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1·The expression format and application method of longitudinal vibration road spectrum were described.

建立了纵振动力学模型，阐述了纵振路面谱的表达形式及应用方法。

2·In this paper, the regularity of longitudinal vibration was analyzed by using finite element method.

本文利用有限元方法分析了钻柱轴向振动规律。

3·The amplitude of longitudinal vibration is decreased when the number of intermediate supports is increased.

增加中间支点的数量，纵向振动的振幅减小。

4·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。

5·The mathematical model of longitudinal vibration bars is directly used for the dynamic analysis of helical springs.

直接把均匀杆纵向振动的数学模型用于弹簧的动力分析。

6·The longitudinal vibration equation of elastic straight bar with nonlinear material under the action of axial force is set up.

建立了非线性材料弹性直杆在轴向扰力作用下的纵振方程。

7·Furthermore the vibration and noise mainly comes from the polygonal action which generates the longitudinal vibration of chains.

而在自动人行道的链传动系统中多边形效应引起的纵向振动是振动和噪声的主要来源。

8·The method of interpretation for fringes is obtained when the flexual vibration and longitudinal vibration appear simultaneously.

提出了两种类型振动并存时的条纹解释方法和两类振动振幅的分离方法。

9·Transverse excursion process of micro drill in ultrasonic longitudinal vibration drilling is analyzed by using finite element method.

利用有限元技术对微细钻头超声轴向振动钻入横向偏移过程进行深入分析。

10·This paper studies the affection that the flowing force of fluid inside coiled tubing is correlated to longitudinal vibration of coiled tubing.

研究了连续油管柱内流体的液动压力对连续油管柱纵向振动的影响问题。