透平试验件对试验台横振不平衡响应的影响  

Influence of a Turbine Test Piece on the Unbalanced Response of Transverse Vibration of a Test Rig

作　　者：刘应 石䶮 狄广强 梁尔访 李正美[1] 刘长利[1] 周心洁 LIU Ying;SHI Yan;DI Guangqiang;LIANG Erfang;LI Zhengmei;LIU Changli;ZHOU Xinjie(School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China;China United Gas Turbine Technology Co.LTD,Shanghai 201306,China)

机构地区：[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

出　　处：《华东理工大学学报(自然科学版)》2024年第5期779-786,共8页Journal of East China University of Science and Technology

基　　金：国家自然科学基金(52075176)。

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,需要考虑不同试验件对试验台横振不平衡响应的影响。本文利用机械阻抗综合法的阻抗匹配原理,将未知试验件的动力学特性模化为交界面上的机械阻抗,来确定试验件对试验台横振不平衡响应的影响,得出未知试验件的设计限制范围。同时,建立了某个试验件和试验台的动力学模型,分析了该系统的横向振动不平衡响应,验证了试验件不平衡响应的设计限制范围的有效性。The turbine test rig system of heavy-duty gas turbine consists of a test rig and a test piece.It is necessary to meet the experimental requirements of different test pieces for the test rig.Therefore,when a new test piece is designed,its influence on the unbalanced response of the test rig must be considered.The dynamic characteristics of the test piece considered as the mechanical impedance at the location of the test rig and the test piece,and the impedance matching principle of mechanical impedance composite method at the location is utilized to determine the mutual influence of the damped unbalanced response,thus the design limitation conditions of the unknown test piece are obtained.Meanwhile,the dynamic model of a test piece and the test rig is established,to obtain the damped unbalanced response of the system,and the results verify the effectiveness of the design limitation conditions of the damped unbalanced response of transverse vibration of the test piece.

关 键 词：透平试验台 横向振动 不平衡响应 机械阻抗综合法 传递矩阵法 

分 类 号：TH113.1[机械工程—机械设计及理论]