ] OPEN PHYSICS ¾í: 14 ÆÚ: 1 Ò³: 239-246 DOI: 10.1515/phys-2016-0019 ³ö°æÄê: JAN 2016 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª In this paper, a nonlinear flapping equation for large inflow angles and flap angles is established by analyzing the aerodynamics of helicopter blade elements. In order to obtain a generalized flap equation, the Snel stall model was first applied to determine the lift coefficient of the helicopter rotor. A simulation experiment for specific airfoils was then conducted to verify the effectiveness of the Snel stall model as it applies to helicopters. Results show that the model requires no extraneous parameters compared to the traditional stall model and is highly accurate and practically applicable. Based on the model, the relationship between the flapping angle and the angle of attack was analyzed, as well as the advance ratio under the dynamic stall state. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:Flapping; nonlinear differential equation; dynamic stall; Snel model ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Liu, J (ͨѶ×÷Õß) Naval Aeronaut & Astronaut Univ, Dept Airborne Vehicle Engn, Yantai 264001, Peoples R China. µØÖ·: [ 1 ] Naval Aeronaut & Astronaut Univ, Dept Airborne Vehicle Engn, Yantai 264001, Peoples R China [ 2 ] 650 Aircraft Design Inst AVIC Hongdu, Nanchang 330024, Peoples R China [ 3 ] Aviat Univ Air Force, Changchun 130022, Peoples R China ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ [ 4 ] Wuhan Univ, Wuhan 430072, Peoples R China µç×ÓÓʼþµØÖ·:liuyexiaobao@163.com ³ö°æÉÌ DE GRUYTER OPEN LTD, BOGUMILA ZUGA 32A ST, 01-811 WARSAW, POLAND Àà±ð / ·ÖÀà Ñо¿·½Ïò hysicsWeb of Science Àà±ð hysics, MultidisciplinaryÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000385764000011 ISSN: 2391-5471 ÆäËûÐÅÏ¢ IDS ºÅ: DZ3QM Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 22 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |
2Â¥2017-03-17 18:56:23
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