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标 题： Assessment of Natural Oscillation Frequencies of Rotor for Development of Hard-Bearing Balancing Machine
转子自然振荡频率的评估用于开发刚性轴承平衡机
作 者： S. O. Gaponenko
A. E. Kondratiev
I. R. Tazeev
关键词： Hard-bearing balancing machine  [硬质平衡机]
Vibration  [ 振动]
Natural oscillation frequencies  [ 自然振荡频率]
Unbalance  [ 失衡]
Rotor  [ 转子]
Frequency range  [ 频率范围]
Autodesk inventor CAD  [ Autodesk Inventor CAD]
ANSYS  [ ANSYS]
出版年： 2020
文集名： Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2019)
第五届工业工程国际会议论文集（ICIE 2019）
会议名： 5th International Conference on Industrial Engineering (ICIE 2019)
第五届工业工程国际会议（ICIE 2019）
届 次： 5th
摘 要： An imbalance appears during the manufacture, operation, and maintenance of power equipment. The rotor imbalance arises due to the unbalanced masses of the rotor which leads to the emergence of variable loads on the supports and bending of the rotor. The dynamic balancing of the rotor on the balancing machine is the way to avoid the negative effects of centrifugal forces. The balancing machines in resonant and soft-bearing modes are usually used on modern production. However, the soft-bearing method of balancing has a number of shortcomings, which can be solved by using the hard-bearing method. In particular, by using the hard-bearing method, it is possible to balance products with large initial imbalances and to increase the accuracy of balancing. The Autodesk Inventor CAD software was used for modeling of the balancing machine and the rotor. The modal analysis was conducted by using the block method of Lanczos on the basis of the ANSYS. The main assumption during the modal analysis process was that the form of free fluctuations is calculated in relative units and does not allow one to determine absolute shifts. The application of soft-bearing balancing method needs to be added in other ways, taking into account high requirements of the power equipment. A model of a hard-bearing balancing machine was designed for balancing rotors and rotating elements of power equipment. The natural oscillation frequencies of the 3D models of the balancing machine bed and the rotor of the gas turbine engine 16M were calculated to determine the informative frequency range that the rotor should be hard-bearing balanced.

在电力设备的制造、运行和维护过程中会出现不平衡现象。转子不平衡是由于转子质量分布不均所致，从而导致支撑结构承受变幅载荷并引起转子弯曲。通过使用平衡机对转子进行动态平衡，可以避免离心力带来的不良影响。现代生产中通常采用共振模式和软轴承模式的平衡机。然而，软轴承法存在诸多不足，可通过硬轴承法加以解决。特别是采用硬轴承法，能够有效平衡初始不平衡量较大的产品，并提高平衡精度。本研究使用Autodesk Inventor CAD软件对平衡机和转子进行建模，基于ANSYS采用兰氏块法进行模态分析。模态分析过程中的主要假设是：自由振动形式以相对单位计算，因此无法确定绝对位移。软轴承平衡法的应用需结合其他方法，以满足动力设备的高要求。为此，设计了一种硬轴承平衡机模型，用于平衡动力设备的转子和旋转部件。通过计算燃气轮机发动机16M的转子及平衡机床3D模型的固有振荡频率，确定了转子应进行硬轴承平衡的信息频率范围。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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