The vibration fault of three-phase induction motor makes the equipment run unsafely.
三相异步电动机出现异常振动，使设备运行存在着不安全隐患。
Shafting abnormal vibration fault usually arises after the uprating on turbo-generator unit.
机组增容改造后易发生轴系异常振动。
The results indicate that the system is valuable and available at vibration fault diagnosis of NC machine.
通过对数控机床主轴承座的振动分析表明，该系统具有较高的应用价值。
In the turbine various fault, the vibration fault is a kind of production and operation of a great influence on the fault.
在汽轮发电机组的各种故障中，振动故障是一类对生产和运行产生很大影响的故障。
Axial vibration fault of rotating equipment is infrequent in industrial production, and there is no forthcoming treatment.
工业生产中，转动设备轴向振动故障并不多见，且没有现成的解决方案。
Based on fuzzy neural networks, a basic system used for vibration fault detection of rocket engines is proposed in this paper.
基于模糊神经网络提出了一种发动机振动故障检测的基本系统。
The vibration fault of a reducer is analyzed. A kind of coupled resonance of the intermediate transmission gear is discovered.
本文研究了某减速器的振动故障，发现并研究了其中介传动齿轮的耦联共振。
The abnormal low frequency vibration on tilting-pad bearing in a certain machine is measured and the vibration fault is diagnosed.
通过对某机组可倾瓦发生的非正常低频振动进行测试，诊断出了振动故障。
The operation characteristics, types of vibration fault, fault diagnosis and operation control of the primary dust-fan are discussed.
介绍了一次除尘风机运行特点、机组振动故障类型、故障诊断及运行控制。
The influence coefficient methods were applied in dynamic balance of hydrogenerator rotor at site to solve the vibration fault in this paper.
将影响系数法应用于水轮发电机转子现场动平衡，消除其振动故障。
This paper introduces developing processes and characteristics of the expert system of vibration fault diagnosis(ESVD)for turbine generators.
本文简要介绍了汽轮发电机组振动故障诊断专家系统外壳ESVD的研制过程及其特点。
An analysis is conducted of the types of symptoms in a vibration fault diagnostic system and the principles of symptom acquisition are proposed.
分析了振动故障诊断系统中征兆的类型，提出了征兆获取的原则，论述了征兆可信度计算的方法，提高了故障诊断的自动化水平。
This paper discusses two new applications of vibration techniques in reliability engineering: random vibration stress screening and vibration fault diagnosis.
本文讨论振动技术在可靠性工程中的两项最新应用，即随机振动应力筛选和振动故障诊断。
According to the compound vibration fault attribute, a method of compound vibration fault diagnosis based on information fusion and neural networks is proposed.
依据复合故障特性，提出了一种基于信息融合与神经网络的复合振动故障诊断方法。
Finally, the validity and feasibility of this method used for rotor vibration fault diagnosis were validated by calculating and analyzing the obtained examples.
最后，通过实例计算分析，验证了该方法在转子振动故障诊断方面是可行的和有效的。
Measure test results show that signal denoising with BWPB prior to fault measurement is advantageous to enhancing the accuracy of steam turbine vibration fault detection.
结果表明：在故障检测前先采用最优小波包基方法对故障信号进行消噪，有利于提高汽轮机振动检测的准确性。
According to the vibration features of hydraulic generator set, the paper discusses a method that is suitable for vibration fault diagnosis, namely fuzzy diagnosis method.
根据水轮发电机组的振动特点，探讨了适合于水轮发电机组的振动故障诊断方法，即模糊诊断法。
Furthermore, it is proved that the diagnosis method based on fuzzy theory is feasible and superior through a real example of vibration fault of an actual hydroelectric generating unit.
并以实际机组的振动故障为实例，验证模糊故障诊断方法的可行性和优越性。
The diagnosis system is able to collect fault data on-line and analyse the fault off-line, which achieves classification of turbine shafting vibration fault and detect early slight fault.
该系统能够在线采集故障数据，并进行离线的故障分析，实现了汽轮机组轴系振动故障的分类和发现早期轻微故障的目的。
The results showed that it is practicable to use the wavelet analysis method in vibration fault diagnosis, and it also has reference value on other complicated machines' vibration diagnosis.
结果表明，小波分析方法用于柴油机的振动故障诊断是有效可行的，对其他复杂机械的振动诊断同样具有参考价值。
The model categorizes the vibration fault according to its attributes, Narrows the range for searching fault by classification, then determines the fault by comprehensive multi-factor judgement.
该模型是按照故障征兆属性归类，通过分类识别缩小故障搜寻范围以利于故障的模糊诊断，然后再进行因子综合判断，对振动故障诊断的方法进行了研究。
Due to complexity of hydroelectric units vibration reasons, vibration fault is distinguished mainly by means of rotate speed experiment, load experiment and excitation experiment et al at present.
引起水电机组振动的原因复杂，目前主要是通过转速试验、负荷试验和励磁试验等试验手段来判别机组的振动故障。
The results of experimental research have shown that the fuzzy neural networks can be successfully employed in the vibration fault detection in the firing tests of a turbo pump liquid rocket engine.
实验研究结果表明：模糊神经网络可以成功地用于泵压式液体火箭发动机热试车的振动故障检测。
This paper describes the mechanism and diagnosis method of vibration of steam turbine arising from the moving parts on rotor and details the diagnosis of vibration fault of one 200 MW steam turbine.
论述活动部件引起振动的机理和诊断方法，详细介绍一台200MW机组振动故障的诊断。
The source of fault of the centrifugal compressor's vibration has been accurately pinpointed and the cause of the failure has been diagnosed by analyzing the centrifugal compressor's vibration fault.
针对离心式空压机振动故障进行分析，诊断出振动故障的原因，准确地找出了故障源。
A novel method of pattern recognition and fault diagnosis in electrical machine based on the wavelet-neural network is proposed according to the frequency spectrum characteristics of vibration signal.
针对电机振动信号的频谱特点，提出基于小波神经网络技术的电机故障模式识别与诊断的新方法。
Vibration response signal of impulse fault is generally time variant. It is difficult to early detect and diagnose by means of traditional methods.
冲击故障的振动响应信号是时变的，用传统的诊断方法一般难以进行早期发现和诊断。
Vibration is the main fault which affects the regular run and endangers the life-span of hydropower unit.
振动是影响水力机组正常运行和危害机组寿命的主要故障。
Vibration is the main fault which affects the regular run and endangers the life-span of hydropower unit.
振动是影响水力机组正常运行和危害机组寿命的主要故障。
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