But in wavelet parameters optimization problem, wavelet analysis in the application of the theory to the actual fault diagnosis system, has a large number of practical work to do.
但在小波参数的最优化问题上,在将小波分析的理论应用到实际的故障诊断系统中,还有大量的实际工作要做。
Thirdly, with theory of fault tree analysis, faults of marine refrigerated container are studied, and methods of finding out faults' reasons are supplied.
第三,利用故障树分析理论对船舶冷藏集装箱故障进行分析研究,提供查找故障原因的方法。
This dissertation adopts the combined method including theory analysis and experiment validation to study the fault detection of chilly water set of single screw.
本论文采用理论分析与实验验证相结合的方法对单螺杆冷水机组的故障诊断技术进行了研究。
Four-phase transmission system fault analysis is one of the important studies on four-phase transmission system theory.
四相输电系统的故障分析,是研究四相输电理论的一项重要内容。
The paper discuss the singularity detection theory of wavelet transform, this theory is applied to analysis of fault characteristics of the transient traveling waves.
本文讨论了小波变换及小波变换的奇异性检测理论,并将其应用于暂态行波故障特征的分析。
Results of theory analysis and experiments demonstrate the effectiveness of all the methods is proposed in fault diagnosis of cage motor.
通过理论分析和试验结果表明,以上方法对鼠笼电动机的故障诊断是有效的,并验证了其可行性和优越性。
The coiled tubing fault tree is constructed based on field investigation and relevant literature by use of the fault tree analysis theory.
结合现场调研和有关文献资料,根据故障树分析理论,用演绎法建立了连续油管的故障树。
The fault diagnosis based on nonlinear spectral analysis is a new fault diagnosis theory.
基于非线性谱分析的故障诊断是一种新的故障诊断理论。
With the analysis of the hydraulic system common fault features by fuzzy logical fault diagnosis theory, the parameter of the system has been determined, and the practical method has been provided.
结合模糊故障诊断理论对铣刨机液压系统常见故障特征进行了分析,确定了系统监测参数和诊断参数,给出了故障的诊断方法。
For the deficiency of fault diagnosis of power transformer, fuzzy set analysis theory and method are described and applied to the diagnosis of power transformer.
针对变压器故障诊断中的不足,介绍了模糊聚类分析的理论、方法及聚类效果的判别原则。
The basic trait and step of the FTA and the fuzzy fault tree analysis are introduced, especially the basic theory of the qualitative analysis and the quantitative analysis.
介绍了故障树分析法和模糊故障树分析法的基本特点和步骤,重点介绍了故障树的定性分析和定量分析的基本原理。
The theory can be used to study the distributed strain, strain rate, porosity and plastic shear displacement in fault band, which presents a new method for quantitative analysis of ductile shear zone.
梯度塑性理论可用于研究韧性断层带内部应变、应变率分布规律、断层带错动位移及带内孔隙度分布规律,为韧性断层带定量分析提供了新的手段。
Theory analysis and simulation results show that the new phase selector can determine fault types properly and be used in transmission line protective relay.
理论分析和仿真计算表明,使用电压量的选相元件能够正确地判别各种故障类型,满足高压线路保护的需要。
Baste on the analysis of study contents and methods of coal faults, mechanic characteristics of rock mass in coal stratum and the theory of cause of fault formation were put forward.
本文在全面分析煤层断层研究内容、研究方法的基础上,提出加强煤系地层岩体力学性质研究、不断完善断层成因理论是煤层小断层成因预测的基础。
For the sake of better carrying on fault detection and diagnosis, introduced the theory of principal component analysis (PCA) and the mechanism and strategy based on PCA for the fault of process.
为了更好的进行故障检测与诊断,介绍了主元分析(PCA)理论,给出了基于主元分析的过程故障辨识机理及策略。
Conclusion By the analysis of theory and application, the fault diagnosis algorithm has the characteristic of universality, completeness and high efficiency in the fault diagnosis field.
结论理论分析及应用表明,该算法在故障诊断领域具有通用性和高效性。
This paper introduces "the fault analysis and determination method for new weaponry", and develops the theory to analyze the possible causes of faults with logic analysis method.
介绍了“新装备故障分析与判定方法”,提出了用逻辑分析的方法分析产生故障的可能原因。
Therefore, these obligations are positive act duty. The basic source of law is the theory of controlled danger and economic analysis of fault.
因此,学校的安全保障义务主要是一种积极的作为义务,其法理依据是危险控制理论和过错的经济分析理论。
Faults are analyzed by means of an improved fault tree analysis, and several fault trees are built for every kind of faults, then make down-way quantity analysis with the minimal cut set theory.
采用一种改进的故障树分析方法对所得到的故障进行分析,根据每类故障分别建造了多棵故障树,并以最小割集理论按下行法对各树进行了定量分析。
The extraction theory and method of fault signal jump omen based on multi-resolution analysis are introduced, and a simulation example is presented.
介绍了针对幅值突变信号及一阶微分有突变的信号利用多分辨分析进行突变征兆提取的理论及方法,并给出了仿真实例。
The theory of fuzzy set is applied to discuss the fuzzy fault tree analysis and its application based on triangular fuzzy number arithmetic operations.
应用模糊集合理论,讨论了基于三角模糊数算术运算的事故树分析方法。
This paper adopts the combined method including theory analysis and experiment validation to study the fault detection of chilly water set of single screw.
本论文采用理论分析与实验验证相结合的方法对单螺杆冷水机组的故障诊断技术进行了研究。
Weibull distribution fitting model of FMS fault interval was set up, and after relevant analysis, the theory and methods of establishing predicted maintenance scheme for the system were proposed.
建立了CH-85FMS故障间隔时间的威布尔分布模型,通过对分布模型的分析,提出了基于可靠性制定预维修计划的理论与方法。
The relationship matrix between fault reasons and malfunction symptoms can be obtained by failure analysis and historical fault data and can be reduced by the application of rough set theory.
通过故障分析和历史故障数据得到故障原因-征兆相互关系矩阵,应用粗糙集理论约简关系矩阵。
Furthermore, fault events are modeled and made into analysis based on the risk analysis theory of fault tree. After that equipment failure characters are confirmed and key factors are exacted.
随后以故障树风险分析理论为基础,对故障事件进行建模和定性定量分析,确定表征设备故障特征的信息,提取关键因素。
The analysis of related theory proved that the fault vibration signal of rotating machinery is a complex signal which has some components with single frequency.
通过对相关理论的分析证实了旋转机械的故障振动信号基本上是一个复合信号。
By the analysis of theory and application, the fault diagnosis algorithm has the characteristics of universality, completion and high-efficiency in the fault diagnosis field.
理论分析及应用表明:该算法在故障诊断领域具有通用性和高效性特点。
The theory of coherence function and spectrum of vibration and noise signals is applied in gearbox noise analysis in the paper. The basis of fault diagnosis of gearbox is theoretically introduced.
应用振动、噪声信号频谱分析和相干函数分析技术,从理论上说明变速箱故障诊断的依据。
The theory of coherence function and spectrum of vibration and noise signals is applied in gearbox noise analysis in the paper. The basis of fault diagnosis of gearbox is theoretically introduced.
应用振动、噪声信号频谱分析和相干函数分析技术,从理论上说明变速箱故障诊断的依据。
应用推荐