Some methods of judging mechanical fault using spectrogram are introduced.
介绍了利用波谱图判断机械故障的几种方法。
Bispectrum and correlation spectrum are excellent for some mechanical fault forms.
三阶谱与相关谱对某些故障的分析很有效。
Transducer fault detection plays an important role in the mechanical fault diagnosis system.
传感器故障检测在机械故障诊断系统中具有重要意义。
If your mobile breaks down more than twice because of a mechanical fault, we will replace it.
如果你的手机出现两次以上的故障，我们将予以更换。
The study of wearing rules and mechanical fault diagnoses is based on wear particle analysis.
磨损规律和机械故障诊断等研究都离不开磨粒分析技术。
If your mobile breaks down more than twice because of a mechanical fault, we will replace it.
假如你的手机泛起两次以上的故障，我们将予以更换。
It is difficult to find the causes of failure for the mechanical fault maintenance of CNC machine.
数控机床机械故障维修的难点是查找故障产生的原因。
Mechanical fault diagnosis and monitoring plays an increasingly important position in industrial production.
机械故障诊断和监测在工业生产中占有越来越重要的地位。
The mechanical fault of some large motor bearings are detected and analyzed, the corresponding improvement is proposed.
通过对某大型电动机轴承的故障检测及分析，提出了相应改进措施。
Failure mechanism of vibration signal analysis is the mechanical fault diagnosis technology used in one of the main method.
故障机理的研究振动信号分析是机械故障诊断技术中采用的最主要的方法之一。
It is important to exactly extract impulse response information from complex vibration signals for mechanical fault diagnosis.
在复杂的振动信号中准确提取出冲击响应信息在机械故障诊断中具有重要的意义。
If the header height isn't adjusted properly, it may lead to enginery block and mechanical fault, directly affect harvesting efficiency.
联合收割机工作时往往因为割台高度调整不当，可能导致机器堵塞，引发机器故障，直接影响到收割机的收获效率。
In this paper, several time domain waveforms of vibration signal and its identification method in mechanical fault diagnosis are analysed.
本文主要论述了机械故障诊断中，几类振动信号时域波形的分析与识别方法。
Detection of weak impact fault is difficult but very important in mechanical fault diagnosis, and it is the major tool for early diagnosis.
弱冲击故障检测是故障诊断中既困难又十分重要的研究课题，是实现故障早期诊断的基本手段。
The character data of the probably fault and machine is acquired by analyzing mechanical fault characteristic frequency and sets configuration.
通过机械故障特征频率分析和机组组态，对可能存在的故障类别和机组类别的特征数据进行提取；
The results show that the method of the mechanical fault diagnosis based on fractal theory is more sensitive to initial fault type of complicated mechanical system.
研究结果表明：基于分形的机械故障诊断方法对复杂机械系统的早期故障更为敏感。
A recently developed hardware of the model system including the signal collecting and processing, designing principles etc for mechanical fault analysis is introduced.
论文介绍了一种最新研制的机械系统故障诊断模拟系统的硬件部分及其组成、设计和测量原理、信号采集和处理等。
The analysis results show that the energy operator demodulating approach based on EMD can extract the characteristics of mechanical fault vibration signals efficiently.
对机械故障振动信号的分析结果表明，基于EMD的能量算子解调法能有效地提取机械故障振动信号的特征。
The structure and algorithm of artificial neural network model were described, and the model and learning-procedure of mechanical fault diagnosis neural network were designed.
阐述了人工神经网络模型的一般结构和算法，并设计了机械故障诊断神经网络的模型和学习过程。
The technique present of mechanical fault diagnosis for numerically controlled machine tool was discussed, principle and methods of nc machine tool fault diagnosis were described.
分析了数控机床故障诊断技术研究现状，阐述了数控机床故障诊断的原则、故障识别的方法以及故障的诊断与维修技巧。
For the limitations of traditional methods in the mechanical fault diagnosis, it is proposed in this paper that the artificial neural network is used in the mechanical fault diagnosis.
针对传统的机械故障诊断方法的局限性，提出将人工神经网络应用于机械故障诊断中。
According to this theory, this paper gives an instance for analyzing a vibration signal of reciprocating compressor valve. The method is fairly effective in mechanical fault recognition.
借此理论，本文对较为复杂的往复式空气压缩机气阀振动信号作了分析，探讨了用于故障气阀自动识别的方法，收到了较好的效果。
Blind Sources Separation (BSS) provides a new alterative for extraction of certain signal components in the signal corrupted by noise, and presents a new method for mechanical fault diagnosis.
盲源分离应用于机械振动信号的预处理中，提供了一个新的处理机制，在机械状态监测和故障诊断中具有一定的价值。
This paper connected the fractal theory with the mechanical fault diagnosis, discussed the basic concept of the fractal dimension, introduced the concept of gridding dimension and its solution.
将分形的有关理论与机械故障诊断联系起来，论述了分形维数的基本概念，介绍了网格维数及其求取方法。
Several claim to build “passively safe” plants that need no human or mechanical intervention to close after a fault, but rely on the laws of physics to contain runaway reactions.
一些公司声称，已建立具有“被动安全（passively safe）”特性的核电站，发生故障时无须人为或机械干预即能自动停止，它依靠物理学定律来遏制失控反应。
"When you alter the fault line's mechanical state," he says, "it can cause fault activity to intensify and induce earthquakes."
他说：“当你改变了断裂层本身的力学状态的以后，就有可能导致断层开始活动并加剧其引发地震的可能性。”
When it comes to mechanical watch movement of fault areas will need to watch to professional maintenance watch repair centers for testing.
如果涉及到机械表机芯等故障的部位则需要将手表送往专业的手表维修中心进行检测维修。
Objective: To provide mechanical equipment maintenance and fault diagnosis of the theoretical basis and reference methods.
为机械设备维修人员提供故障诊断维修的理论依据和参考方法。
Objective: To provide mechanical equipment maintenance and fault diagnosis of the theoretical basis and reference methods.
为机械设备维修人员提供故障诊断维修的理论依据和参考方法。
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