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- The results show that longitudinal vibration of drill string is relative to rotary speed and weight on bit(WOB). 实验结果表明,钻柱的纵向振动主要与转速和钻压有关。
- The vibration and radiation induced by longitudinal vibration of shafting of underwater double cylindrical shell are calculated by FEM/BEM. 采用有限元/边界元方法(FEM/BEM)对推进轴系纵振引起的双层圆柱壳水下辐射噪声特性进行研究。
- The longitudinal vibration of shaft-line is very important in research of the sound radiated from the hull induced by propeller and shaft-line. 轴系的纵向振动在螺旋桨轴系激励艇体纵向振动声辐射问题分析中具有重要地位。
- Longitudinal vibration model of the lifting container are built based on the viscoelastic model of lifting wirerope and solved with MATLAB6.5. 从建立钢丝绳的粘弹性振动模型出发,推导出了提升容器纵向振动模型。
- At the same time,the wheel set longitudinal vibration is found to be an impersonality exit phenomena,no matter it whether be developed with resonance. 同时发现轮对的纵向振动现象是一种客观存在的现象,不管它有没有发展成共振。
- Further research indicates that the wheelset longitudinal vibration has more relation with the track lateral and high/low irregular. 在光滑的轨道上不会发生纵向共振。
- Longitudinal vibration model of the lifting container are built based on the viscoelastic model of lifting wirerope and solved with MATLAB6. 从建立钢丝绳的粘弹性振动模型出发,推导出了提升容器纵向振动模型。
- The first records the arrival of longitudinal vibrations. 首先记录到的是纵向振动。
- Moreover, regarding to reducing the longitudinal vibration of bottom string in straight hole, there is the problem of optimization grouping between WOB and rotary speed. 另外，在减小直井底部钻柱纵向振动的问题上存在钻压与转速的优化组合。
- LSFRV is a stochastic process obeying Gaussian distribution whose standard deviation can be gotten by the longitudinal vibration pavement spectral density of running vehicles and the longitudinal vibration model of running vehicles. 行车纵剪力是服从正态分布的随机过程,标准方差可以通过行车纵振路面谱和车辆纵振模型得到;
- With Laplace transformation,the solution for longitudinal vibration of a pile with variable cross-section is derived when surrounding soil is simulated respectively with normal Voigt model and normal Maxwell model. 采用拉氏变换法分别得到了标准Voigt模型和标准Maxwell模型条件下成层土中任意段变截面桩纵向振动解。
- This paper establishes dynamic model of the longitudinal vibration of the overall belt conveyor system with finite elemental method and simulation module of driving system in neural networks. 通过有限单元法建立了整个输送机系统纵向振动的动力学模型,用仿真软件的神经网络工具箱编程建立了驱动系统仿真模块。
- According to the experimental device designed on the basis of the principle of similitude, the longitudinal vibration characteristics of bottom string in straight hole were investigated. 摘要为了了解直井眼中底部钻柱的纵向振动特性，利用根据相似理论设计出的钻柱动力学模拟试验装置，对不同参数组合下的钟摆钻具组合纵向振动特性进行了模拟实验研究。
- The compoundtransducer is composed of the sandwich vibrator in longitudinal vibration and the circular thin plate in flexural vibration. 该复合换能器由夹心式纵向振动半波长换能器及弯曲振动的薄圆盘组成。
- An analysis of the vibration characteristics of a composite electroacoustic transducer, which is essentially a longitudinal vibrator with attached masses, is presented. 摘要本文主要是分析组合式电声换能器的一些振动特性。
- longitudinal vibration characteristic 纵向振动特性
- longitudinal vibration characteristics 纵向振动特性
- the longitudinal vibration of shafting 轴系纵振
- one dimension longitudinal vibration 一维纵向振动
- A longitudinal cut from the trunk of a tree. 料板，板皮从树干上纵切下的一块木材
