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首页> 外文会议>International Congress on Sound and Vibration >Influence of Two Moving Masses on Dynamic Behavior of a Simply Supported Pipe Conveying Fluid Flow
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Influence of Two Moving Masses on Dynamic Behavior of a Simply Supported Pipe Conveying Fluid Flow

机译：两种移动质量对简单支撑管输送流体流动动态行为的影响

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A simply supported pipe conveying fluid and two moving masses upon it constitute this vibration system. The equation of motion is derived by using Lagrange's equation. The influence of the velocities of two moving masses, the distance between two moving masses, and the velocities of fluid flow in the pipe have been studied on the dynamic behavior of a simply supported pipe by numerical method. The velocities of fluid flow are considered within its critical values of a simply supported pipe without moving masses upon it. Their coupling effects on the transverse vibration of a simply supported pipe are inspected too. As the velocity of two moving masses increases, the deflection of a simply supported pipe is increased and the frequency of transverse vibration of a simply supported pipe is not varied. In case of small distance between two masses, the maximum deflection of the pipe occur when the front mass arrive at midspan. Otherwise as the distance get larger, the position of the front masses where midspan deflection is maximum moves beyond the midpoint of a simply supported pipe. The deflection of a simply supported pipe is increased by coupling of the velocities of moving masses and fluid flow.
机译：在其构成该振动系统时，简单地支撑的管道输送流体和两个移动质量。通过使用拉格朗日的等式来导出运动方程。通过数值方法研究了两个移动质量的速度，两个移动质量的距离和管中的流体流动速度的速度。流体流的速度被认为是在其临界管的临界值内而不在其上移动质量。它们的耦合效应也考虑了简单支撑管的横向振动。随着两个移动质量的速度增加，简单地支撑的管道的偏转增加，并且简单地支撑管的横向振动的频率不变。在两个肿块之间距离小的情况下，当前质量到达中间座时，管道的最大偏转。否则，随着距离变大，前块的位置是中间偏转的最大移动超出了简单地支撑管的中点。通过耦合移动质量和流体流动的耦合来增加简单的支撑管的偏转。

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