冲击引起的振动与波是舰船破坏的主要原因之一。
One of the main reasons for destroy of marine equipment is the vibration and wave caused by shock .
针对电机振动信号的频谱特点，提出基于小波神经网络技术的电机故障模式识别与诊断的新方法。
A novel method of pattern recognition and fault diagnosis in electrical machine based on the wavelet-neural network is proposed according to the frequency spectrum characteristics of vibration signal.
提出基于小波尺度图重分配的信号瞬态特征检测方法和瞬时能量估计方法，并应用于轴承在多种轻微故障状况下的振动非平稳特征的检测与表示。
The singal transient feature detection represent method, and a transient energy evaluation method are used based on the reassigned scalogram for the vibration non-stationary feature representation.
基于弹性波传递矩阵方法，研究了失谐周期结构中弹性波与振动的局部化问题。
Based on the method of wave transfer matrix, the elastic wave and vibration localization in disordered periodic structures is studied.
通过与杆的纵振动波动方程与弦振动的一维波动方程中各个量的物理意义进行比较分析，得出扭转波是纵波的结论。
The result demonstrates that the twisting wave is longitudinal wave by anglicizing physical meaning of the longitudinal wave equation, transverse wave equation, and twisting wave equation.
因为晶格振动的波在达到界面时会被反射，所以镜面反射边界条件与循环边界条件相比更符合晶格振动的特点。
Lattice wave will be reflected when it reaches the boundary so that the reflecting boundary condition is more reasonable than cyclic boundary.
建议了一种基于复解析小波变换的瞬时频率分析齿轮故障振动信号的方法。 该方法将希尔伯特变换与小波变换相结合，具有自适应分析能力。
A method using transient frequency based on complex-analytical- wavelet-transform, which combines Hilbert transform with wavelet transform and possesses adaptive analytical ability, is proposed.
该调幅振动的载波为滚动轴承的某一高频固有振动，而调制波为与缺陷或损伤有关的通过振动。
Its carrier wave is a kind of the bearing's inherent vibration with high frequency, and its modulating wave is a pass vibration corresponding to the local defect.
研究了梁在集中载荷作用下的弯曲波运动以及振动功率流的输入和传播 ，分析了振动功率流与破损位置及其特征尺寸的关系。
The stiffness of the local spring is deduced by fracture mechanics, then the relations between the vibrational power flow and the position and the characteristic size of the damage are obtained…
研究了梁在集中载荷作用下的弯曲波运动以及振动功率流的输入和传播 ，分析了振动功率流与破损位置及其特征尺寸的关系。
The stiffness of the local spring is deduced by fracture mechanics, then the relations between the vibrational power flow and the position and the characteristic size of the damage are obtained…
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