摘要
某核电厂多台大型立式泵组由于结构共振导致电机振动超标,先后通过动平衡、支撑调整、扭矩调整等方式进行振动治理,降振效果不佳并且振动反复发生。鉴于结构共振传统治理方案的局限性,并结合核电机组运行的特点,决定采用调谐质量阻尼技术用于泵组的振动治理。经过现场测绘、模型设计、强度校核、仿真分析、制作测试以及现场验证,降振效果显著,同时现场实施方便,对设备无需改动。通过该案例的介绍,为旋转机械振动治理提供了一种新的借鉴方法。
The motor vibration of several large vertical pump units in a nuclear power plant exceeded the standard due to structural resonance,vibration control was carried out through dynamic balance,support adjustment,torque adjustment,etc.The vibration reduction effect was poor and the vibration occurred repeatedly.In view of the limitations of the traditional treatment for structural resonance,and in combination with the operation characteristics of the nuclear power unit,the tuned mass damping technique was adopted for vibration control of the pump unit.After on-site mapping,model design,strength check,simulation analysis,production test and on-site verification,the vibration reduction effect is significant,and the on-site implementation is convenient,without changing the equipment.Through the introduction of this case,a new reference method is provided for vibration control of the rotating machinery.
作者
刘明利
张辉仁
夏莹沛
郭瑞
张成林
LIU Mingli;ZHANG Huiren;XIA Yingpei;GUO Rui;ZHANG Chenglin(Shandong Nuclear Power Co.Ltd,Yantai of Shandong Prov.265116;Southeast University Vibration National Engineering Research Center,Nanjing of Jiangsu Prov.210001;Jiangsu Zhenbo Technology Intelligence Co.Ltd.,Nanjing of Jiangsu Prov.210000,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2024年第1期168-179,共12页
Nuclear Science and Engineering
基金
国家自然科学基金(51875100)
江苏省基础研究计划(自然科学基金)青年基金项目(BK20210240)。
关键词
调谐质量阻尼器
振动
固有频率
仿真分析
Tuned mass damper
Vibration
Natural frequency
Simulation analysis