Using the sensors of shaft position for simulation of misalignments of shafting supports of turbounits
- 作者: Kumenko A.1, Kostyukov V.1, Kuz’minykh N.1, Timin A.1, Boichenko S.1
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隶属关系:
- OOO Scientific-and-Production Center Dynamics
- 期: 卷 64, 编号 9 (2017)
- 页面: 659-669
- 栏目: Steam Turbine, Gas Turbine, Steam-Gas Plants and Accessory Equipment
- URL: https://journals.rcsi.science/0040-6015/article/view/172808
- DOI: https://doi.org/10.1134/S004060151709004X
- ID: 172808
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详细
Examples of using the method developed for the earlier proposed concept of the monitoring system of the technical condition of a turbounit are presented. The solution methods of the inverse problem—the calculation of misalignments of supports based on the measurement results of positions of rotor pins in the borings of bearings during the operation of a turbounit—are demonstrated. The results of determination of static responses of supports at operation misalignments are presented. The examples of simulation and calculation of misalignments of supports are made for the three-bearing “high-pressure rotor–middle-pressure rotor” (HPR–MPR) system of a turbounit with 250 MW capacity and for 14-supporting shafting of a turbounit with 1000 MW capacity. The calculation results of coefficients of the stiffness matrix of shaftings and testing of methods for solving the inverse problem by modeling are presented. The high accuracy of the solution of the inverse problem at the inversion of the stiffness matrix of shafting used for determining the correcting centerings of rotors of multisupporting shafting is revealed. The stiffness matrix can be recommended to analyze the influence of displacements of one or several supports on changing the support responses of shafting of the turbounit during adjustment after assembling or repair. It is proposed to use the considered methods of evaluation of misalignments in the monitoring systems of changing the mutual position of supports and centerings of rotors by half-couplings of turbounits, especially for seismically dangerous regions and regions with increased sagging of foundations due to watering of soils.
作者简介
A. Kumenko
OOO Scientific-and-Production Center Dynamics
编辑信件的主要联系方式.
Email: 1949kai@mail.ru
俄罗斯联邦, Omsk, 644043
V. Kostyukov
OOO Scientific-and-Production Center Dynamics
Email: 1949kai@mail.ru
俄罗斯联邦, Omsk, 644043
N. Kuz’minykh
OOO Scientific-and-Production Center Dynamics
Email: 1949kai@mail.ru
俄罗斯联邦, Omsk, 644043
A. Timin
OOO Scientific-and-Production Center Dynamics
Email: 1949kai@mail.ru
俄罗斯联邦, Omsk, 644043
S. Boichenko
OOO Scientific-and-Production Center Dynamics
Email: 1949kai@mail.ru
俄罗斯联邦, Omsk, 644043