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Dynamic analysis of laminated rotors using a layerwise theory

机译：基于分层理论的叠片转子动力学分析

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This paper deals with the dynamic analysis of rotating laminated shafts. A new multi-layer finite element for rotating laminated shaft based on layerwise and shaft theories is formulated and implemented to dispose of a more realistic description of the displacement field through the laminated shaft thickness. This formulation is developed to take into account the influences of stacking sequence, fiber orientation and shear-normal coupling on rotating composite shafts characteristics: natural frequencies and critical speeds and also to analyse the dynamic behaviour of functionally graded material rotating shafts. Obtained results prove that the developed Layerwise Shaft Theory can be efficiently used for rotating laminated shaft dynamic analysis. Furthermore, Layerwise Shaft Theory results revealed that fiber orientations, stacking sequences and shear-normal coupling have a significant effect on the dynamic behaviour of rotating composite shafts and that constituent material properties and power law index have an important influence on the dynamic behaviour of functionally graded material rotating shafts.
机译：本文涉及旋转叠层轴的动力学分析。基于分层理论和轴理论，提出并实现了一种新型的旋转叠层轴的多层有限元，并通过叠层轴的厚度对位移场进行了更实际的描述。开发该公式时要考虑到堆叠顺序，纤维取向和剪切法向耦合对旋转复合轴特性（固有频率和临界速度）的影响，并分析功能梯度材料旋转轴的动态行为。所得结果证明，所开发的分层轴理论可以有效地用于旋转叠层轴的动力学分析。此外，分层轴理论结果表明，纤维取向，堆积顺序和剪切法向耦合对旋转复合轴的动力学行为有重要影响，并且组成材料的性能和幂律指数对功能梯度材料的动力学行为具有重要影响。物料旋转轴。

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