Stability analysis of the turbine rotor system with foundation support under impact excitation. Issue 1 (1st November 2022)

• Record Type: Journal Article
• Authors: Xu, Siyu; Wang, Mingxin; Li, Kai; Han, Qingpeng; Tong, Xin; He, Keyuan; Zhu, Rui
• Is Part Of: Journal of physics. Volume 2369: Issue 1(2022)
• Publication Date: 2022-11-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2369/1/012024
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract : Considering the stability changes of the whole steam turbine system with and without shock excitation, based on the combined methods of modeling simulation, multi-point analysis and multi-feature map analysis, the support structure of the whole steam turbine rotor under the action of unbalance and shock excitation is analyzed. Stability changes were analyzed. By analyzing the time-domain waveform, frequency spectrum and axis locus of the model casing, the typical support points of the high-pressure rotor section and the low-pressure rotor section under the sudden shock excitation and unbalanced force, the time-domain waveform, frequency spectrum and axis locus of the axis can be grasped. The influence on the structural stability and vibration characteristics of the steam turbine can provide a reference for the shock resistance design of the whole steam turbine system.