Frequency capture characteristics of vibration system with two degrees of freedom

Autor:	Jia Fenglan, Wei Yongqiao, Li Bo, Sun Zhijun, Hou Li
Rok vydání:	2014
Předmět:	Engineering Wind power Computer simulation business.industry Mechanical Engineering media_common.quotation_subject Stiffness Displacement (vector) Vibration Mechanics of Materials Control theory medicine Torque Eccentricity (behavior) medicine.symptom business Tower media_common
Zdroj:	Journal of Mechanical Science and Technology. 28:2493-2499
ISSN:	1976-3824 1738-494X
DOI:	10.1007/s12206-014-0607-3
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36084305573c8b066830364e48acd402 https://doi.org/10.1007/s12206-014-0607-3 Zobrazit plný text záznamu Full text from SpringerLink