Kinematic analysis of a new type of coaxial helicopter control mechanism

被引：0
|
作者：
Guo X. [1 ]
Meng X. [2 ]
Wang Y. [3 ]
Chang F. [2 ]
Huang T. [1 ]
机构：
[1] College of Information Science and Engineering, Yanshan University, Qinhuangdao
[2] College of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao
[3] Air Force Research Laboratory Armament Directorate, Beijing
来源：
Meng, Xiaogang (616886776@qq.com) | 1600年 / Chinese Mechanical Engineering Society卷 / 52期
关键词：
Coaxial helicopter; Displacement analysis; Equivalent DOF; Mechanism simulation; Reduced DOF hybrid mechanism;
D O I：
10.3901/JME.2016.01.047
中图分类号：
学科分类号：
摘要：
A new coaxial reduced degree of freedom (DOF) hybrid mechanism is put forward. The mechanism is a series formed coaxial hybrid mechanism which is composed of a 3-SPS+PS+RRS parallel mechanism and a hybrid mechanism. The overall mechanism has simple and compact structure, so it can be applied in the three blade coaxial unmanned helicopter. The restrain of 3-SPS+PS+RRS parallel mechanism is eauivalent restrain of PS subchain. The hybrid mechanism is decomposed into several equivalent parallel mechanisms. The degree of freedom of swashplate mechanism is analyzed by screw theory and the upper swashplate and lower swashplate are proved to keep the same posture. A conclusion is reached that the whole coaxial hybrid mechanism satisfying degrees of freedom of the operating mechanism of three blade coaxial helicopter under the consideration of the lower parallel mechanism. The position of upper operating mechanism is analyzed and the variation of the rotation angle of three pitchs is studied when the swashplate keep the inclined posture. The whole operation?mechanism is simulated through PRO/E. © 2016 Journal of Mechanical Engineering.
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页码：47 / 56
页数：9
相关论文
共 17 条
  • [1] Kim S.K., Tilbury D.M., Mathematical modeling and experimental identification of an unmanned helicopter robot with flybar dynamics, Journal of Robotic Systems, 21, 3, pp. 95-116, (2004)
  • [2] Saffarian M., Fahimi F., A comprehensive kinematic analysis of a model helicopter's actuating mechanism, Proceedings of 44th AIAA Aerospace Sciences Meeting and Exibit, pp. 1-25, (2008)
  • [3] Sabaapour M.R., Zohoor H., Analysis of a swashplate mechanism of a hingeless rotor hub with the flybar in a model helicopter, Journal of System Design and Dynamics, 4, 4, pp. 616-663, (2010)
  • [4] Guo X.J., Zhang Q., Du X., Et al., Analysis for dynamics performance indices of 3-RSS+PS+RRS parallel mechanism, ICIC Express Letters, 3, 3, pp. 793-798, (2009)
  • [5] Yang Y., Fan S., Du X., Et al., Analysis on size optimization of equivalent parallel mechanism of stationary ring of swashplate, Journal of Mechanical Engineering, 46, 7, pp. 48-54, (2010)
  • [6] Chang F., Jia H., Zhang D., Et al., Kinematic analysis of a new nested inner-outer ring mechanism, ICIC Express Letters, 3, 6, (2012)
  • [7] Guo X., Huang T., Chang F., Kinematics of a new hybrid mechanism with reduced DOF and nested dynamic connection, Journal of Mechanical Engineering, 49, 1, pp. 1-7, (2013)
  • [8] Chen M., Technology characteristic and development of coaxial rotor helicopter, Aeronautical Manufacturing Technology, 17, pp. 26-31, (2009)
  • [9] Lange C., Ranjbaran F., Angeles J., Et al., The kinematics of the swashplate mechanism of a VTOL unmanned aerial vehicle, Multi-Body System Dynamics, 3, pp. 333-365, (1999)
  • [10] Lange C., Angeles J., Ranjbaran F., Et al., The dynamics of the swashplate mechanism of a VTOL unmanned aerial vehicle, Multibody System Dynamics, 5, pp. 105-131, (2001)
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