航空学报 > 2014, Vol. 35 Issue (1): 151-160   doi: 10.7527/S1000-6893.2013.0268

机翼对自转旋翼机纵向稳定性的影响

王俊超, 李建波   

  1. 南京航空航天大学 航空宇航学院, 江苏 南京 210016
  • 收稿日期:2013-03-04 修回日期:2013-05-23 出版日期:2014-01-25 发布日期:2013-06-28
  • 通讯作者: 李建波,Tel.:025-84895188 E-mail:ljb101@nuaa.edu.cn E-mail:ljb101@nuaa.edu.cn
  • 作者简介:王俊超 男,博士研究生。主要研究方向:直升机总体设计、直升机空气动力学、直升机飞行动力学。Tel:025-84895188 E-mail:wjc@nuaa.edu.cn;李建波 男,博士,研究员,博士生导师。主要研究方向:旋翼类飞行器总体设计研究、直升机气动及飞行动力学研究、旋翼结构及动力学设计。Tel:025-84895188 E-mail:ljb101@nuaa.edu.cn
  • 基金资助:

    国家自然科学基金(11202097);航空科学基金(2011ZA52004);江苏高校优势学科建设工程资助项目

Effects of Wing on Autogyro Longitudinal Stability

WANG Junchao, LI Jianbo   

  1. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2013-03-04 Revised:2013-05-23 Online:2014-01-25 Published:2013-06-28
  • Supported by:

    National Natural Science Foundation of China(11202097); Aeronautical Science Foundation of China(2011ZA52004); Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要:

为了研究机翼对自转旋翼机纵向稳定性的影响,针对某复合式自转旋翼机,建立了基于状态空间法描述的非线性全量方程数学模型。该模型包含自转旋翼、机身、螺旋桨、机翼和尾翼的气动模型、动态入流模型和稳定性分析模型。运用该模型对比研究了样例自转旋翼机和样例复合式自转旋翼机的纵向稳定性。研究结果表明:机翼的增加对于浮沉模态和短周期模态稳定性是有利的;对于旋翼转速模态稳定性是不利的,在设计复合式自转旋翼机时可以考虑增加旋翼桨尖配重来提高此模态的稳定性。机翼的纵向位置对自转旋翼机的纵向稳定性有显著影响。在机翼纵向位置能满足配平约束条件下,机翼纵向位置越靠后,迎角稳定性越好,但旋翼转速稳定性越差。在设计复合式自转旋翼机时,机翼纵向位置的选择要综合考虑这两个因素进行折中。

关键词: 旋翼, 机翼, 自转旋翼机, 状态空间法, 稳定性, 数学模型, 时域分析, 飞行轨迹

Abstract:

Based on a gyroplane, a nonlinear mathematical model of coupled equations described by the state space method is presented in this paper in order to study the effects of the wing on autogyro longitudinal stability. The model consists of an aerodynamic model (which includes an autorotating rotor, a fuselage, a propeller, and a wing and a tail aerodynamic model), a dynamic inflow model and a stability analysis model. The model is applied to study the sample autogyro and sample gyroplane longitudinal stability. By contrastive analysis, the results show that the wing is favorable for phugoid mode and short period mode stability. It is unfavorable for rotor speed mode stability but the rotor blade tip weight could be increased to improve the mode stability when the gyroplane is designed. The wing longitudinal position has a significant influence on the autogyro longitudinal stability. When the wing longitudinal position satisfies the trim constraints, the more rearward the wing is located, the better is the angle of attack stability of the gyroplane, but the worse is its rotor speed stability. The wing longitudinal position should be selected eclectically by considering these two factors when a gyroplane is designed.

Key words: rotor, wing, autogyro, state space method, stability, mathematical model, time domain analysis, flight path

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