文献类型：期刊文献

中文题名：透平试验件对试验台横振阻尼临界转速的影响

英文题名：Influence of a Turbine Test Piece on the Damped Critical Speed of Transverse Vibration of a Test Rig

作者：张润泽[1];石?[2];李夫庆[2];梁尔访[1];李正美[1];刘长利[1];彭生红[2];狄广强[2]

机构：[1]华东理工大学机械与动力工程学院,上海200237;[2]中国联合重型燃气轮机技术有限公司,上海201306

年份：2025

卷号：51

期号：3

起止页码：411

中文期刊名：华东理工大学学报(自然科学版)

外文期刊名：Journal of East China University of Science and Technology

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金(52075176)。

语种：中文

中文关键词：透平试验台;横向振动;阻尼临界转速;机械阻抗综合法;重型燃气轮机

外文关键词：turbine test tig;transverse vibration;damped critical speed;mechanical impedance synthesis analysis;heavy-duty gas turbine

摘要：重型燃气轮机透平试验台系统由试验台和试验件两部分构成。对于已经建成的试验台,需要满足不同试验件的试验需求。通过分析试验件在试验台和试验件交界面处的机械阻抗来描述动力学特性,利用机械阻抗综合法中的阻抗匹配原理来确定交界面处横振临界转速的相互影响,得出未知试验件的设计限制范围。同时,建立了某一试验件和试验台的动力学模型,分析了该系统的有阻尼临界转速,验证了试验件在阻尼临界转速设计限制范围内的有效性,为透平试验件的设计提供了指导。
The turbine test rig system for a heavy-duty gas turbine consists of a test rig and a test piece.The dynamic characteristics of the test piece are represented as mechanical impedance at the interface between the test rig and the test piece.The impedance matching principle of mechanical impedance synthesis analysis at this location is utilized to determine the mutual influence of the damped critical speeds,thus the design limitation conditions of the unknown test piece are obtained.Meanwhile,the dynamic models of the test pieces and the test rig are established to obtain the damped critical speed of the system.The results validate the effectiveness of the design constraints for controlling transverse vibration damped critical speeds in the test piece.These conclusions provide guidance for the design of turbine test pieces.