By means of comparing the vibration mode with the dynamic balance tests, the root reason was found to be the bigger 2nd mode mass unbalance o.
通过对轴系振型分析和现场动平衡试验比较,诊断该振动的根本原因是发电机转子存在较大二阶质量不平衡,它是制造厂出厂前动平衡质量不佳,导致残余振动过大的结果。
The causes include principally: mass unbalance of rotor, rubbing between moving and stationary parts, oil whirling, steam-excited vibration, shafting uncentering, seal device rubbing, heat unbalance of rotor, structure synchronous vibration, rotor crack and so on.
通过分析多台汽轮发电机组的振动,找出引起机组振动的各种原因,主要包括:转子质量不平衡、动静部件碰磨、油膜震荡、汽流激振、轴系不对中、密封装置摩擦、转子热不平衡、结构共振、转子裂纹等,研究各种原因的振动特征,为准确判断振动原因提供依据。
The expression of imbalance mass and the degree can be deduced by the three-mass-points methods.
本文针对离心式风机叶轮因失衡引起振动,采用"三点法"找平衡时的理论原理探讨,推导出不平衡质量及所处角度的计算公式,进而确定平衡质量及所处角度,规定了操作方法,并通过实际数据验证了公式的正确性。
The Vibration caused by the unbalance-mass has remarkable effect on the performance of reducer.
不平衡质量引起的振动对减速器的工作性能影响极大。
Fault Research of Turbo Supercharger Rotor Mass Imbalance
涡轮增压器转子质量不平衡故障分析
Research on Mass Unbalance Compensation of Spindle Suspended by Positive Magnetic Bearing
主动磁轴承转子质量不平衡补偿研究
The error torques include mass unbalances, compliances, bias torque, etc.
误差力矩包括质量不平衡，柔性，偏置力短，等等。
Influence analysis of the mass imbalance torque on the performance of seeker servo mechanism
质量不平衡力矩对导引头伺服机构性能影响分析
mass flow imbalance alarm
质量流量不平衡报警器
unbalance component measuring device
不平衡分量测量装置
unbalance vector measuring device
不平衡矢量测量装置
Quality of electric energy supply--Admissible three-phase voltage unbalance factor
GB/T15543-1995电能质量三相电压允许不平衡度
Method Research into Farmland Quality Dynamic Balance in Different Agricultural Ecological Sections;
不同农业生态区耕地质量占补平衡方法研究
The Study on the Farmland Quality Dynamic Balance in Different Agricultural Ecotype Section;
不同农业生态区耕地质量占补平衡探讨
Input and Output Balance of Mercury in Different Evolution Reservoirs in Wujiang River Watershed
乌江流域不同演化阶段水库汞的质量平衡研究
Detection and Analysis of Power Quality Three-Phase Imbalance Based on LabVIEW8.5
基于LabVIEW8.5的电能质量三相不平衡度检测与分析
minimum achievable residual unbalance
最小可达剩余不平衡量
n-th nodal unbalance
第n阶振型不平衡谐量
Moreover, it should be acknowledged that what really counts in academic education is not quality but the intellectual level in humanities and sciences.
衡量学术教育的标准不是“质量”,而是在人文和科学方面的理智水平。
Effects of Different Balanced Fertilization Methods on the Yield and Quality of Lonicera Japonica Thunb;
不同平衡施肥方式对金银花产量和质量的影响研究
Balance quality of rigid rotors--Determination of permissible residual unbalance
GB/T9239-1988刚性转子平衡品质许用不平衡的确定
The irrational distribution of crankshaft counterbalance weight causes greater vibration.
曲轴平衡块质量分布不合理,会引起发动机振动大。
