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機床傳動絲杠的動力分析
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of the Machine Drive Screw
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    摘要:

    把機床傳動絲杠簡化為承受預(yù)拉伸力和移動力作用的旋轉(zhuǎn)Timoshenko梁,，綜合考慮了陀螺效應(yīng),、預(yù)拉伸力和移動力對絲杠振動的影響，以及絲杠兩端軸承的支承作用,，建立了彈性支承條件下絲杠的頻率方程,，利用拉格朗日方程建立了絲杠的動力學模型,，利用振型疊加原理和隆格-庫塔法求解，分析了系統(tǒng)參數(shù)對絲杠渦動轉(zhuǎn)速和橫向振動的影響,。

    Abstract:

    The drive screw was simplified as a rotating Timoshenko beam bearing the pre-tension force and moving forces, and the frequency equation of the screw with the elastic end supports was derived under considering the effect of gyroscope, the pre-tension force,，the moving forces on the screw vibration, and the bearing stiffness. The dynamic model of the drive screw was established using Lagrange equation, and was analyzed adopting the mode superposition and Runge-Kutta method to calculate the transient response. Eventually, the effect of the system parameters on the whirl speed and lateral vibration was studied to supply a base for designing the drive system.

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張會端,譚慶昌,李慶華.機床傳動絲杠的動力分析[J].農(nóng)業(yè)機械學報,2009,40(9):220-226. of the Machine Drive Screw[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(9):220-226.

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