摘要
为避免扭转振动可能造成的轴系疲劳损伤,设计了一款金属卷簧式减振螺旋盘,基于专业软件建立单元盘转子模型,对比卷簧式减振结构增加前后其静态和动态特性,验证卷簧结构的减振效果。结果表明:卷簧厚度的改变会呈现不同的减振效果,4 mm厚度卷簧结构的减振效果明显优于2.5 mm,且当卷簧结构固有频率与转子固有频率相近时,减振效果最为突出。
Aiming at the fatigue damage of the shafting caused by torsional vibration, the coil spring type of metal vibration-damping spiral disk was designed.A unit disk rotor model was established based on software.By comparing the static and dynamic characteristics of the structures without and with vibration absorption, the effects of vibration reduction are verified.The results show that the change of the spiral disk thickness parameter will present different damping effects.The damping effect of 4 mm spiral disk is clearly better than 2.5 mm.And it is pointed out that when the natural frequencies of the vibration reduction spiral disk and the rotor are close, the vibration reduction effect is more prominent.
作者
吴文健
刘淑莲
应光耀
蔡文方
WU Wen-jian;LIU Shu-lian;YING Guang-yao;CAI Wen-fang(State Grid Zhejiang Electric PowerResearch Institute,Hangzhou,China,Post Code:310014;School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology,Hangzhou,China,Post Code:310023;E.Energy Technology Co.Ltd.,Hangzhou,China,Post Code:310014)
出处
《热能动力工程》
CAS
CSCD
北大核心
2021年第4期94-97,共4页
Journal of Engineering for Thermal Energy and Power
关键词
轴系扭振
卷簧结构
减振效果
扭矩分析
谐响应
rotor torsional vibration
coil spring structure
vibration reduction effect
torque analysis
harmonic response
