A fault trend prediction problem for a class of exponential fault process is studied.
研究了一类带有指数故障过程的故障趋势预测问题。
The results of experiments proved that it can show the fault trend better than the traditional analysis of vibration amplitude.
实验结果表明,它比传统的振动通频值能更好的反映发电机组的故障发展趋势。
Throught predicting chart of fault trend of fans, the working state of fans can be forecasted accurately at present and in the short run.
通过故障趋势预报图,能够准确地预测出风机当前以及将来一段时间的工作状态。
The first responsibility of the historical evolution from fault with, and locating fault trend to illustrate the theory of objectivity fault increasingly important.
本文首先从过错责任的历史演变入手,探明过错的发展趋势,以说明客观性过错理论的日渐重要。
The theory and algorithm of BP neural network were introduced, and it was used in the fault trend prediction for cutting part transmission system of mining machine.
介绍了BP网络的原理、算法,并用BP网络对采煤机截割部齿轮箱机械传动系统的故障进行了趋势预测。
Case study shows that the proposed method is of high precision, and can be effectively applied to condition forecasting and fault trend forecast analysis of complex systems.
实例研究表明,此方法具有较高的预测精度,可有效地应用于复杂系统的状态预测和故障趋势预测分析。
The paper introduced the theory and algorithm of BP neural network, and it has been used in the fault trend prediction for cutting part transmission system of mining machine.
介绍了BP网络的原理、算法,并用BP网络对采煤机截割部机械传动系统的故障进行了趋势预测。
So, the results of fault trend analysis are easier to be influenced. To avoid this effect, a new synthetic analysis curve to reflect the fault deterioration trend is presented.
为了减少这种影响,提出一种综合分析的反映发电机组故障恶化程度的趋势曲线。
There is much comparability between the tectonic settings and their controlling factors of the Qaidam basin and the Los Angeles basin, especially the Altun Fault and the Santa Monica Fault Trend.
柴达木盆地与洛杉矶盆地在构造特征和演化主控因素等方面具有很大的相似性,其中阿尔金断裂带和圣莫尼卡断裂带构造活动特征非常相似,两者山前地区的构造背景也具有可比性。
It can determine equipment whole or local is in normal or abnormal, found early fault and the reasons, and can forecast fault development trend.
它可以确定设备整体或局部是正常还是异常,能早期发现故障及其原因,并能预报故障发展趋势。
By analyzing features of across fault measurement, the trend components of deformation can reflect the strength of strain energy accumulation in regional area.
通过对跨断层测量特点的分析,提出断层运动中趋势性成分具有反映区域地壳形变及应变能累积程度的意义。
Trend prediction is an important part in condition monitoring and fault diagnosis .
状态趋势预测是状态监测与故障诊断中的一个重要环节。
Fault features based on pattern spectrum were presented for analyzing tiny changes of energy and waveform of generator sets vibration and reflecting the trend of early faults.
为了分析发电机组振动信号在能量和波形方面的细小变化,从而反映发电机组的早期故障趋势,提出了基于数学形态谱的故障特征量。
The trend forecasting of vibration signals is an important content of condition monitoring and fault diagnosis.
振动信号的趋势预测是设备状态监测与故障诊断中的一个重要内容。
It also can process the stored data in time-domain, frequency-domain and amplitude-domain so as to extract signature, analyze trend and locate the fault.
对存储的数据可在时域、频域、幅值域进行特征提取、趋势分析以判定故障的位置与性质。
A perfect fault diagnosis system should be joined with the technology of fault theory, monitoring and trend anticipation and so on.
一个完善的故障诊断系统可以有效的将故障机理、监测分析、趋势预测等理论应用于现场机组的生产之中。
One proposal is put forwards by establishing a condition data center to realize functions of condition assessment and trend analysis and fault diagnosis and maintenance suggestion and so on.
提出建立设备状态数据中心以实现设备状态评判、趋势分析、故障诊断和设备检修建议等功能。
For instance, a strike fault is one which strikes essentially parallel to the trend of adjacent rocks.
例如,走向断层就是指那些断层走向与围岩走向一致的断层;
It can not only acquire signals on different measuring positions in equipment continuously, but also look over current trend, historical trend and make primary fault diagnosis.
对设备上不同测点的信号进行实时连续采集,并能随时查看各时间段的当前趋势、历史趋势,还能进行初步故障诊断。
Finally, the developing trend of neural networks fault diagnostic system is discussed.
最后,探讨了神经网络故障诊断的新近发展趋势。
Therefore, the establishment of Remote Fault Diagnosis Expert System has become a trend.
所以,建立远程故障诊断专家系统已经成为趋势所在。
Nowadays, abolition of nautical fault exemption has become an irreversible international trend.
当今时代,废除航海过失免责已成为不可逆转的国际潮流。
To grasp fault component, mechanism, character and development trend in time and give the decision of maintenance and replacement as fast as possible and decrease the time of stopping machines.
迅速掌握机械设备主要故障的部位、模式、机理、性质及发展趋势,使企业可以尽快做出维修与更新决策,减少停机时间。
With the prevention of insulation aging as the key, service life management for transformers includes transformer fault forecast, on the spot fault diagnosis, trend analysis and state examination.
变压器的预警系统、现场诊断、趋势分析、状态检修是寿命管理的内容,防止变压器绝缘老化是关键。
Instead of traditionally local or small system simulation, the fault is set into the simulation system for the whole power plant in normal operation so as to analyze the trend of relevant parameters.
在故障工况仿真中摒弃了以往只进行模块局部仿真或小系统仿真的作法,将故障置入正常运行的整个电厂仿真系统中,查看并分析相关参数变化趋势及影响。
In the east part of the orefield, the trend of arcual fault is convergent NNW-wards and divergent SE-wards. These arcual faults must be a broomlike structure.
矿区东部断裂呈弧形弯曲,并作NNW向收敛、SE方向撒开趋势,这些弧形断裂应是一帚状构造。
Moreover, the trend of machinery fault prediction is discussed. For precise and reliable machinery fault detection, it is essential to use multivariable forecasting modest...
最后讨论这一领域的发展趋势,指出多参数预测和组合预测在机械故障预报中的重要意义。
Abstract: There is an increasing trend of electrical fire, which because the fault that caused the fire is also a lot of.
摘要:电气火灾目前有上升趋势,其中由于接地故障引起的火灾也不少。
In fact, they form a NNE trend fault zone, broad in scale, characteristic of long-term activity, which is closely related to earthquake.
实际上,它们是一个北北东向的断裂带,具有规模大、长期活动的特点,与地震关系十分密切。
The trend of the high anomaly in south west area of the study region is basically same with the thrust fault, so we infer that the anomaly is caused by it.
研究区内西南部区域高异常在剖面图上其走向与逆冲推覆构造走向基本一致,推测异常是由逆冲构造引起,也可能是盖层中侵入岩引起。
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