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Journal of Mechanical Science and Technology

, Volume 28, Issue 7, pp 2493–2499 | Cite as

Frequency capture characteristics of vibration system with two degrees of freedom

  • Sun ZhijunEmail author
  • Hou Li
  • Wei Yongqiao
  • Li Bo
  • Jia Fenglan
Article
  • 160 Downloads

Abstract

In this study, the dynamical model of the vibration of the wind power system was established according to the Lagrange’s principle for investigating the phenomenon of frequency capture. The system response of the vibration of wind power device in the horizontal and vertical directions of tower was analyzed by numerical simulation. At the same time, the paper analyzed the characteristics of the vibration model comparing with the traditional model. Then the conditions of frequency capture were studied through the analysis of mathematical model. In particular, the effects that five key parameters had on the frequency capture characteristics were analyzed. Finally, the research reveal that reducing the eccentric mass and eccentricity of the blade, increasing the support stiffness and displacement damping coefficient, and increasing the torque of the input shaft can reduce vibration and avoid the phenomenon of frequency capture. The simulation results provide the theory basis for the design and installation of wind power device.

Keywords

Frequency capture Simulation Vibration system Wind power system 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Sun Zhijun
    • 1
    Email author
  • Hou Li
    • 1
  • Wei Yongqiao
    • 1
  • Li Bo
    • 1
  • Jia Fenglan
    • 1
  1. 1.School of Manufacturing Science and EngineeringSichuan UniversityChengduChina

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