扭振实验台阻尼特性的分析与调整  

Analysis and Adjustment of Damping Characteristics at Torque and Vibration Experimental Table

作　　者：鲍文[1] 闫志刚[1] 于达仁[1] 宁文[2] 

机构地区：[1]哈尔滨工业大学,150001 [2]哈尔滨汽轮机有限责任公司,150046

出　　处：《黑龙江电力技术》1998年第2期65-69,共5页

基　　金：国家自然科学基金!59576043

摘　　要：在扭振实验台上常用直流电动机模拟原动机，直流电动机自身存在惯性特性和转速反馈，使系统高频特性发生改变，加大了扭振的稳定性并增大了轴系模态阻尼，本文分析了这一影响，并采用增加控制信号的方法修正系统的高频特性，调整轴系模态阻尼，从而更加准确地模拟轴系扭振特性。At the torque and vibration experimental table, DC motors are of tenused to stimulate the prototype and the motors have inertial characteristics and ro-tating speed feedback,which makes system high-frequency characteristics varied,torque and vibration stability and axial simulation state damping increased. The pa-per analyzed this effect, rcvised the system high - frequency characteristics by in-creasing controlling signals,adjusted the axial simulation state damping so as to ex-actly simulate the axial vibration characteristics.

关 键 词：扭振实验台 阻尼特性 直流电动机 汽轮发电机组 

分 类 号：TM311.014[电气工程—电机]