通过对某机组运行中发生的不稳定振动进行分析，结合现场数据，诊断出了振动故障。
The vibration malfunction was diagnosed through the analysis of unstable vibration in the operation of a unit and the field data.
流体运动的不稳定性造成压力冲击，引起管道与设备振动。
Unsteady flowing has pressure lash, it can cause the quake of pipe and equipment.
高温、高压、高压差的蒸汽调节阀中的流动不稳定导致异常的振动，造成阀门的磨损及阀杆破坏以及流动中的压损。
The unsteady flow in the high pressure steam valve cause unusual vibration, the valve pole to be destroyed, the pressure while flowing to be lost, etc.
计算结果较好地反映了竖井周围岩体不稳定关键块在爆破振动作用下沿断层破坏、崩落的动力学过程。
The result of blasting simulation clearly shows the movement of the silo is due to the unsteadiness jointing rock mass under applied blasting vibration load.
涡流可能会导致泵运行不稳定、振动、跳动和严重的机械破坏。
Vortexing Can cause unstable pump operation, vibration, pulsation and severe mechanical damage.
引入冗余照明的概念，以实现波带板的空间相干照明以及降低束线对光源不稳定性及元件振动的要求。
The concept of redundant illumination is introduced to ensure the coherent illumination of zone plate and reduce the effect of source instability and element vibration.
文章从动力学中固液耦合振动的角度出发，研究了油管柱内流体不稳定流动引起的油管柱振动问题。
A problem about tubing string vibration caused by the fluid unsteady flow inside tubing string is studied from the Angle of solid liquid coupling vibration in dynamics.
从弹箭空间摆动和弹性振动耦合的动力学模型出发，对弹箭飞行过程中的共振不稳定性问题进行了研究。
Based on the coupled dynamic model for the spatial rotation and elastic vibration of a body, the resonance unstability of projectiles in flight is studied in the paper.
汽缸膨胀不畅和轴封漏汽使轴系热态中心不稳定导致轴系振动。
The shafting vibration is caused by non-stability of shafting thermal state center produced by impeded casing expansion and steam leakage of the shaft gland.
本文研究一类不稳定型高阶中立型微分方程正解的存在性与有界振动。
In this paper, we study the existence of positive solutions and the bounded oscillation of a class of high order unstable type neutral differential equations.
测试结果表明，调节阀处于不稳定工作状态即阀杆振动工况取决于脉动压力与阀杆固频率是否同频，并非其脉动压力值大小；
These results show that the vibration of control valve rod depends on if its frequency and one of dynamic pressure pulse is same but not the magnitude of pulse value.
本文研究一类不稳定型二阶中立型微分方程正解的存在性与有界振动。
In this paper, we study the existence of positive solutions and the bounded oscillation of a class of second order unstable type neutral differential equations.
该方法采用预测控制消除柔性机械手的弹性振动，可避免逆动力学和I/O反馈线性化控制遇到的零动力学不稳定问 题。
The predictive control is utilized to damp the flexible vibrations. The instability of the zero dynamics encountered in the inverse dynamics control and I/O feedback linearization can be avoided.
当钻井作业参数落在动力不稳定区时，钻柱将发生破坏性振动。
When the well drilling parameters appears in the dynamically unstable zones, the destructive vibrations would take place.
本文就大直径重负荷砂轮高速回转试验机设计过程中出现的振动问题，从理论上对多种影响整机刚性的不稳定因素进行了分析研究；
This paper presents an analysis and study on the vibration and unstable factors which affects the stiffness of the speed Tester for high speed heavy load large grinding wheels;
在反馈控制形式中，随着振动频率的增大，次通道的延迟作用可能使系统不稳定。
In the feedback control scheme, the time delay effect of the secondary path may cause the system unstable when the vibration frequency increases.
在反馈控制形式中，随着振动频率的增大，次通道的延迟作用可能使系统不稳定。
In the feedback control scheme, the time delay effect of the secondary path may cause the system unstable when the vibration frequency increases.
应用推荐