电涡流阻尼器抑制立式凝泵振动的试验研究  

Experimental Study on the Suppression of Vertical Condensing Pump Vibration by Eddy Current Dampers

作　　者：汪帅 沈德明 杨建刚[1] WANG Shuai;SHEN Deming;YANG Jiangang(School of Energy and Environment,Southeast University,Nanjing 210096,China;Key Laboratory of Thermal Process Intelligent Control of Jiangsu Province,Nanjing SciyonWisdom Technology Group Co.,Ltd.,Nanjing 211106,China)

机构地区：[1]东南大学能源与环境学院,南京210096 [2]南京科远智慧科技集团股份有限公司江苏省热工过程智能控制重点实验室,南京211106

出　　处：《噪声与振动控制》2023年第6期247-252,共6页Noise and Vibration Control

摘　　要：为解决电厂立式凝结水泵振动问题,开展涡流阻尼器的减振试验研究。模拟立式凝泵结构搭建试验台,通过改变电涡流阻尼器阻尼比、质量比和主系统振幅探究这3个因素对减振效果的影响。结果表明,电涡流阻尼器可以抑制立式凝泵在共振区间内的振动;阻尼比对减振效果影响较大,存在一个最佳阻尼比使减振效果最佳;一定范围内质量比越大减振效果越好,超过这个范围后继续增加质量比带来的减振效果已不具性价比;主系统原始振动大小对减振效果影响较小。In order to solve the vibration problem of the vertical condensate pumps,an eddy current damper was designed and the experimental study was conducted.The rotor bench was established to simulate the structure of a vertical condensate pump.By changing the damping ratio,mass ratio of the eddy current damper and main system vibration amplitude,the effects of these three factors on the vibration reduction performance were investigated.The results show that eddy current damper can suppress the vibration of the vertical condensate pump in the resonance range.The damping ratio has a great influence on the vibration reduction performance.There is an optimal damping ratio to make the vibration reduction performance best.In a certain fixed range,the vibration reduction performance can be improved by increasing the mass ratio.When exceeding this range,the vibration reduction performance induced by continuously increasing the mass ratio is no longer cost-effective.The original vibration magnitude of the main system has little influence on the vibration reduction performance.

关 键 词：振动与波 立式凝泵 振动抑制 电涡流阻尼器 阻尼比 质量比 

分 类 号：TB535[理学—物理] TH703.63[理学—声学]