碰磨信号和突加不平衡信号均具有较强的非平稳性。
Both the friction signal and sudden unbalance signal features nonstationarity.
利用同步电动机的状态方程,研究了同步电动机在突加负载时的动态过程。
The dynamic performance of synchronous motor under abrupt change of load is investigated using the state equation.
汽车发动机经常在非稳态的过渡工况下工作,即启动、暖机、突加和突减工况。
The automobile engine is usually worked under non steady state of transient operating conditions, i. e. starting, warming, suddenly loading and unloading.
并以受突加均匀外压的浅球盖壳为例进行了分析,其结果与文献中的解相当吻合。
Results for a shallow spherical cap subjected to a sudden uniform external pressure are presented and found to be in good agreement with those of previous investigations.
利用拉普拉斯变换及逆变换,求得了均布突加荷载作用下壳体振动响应完全解析解。
The analytical solution for dynamic response of the lining subjected to sudden internal uniform loading is derived using the Laplace transforms and inverse transforms.
结果表明:小波分析降噪方法能够有效抑制碰磨和突加不平衡信号中的噪声并保留故障特征信息。
The results show that the wavelet denoising method can effectively restrain the noise in friction and sudden unbalance signal, and reserve the fault character information in the signals.
无论是在突加电流还是在去掉电流的过程中,都存在着一个由磁化或去磁过程引起的初始滞后时间。
There was an initial delay time at either switching the step current on or off, which was caused by the magnetizing or de-magnetizing process.
该文研究了由两个不可压热超弹性球体组合而成的物体在突加表面均布拉伸载荷作用下空穴的动态生成问题。
Dynamical cavitation in a spheroid composed of two incompressible thermal-hyperelastic Gent-Thomas materials under boundary dead-loading is examined.
在此基础上,分析了均布突加荷载作用下土体泊松比、剪切模量及衬砌剪切模量、衬砌厚度对衬砌动力响应的影响。
On this basis, the influences of the Poisson's ratio of soil, shear modulus of soil, shear modulus of lining and thickness of lining on dynamic response of the lining are analyzed.
本文对车用风冷发动机汽缸盖的非稳态温度进行了实测,分析了启动、突加和突减三种过渡工况下汽缸盖温度的变化规律。
This paper measured the non steady state temperature field of cylinder head in an air cooled engine. It analysed the temperature variation under transient operating conditions of engine.
仿真实验表明,采用GPC算法能使挤压速度精确跟踪设定曲线,并能有效抑制对象参数时变、突加恒值干扰及随机干扰的影响。
Simulation results showed that the GPC algorithm enabled extrusion speed to follow the given tracks accurately, and could effectively restrain the influence of variety of plant parameters.
目的探讨腰椎后路棘突椎板作为骨源椎间植入加椎弓根钉系统固定在下腰椎椎间融合中的可行性和临床效果。
Objective To explore the feasibility and clinical effects of spinal processes and laminae as materials for interbody fusion and pedicle screw fixation in the lower lumbar spine.
目的探讨腰椎后路棘突椎板作为骨源椎间植入加椎弓根钉系统固定在下腰椎椎间融合中的可行性和临床效果。
Objective To explore the feasibility and clinical effects of spinal processes and laminae as materials for interbody fusion and pedicle screw fixation in the lower lumbar spine.
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