Research on Continuous Torsional Vibration Modeling and Simulation of Rotary Machinery

China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (1): 30-34.

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Research on Continuous Torsional Vibration Modeling and Simulation of Rotary Machinery

Hou Dongxiao;Liu Bin;Shi Peiming

Yanshan University, Qinhuangdao, Hebei, 066004

Online:2010-01-10 Published:2010-01-22
Supported by:

Hebei Provincial Natural Science Foundation of China（No. F2008000882）;
Hebei Provincial Foundation of Ministry of Education of China（No. ZH2007102，ZH2007496）

旋转机械传动系统连续扭振动力学建模与仿真

侯东晓;刘彬;时培明

燕山大学，秦皇岛，066004

基金资助:
河北省自然科学基金资助项目(F2008000882)；河北省教育厅基金资助项目(ZH2007102，ZH2007496)
Hebei Provincial Natural Science Foundation of China（No. F2008000882）;
Hebei Provincial Foundation of Ministry of Education of China（No. ZH2007102，ZH2007496）

Abstract

Abstract:

A novel continuous torsional vibration dynamics model of rotary machinery was established,which was based on the Lagrange equation. And arbitraty shaft's torsional formula of drive system was obtained by transfer function method. Then a nonlinear continuous dynamics model considering clearance of drive system was established. Compared to lumped mass model, the natural frequency of the continuous model is more accurate, and it can decrease the calculational errors which are caused by human factors. A numerical example indicates that the method can reflect more complex characteristics of the torsional vibration, and it provides a new method for analysing torsional vibrations.

Key words: rotary machinery, drive system, continuous, torsional vibration, clearance

摘要：

在考虑传动系统连续分布质量的基础上，采用拉格朗日方程建立了旋转机械传动系统的连续动力学模型。通过传递函数法推导出任意轴上的扭振响应公式,并得到了存在间隙时传动系统的连续动力学模型。该连续模型能更精确地求解传动系统的固有频率，同时可有效减小传动系统自由度数量的变化对系统基频的影响。仿真结果表明，该连续模型能更丰富地反映出传动系统的扭振特性，为分析旋转机械传动系统扭振问题提供了一种新的途径。

关键词:

旋转机械, 传动系统, 连续性, 扭振, 间隙

CLC Number:

TH113.1

HOU Dong-Xiao, LIU Ban, SHI Pei-Meng.

Research on Continuous Torsional Vibration Modeling and Simulation of Rotary Machinery

[J]. China Mechanical Engineering, 2010, 21(1): 30-34.

侯东晓, 刘彬, 时培明.

旋转机械传动系统连续扭振动力学建模与仿真

[J]. 中国机械工程, 2010, 21(1): 30-34.

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Research on Continuous Torsional Vibration Modeling and Simulation of Rotary Machinery

旋转机械传动系统连续扭振动力学建模与仿真

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