传递矩阵法验证发电机轴系扭振特性

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Abstract In recent years, safety accidents caused by the occurrence of torsional vibration of generator shafting have a major impact on the economy and safety. Therefore, this paper studies the intrinsic characteristics of the generator shafting system and its vibration mode. This paper mainly uses two methods to study the torsional vibration characteristics of generator shafting. The first one is to calculate and analyze the Riccati transfer matrix method to obtain the natural frequency and mode shape of the generator shaft system. The second is to use Ansys software to establish the 3D solid model of the generator shaft system, and then use the limit software to analyze the generator shaft system, obtain the torsional vibration characteristics of the generator shaft system, and the vibration patterns of the first few orders. Finally, the results of torsional vibration characteristics obtained by two different methods, the amount of calculation, and the occupancy of computer resources are compared.

Key words： continuous mass model generator shafting torsional vibration finite element method transfer matrix method

Received: 21 March 2019 Published: 29 September 2019

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	Articles by authors
	Cheng Shengjie
	Li Juan
	Jiao Shaohua

Cite this article:

Cheng Shengjie,Li Juan,Jiao Shaohua. Transfer matrix method verifies the torsional vibration characteristics of generator shafting[J]. Electrical Engineering, 2019, 20(10): 19-24.

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http://dqjs.cesmedia.cn/EN/Y2019/V20/I10/19

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