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1)  cylinder head vibration signal
缸盖振动信号
1.
In order to obtain the feature parameters reflecting engine fault state from cylinder head vibration signal,the lifting wavelet package transformation and the frequency-shift arithmetic are introduced.
为了从发动机缸盖振动信号中快速提取反应故障状态的特征参数,给出了提升小波包变换算法及其移频算法,依据信号时频特性,定义了标准化相对能量,并给出了特征向量提取方案。
2)  Cylinder Head Vibration
缸盖振动
1.
RBF Neural Network Identification for Inner-Rings Gas Pressure Based on Cylinder Head Vibration Signal;
基于缸盖振动信号的活塞环腔压力径向基神经网络识别研究
3)  vibration signal
振动信号
1.
The vibration signal analysis and diagnosis system facing the oilfield water injection devices;
面向油田注水设备的振动信号分析和诊断系统
2.
Application research of generalized morphological filter in vibration signal processing;
广义形态滤波器在振动信号处理中的应用研究
3.
Computed-order tracking analysis of aero engine s vibration signal;
航空发动机振动信号的计算阶比分析
4)  vibration signals
振动信号
1.
Immune mechanism based detection algorithm for abnormal vibration signals;
振动信号异常值的免疫机制检测算法
2.
Applyment of Vibration signals approach on Gearbox Fault Diagnosis;
齿轮箱故障诊断振动信号处理方法的应用
3.
Consulting the anode effect detection method proposed by Xue and Oye, the authors propose a wavelet packet and spectrum estimation method to detect anode effect via vibration signals obtained from anode leaders.
参考Xue和Oye提出阳极效应检测方法,采用小波包与谱估计相结合的方法,对铝电解中阳极效应时阳极导杆振动信号进行小波包多层分解,以提取信号特定频段的频率特征。
5)  vibrating signal
振动信号
1.
In the online detection and fault diagnosis for mechanical equipment, vibrating signal analysis is an important means.
在机械设备的在线检测和故障诊断中,振动信号分析是十分重要的手段。
2.
The eigenvector of the vibrating signal is rebuild by technology of wavelet package,It is valuable and effective to detect the ride quality of locomotive bogie.
通常从机车上采集的振动信号混有大量的噪声,现利用小波变换进行降噪,仿真结果表明小波变换能够有效地去除信号中的噪声,特别适应于信号中混有白噪声。
3.
Based on site-collected results of diesel engine vibrating signal,the paper analyzes the time-region division of vibrating signal and the selection principle of its parameters.
根据对柴油机振动信号的现场采集结果,分析了振动信号的时域划分、信号采集基本参数的选择原则,并对频谱分析中存在问题及解决方法进行了初步的探讨。
6)  vibration signal method
振动信号法
补充资料:点振子振动和点电极振子振动
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性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。

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