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- The main drive source and dissemination way of engine vibration baa been confirmed through analyzing the basic characteristics of engine vibration signal. 摘要通过对发动机振动信号基本特性的分析,确定了发动机振动的主要激励源和传播途径。
- This project is to research the order tracking methods to extract rotation related signal and separate disturbed noise from complicated engine vibration signal. 本课题是研究从复杂的发动机振动信号中提取和转速相关的信号,分离干扰噪声的阶比跟踪方法。
- Tappet Sound Fault Diagnosis by Engine Vibration Signal 利用振动信号诊断气门挺杆响故障
- Engine Vibration Signal Correlation Analysis Based on Lifting Wavelet 基于提升小波的发动机振动信号相关分析
- DIESEL ENGINE VIBRATION SIGNAL PREDICTION BASED ON THE COMBINATION NEURAL NETWORKS 基于组合神经网络的柴油机振动信号预测
- engine vibration signal 发动机振动信号
- Uses the vb programming, realizes controls in Timer to transfer the RDS technology the engine vibration signal data transfer which gathers to the long-distance server database in, Visual Basic 采用vb编程,实现在Timer控件中调用RDS技术把采集到的发动机振动信号数据传送到远程的服务器数据库中
- The denoise of vibration signal in engine rotor system is proposed, which is based on signal blind separation. 本文根据信号分离理论研究了发动机转子系统振动信号的降噪问题。
- The vibration signal from the reciprocating engine is non-stationary,time-variation,so,application of HHT is a good choice. 从往复机械上得到的振动信号往往具有非平稳、非线性特征,因此采用HHT方法分析是一种较佳的选择。
- The catalytic converter can also be destroyed by excessive engine vibration. 发动机的过度震荡也会造成催化裂化炉的毁坏。
- Diesel engine vibration signals 柴油机振动信号
- The deconvolution between cylinder pressure signal and head bolt vibration signal was analyzed. 摘要研究了发动机气缸压力信号与表面振动响应信号之间的反卷积关系;
- Balancing the firstorder reciprocating inertial force through single-axis balance mechanism can evidently reduce the engine vibration. 摘要采用单轴平衡机构完全平衡一阶往复惯性力,可大大减轻发动机振动。
- The piecewise self-affine fractal model was explored for data coding and reconstruction of vibration signal. 提出了用于对振动信号进行编码及重构的分段自仿射模型。
- The lifting wavelet transform is used to construct wavelet to de-noise the vibration signal of turbo generator units. 针对电厂汽轮发电机组振动信号的噪声抑制问题,采用提升小波变换的方法构造小波。
- This model can realize the nonlinear mapping of vibration signal measured under the condition of a reciprocating pump. 使用小波包分析的特征提取功能以及神经网络的非线性映射功能能够较好地完成从振动信号到往复泵故障的分类。
- In order to effectively abate the noise of geared pump vibration signal, matching pursuit is introduced for de-noising. 摘要为了更有效地消除齿轮泵振动信号的噪声,引入匹配追踪消噪方法。
- In order to effectively abate the noise of geared pump vibration signal,matching pursuit is introduced for de-noising. 为了更有效地消除齿轮泵振动信号的噪声,引入匹配追踪消噪方法。
- Third, prove the original advantage of wavelet transform through the signal instance that while dealing with the vibration signal of the gear wheel. 第三,通过信号实例说明小波变换在处理齿轮振动信号时的独到优点。
- As for some of the unsteady vibration signals of diesel engine, false result may be provided by using Fourier analysis, thus error diagnosis would be induced. 传统的振动分析常采用傅立叶分析法,对于柴油发动机某些非平稳振动信号,傅立叶分析可能给出虚假的结果,从而导致错误诊断。