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首页> 外文期刊>International journal of structural stability and dynamics >Vibration and Stability Analysis of Axially Moving Beams with Variable Speed and Axial Force
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Vibration and Stability Analysis of Axially Moving Beams with Variable Speed and Axial Force

机译:变速轴力轴向运动梁的振动与稳定性分析。

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摘要

The well-known vibration model of axially moving beam is considered. Both axial moving speed and axial force are assumed to vary harmonically. The Method of Multiple Time Scales (a perturbation method) is used. The natural vibrations of beam are considered for different values of beam parameters. Resonances are obtained for seven different conditions. Solvability conditions for each resonance case are found analytically. Effects of transport velocity, axial force, rigidity and damping are discussed. Stability analysis are obtained for principal parametric resonances. Stable and unstable regions are obtained regarding velocity and force effects separately and together.
机译:考虑了众所周知的轴向运动梁的振动模型。假定轴向移动速度和轴向力均发生谐波变化。使用了多个时间标度的方法(摄动方法)。对于梁参数的不同值,应考虑梁的固有振动。在七个不同条件下获得共振。通过分析找到每种共振情况的可解性条件。讨论了运输速度,轴向力,刚度和阻尼的影响。获得了主要参数共振的稳定性分析。分别和一起获得关于速度和力作用的稳定和不稳定区域。

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