故障的

By applying the difference arithmetic to solve the differential vibration model of the single-degree-of-freedom,the acceleration responses of the vibrated bevel wheel was calculated.The bevel wheel contact fault was simulated by taking it as the impulsion loading in local point.By using techniques of wavelet de-noising and demodulated resonance,gear contact character information was picked up successfully.

从齿轮的单自由度振动模型出发，运用差分算法对模型进行求解，得到斜齿轮的振动加速度响应，将齿面接触型故障等效为在局部点突加一个冲击载荷，对齿轮齿面接触型故障进行了仿真，利用小波降噪和共振解调技术分别对仿真的染噪振动加速度信号进行处理，成功地提取了轮齿接触故障的信息。

The average amount of propagation of the line outages is estimated from the data. The distribution of the total number of line outages is predicted from the propagation and the initial outages using a Galton-Watson branching process model of cascading failure.

论文以国内某区域电网9年的历史数据作为样本数据，采用分支过程模型估计该区域电网连锁故障的传播速率及连锁故障灾难度的概率分布，揭示该电网的连锁故障风险水平。

The equipment's failure diagnosis technique is one of the basic measures to guarantee equipments safety circulate.It can make earlier period forecast and judgement to the equipments, put forward the counterplot for avoiding or reducing the occurrence of the trouble.

设备故障诊断技术是保障设备安全运行的基本措施之一，它能对设备故障的发展作出早期预报，对出现故障的原因作出判断，提出对策建议，避免或减少事故的发生。

By using the steepest descent rule, the estimated second-truncated Volterra kernel parameters can be obtained after the object function converged. Based on the above results, the geometric assignment of kernel parameter vector corresponding to particular fault or normal operation, which is lies in a fixed and fault-specified direction in the parameter space, was used to fault diagnosis and Fault Isolation.

第四章针对起动发电机系统在起动过程具有较强的非线性特性，利用非线性volterra建模后获取的核参数向量来表征起动发电机的正常工作及各种故障模型，而核参数求值过程中快速收敛，有利于实现故障的快速、准确诊断与故障类型分离。

The essence of the fault diagnosis technology is to know the state of the equipment in the process of running, to forecast its reliability, to determine its normality or exceptionality, to discovery fault earlier and estimate and identify its reason, position and criticality. It is also to predict the development trend of fault and make decision through its concrete status.

设备故障诊断技术，其实质是了解和掌握设备在运行过程中的状态；预测设备的可靠性；确定其整体或局部是正常或异常；早期发现故障，并对其原因、部位、危险程度等进行识别和评价；预报故障的发展趋势，并针对具体情况做出实施维护决策的技术。

The model of circuit fault propagation based on CA has been applied into grid circuit, in which CA fault model has been studied, and the process of fault propagation has been illustrated according to the evolving rules, the effectiveness of this model has been validated by simulating results as well.

将基于元胞自动机的电路故障传播模型应用到网格电路中，研究该电路故障的元胞自动机模型，及其按照规则演化的故障传播过程，通过仿真，验证了模型的有效性。

Host system failures are many reasons, such as the motherboard's own fault or I / O bus failures of various cards can cause abnormal operation of the system.

主机系统产生故障的原因很多，例如主板自身故障或I/O总线上的各种插卡的故障均可能导致系统的运行不正常。

Take the new-type of tyre-bulldozer GJT112 as example,analyzed the content of this machine fluid-system leakiness forms.

以GJT112新型轮胎式推土机为例，分析了液压系统泄漏形式，产生的主要部位及原因，内泄漏的故障机理和泄漏故障的诊断方法，最后重点论述了液压系统泄漏故障预防与控制的方法和对策。

Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

ABSTRACT :Based on the analysis of characteristics of two classes of technical process fault and defects of two familiar fault detection and diagnosis methods , this paper introduced an early fault detection and diagnosis method for technical process.

在分析了生产过程两类故障的特点和常规故障诊断方法的缺陷的基础上，提出了生产过程早期故障检测与诊断方法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。