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On consistent Reissner beam formulation using quaternion algebra

机译:关于使用四元数代数的一致Reissner梁公式

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In the paper we present the Reissner beam theory in which the rotations are parametrized by the quaternions. From the generalized virtual work principle, where the unity constraint of the rotational quaternion is properly considered, and the consistent energy complements of the rotational quaternions are employed we derive the weak kinematic equations in the quaternion-based description. These equations are then employed in the same extended virtual work principle to obtaine the consistent and exact governing equations of the three-dimensional beam in terms of the quaternion algebra. The quaternion moment equilibrium equation is analysed, discussed and interpreted.
机译:在本文中,我们介绍了Reissner梁理论,其中旋转是由四元数参数化的。从广义虚拟工作原理出发,适当考虑旋转四元数的单位约束,并采用旋转四元数的一致能量补,我们在基于四元数的描述中得出了弱运动学方程。然后将这些方程式用于相同的扩展虚拟功原理,从而根据四元数代数获得三维束的一致且精确的控制方程式。对四元数矩平衡方程进行了分析,讨论和解释。

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