The accuracy of traditional spectrum analysis for the diagnosis of reciprocating pump valve is not satisfied for the interference of the noise and the vibration of the adjacent parts.
往复泵泵阀振动信号的常规频谱分析，由于故障特征信息往往被淹没于强大的噪声以及相邻部件的干扰而使诊断精度大打折扣。
Stop the pump to check if there is any abnormity noise or vibration during operation.
在运转中，如发现有异常声响和振动时，应立即停车。
Through piping model test and pump unit trial it is shown that with the two types of isolating shims the vibration acceleration of the piping system can be reduced evidently.
经管路模型试验和水泵机组试验证明，这两种隔振垫可使管路系统振动加速度级明显下降。
泵不正常振动。
If fan blade assembly is replaced because of mechanical damage, water pump and viscous fan drive should also be inspecteThese components could have been damaged due to excessive vibration.
如果因为机械损坏而更换风扇叶片组合，应该检查水泵及粘性风扇驱动，这些组件可能由于过度抖动而损坏。
Pump rotor is provided with low windability to achieve smooth operation, little vibration, low noise and long service life.
泵转子具有较小的绕度，运行平稳、振动小、噪音低、使用寿命长。
There are many factors that influence impact and vibration in hydraulic systems, such as pump structure, valve parameters, load, pipe design and operation conditions.
影响液压系统冲击、振动的因素很多，如泵的结构、阀的参数及负载情况和整个系统管路设计的合理性、工作条件等。
Sliding bearing instead of the conventional rolling bearing, making pump working more smoothly with very little vibration and noise.
用滑动轴承替代常规电机滚动轴承，使泵具有运行特别平稳，振动噪音极低。
Vortexing Can cause unstable pump operation, vibration, pulsation and severe mechanical damage.
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。
The impulse motion and the unbalanced vibration of the pump generate certain structural noise which could be significantly expressed in frequency spectrum.
泵的脉动运动与不平衡振动产生了结构噪声，结构噪声在频谱中清晰显示出来。
Vibration and other fault of diaphragm pump set is the main factor which affect the factory to run safely and stably.
隔膜泵机组的振动以及其它故障是影响机组安全、稳定运行的主要因素。
Using numerical simulation technology, we study a method for predicting the structural fatigue life of a fuel pump bracket(FPB) that contains rubber cushion for vibration reduction.
针对一类含橡胶减振垫燃油泵托架出现疲劳断裂的现象，研究利用数值仿真技术预测结构疲劳寿命的方法。
The test and analysis about the vibration damping and noise reduction of the canned coolant pump are studied.
对核动力装置屏蔽式冷却剂泵的减振降噪进行了测试与分析。
Helical Roots pump has great improvements on the face of stabilizing pressure pulse quality of passing cut sensitivity medium, reducing noises and vibration, avoiding vapor fret etc.
螺旋式罗茨泵在稳定过流剪切敏感介质压力脉动质量，减少噪音、振动，避免气蚀等方面有较大改善。
Vibration signal and its characteristic information in the course of running of feed water pump are significant for the state monitoring of the feed water pump system.
给水泵在运行过程中的振动信号及其特征信息对给水泵系统的状态监测有重要意义。
Fault diagnosis of main pump of the primary system of reactor which runs at normal condition is studied by the vibration, analysis technique.
应用振动监测技术，通过参数分析、信号分析及谱分析，对反应堆一循环在役主泵的故障进行了分析诊断。
A systematic analysis is made of the causes for the frequent damage of dry-gas seals, axle vibration and gradual decrease in pump delivery encountered during the test run.
对试车中遇到的干气密封频繁损坏、轴振动、泵输出量逐渐下降等原因进行了系统分析。
The methods to enhance the modeling precision for the universal GM(1,1) applied to predicting the development of a mechanical pump based on vibration features were studied.
建立了基于机械系统振动特征量的时间序列趋势预测GM（1，1）并进行了后验差精度检验；
The paper talks about how to Measuremachine groups vibration on of pump room structure Xiaolishan pump station in by means of vibration test.
应用振动测试方法，对小砾山泵站机组振动对泵房结构影响进行了测试及分析。
The connecting part between pump and network is equipped with flexible rubber joint and support suspended frame to reduce vibration and noise.
水泵等震动设备与管道连接处，采用可曲桡橡胶接头及减震支吊架以减震降噪。
The noise and vibration tests show that this transitional curve is better than normal ones, which provides the reference for studying high performance rigid rotator model vane pump.
通过噪声和振动实验验证该定子过渡曲线优于目前刚性转子式叶片泵的过渡曲线，对研制高性能刚性转子式叶片泵结构理论有参考价值。
The original pump is running about a year there when the strong vibration, seal leakage, and significantly reduce pump efficiency and other issues, we must overhaul downtime.
原泵运行约一年的时就出现振动强、轴封泄漏大、泵效率大大降低等问题，必须停机检修。
The experiment results show: (1) There is a very strong causality relationship between vibration and noise of the pump. The noise is mainly radiated from the vibrating surfaces of the pump.
试验结果说明：（1）泵的振动和噪声间存在着很强的因果关系，泵的噪声主要由其振动表面辐射所出；
The clearance between the axis and the seal was adjusted based on the diagnosis result, and the vibration value of the pump was lowered to an allowable range.
根据诊断结果调整了轴与密封的间隙，使泵的振动值降至允许范围内。
The article analyzes reasons that lead to operating vibration of a marine centrifugal pump, and proposes practical measures and suggestions to anti-vibration.
文章分析了船用离心泵产生运行振动的原因，提出了一些减缓和消除运行振动的方法和建议。
Contributes to a research on the vibration radiation noise of piezoelectric pump. Two theory models are introduced, which calculate the synthetic sound pressure according to the vibration quantity.
研究压电泵振动放射噪声，提出两种由振动量计算压电泵合成声压的理论模型。
The dynamical properties of oilwell pump under quasi-steady landing top movement is analyzed using mechanical vibration theory.
应用机械振动理论，对准匀速悬点运动下抽油泵的动力特性进行了分析。
The vibration signals of hydraulic pump with different fault types have different complexity. The multi-scale entropy is introduced into the fault identification of hydraulic pump.
针对不同故障类型下的液压泵振动信号具有不同复杂性的特点，将多尺度熵引入到液压泵故障识别中。
The vibration signals of hydraulic pump with different fault types have different complexity. The multi-scale entropy is introduced into the fault identification of hydraulic pump.
针对不同故障类型下的液压泵振动信号具有不同复杂性的特点，将多尺度熵引入到液压泵故障识别中。
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