rotation of beam

Secondly, the principle of optical rotation due to the transfer of spin angular momentum and orbital angular momentum from light to birefringent particles is discussed by analyzing the interaction between the beam of light and birefringent crystal particles.

其次，从理论上分析了偏振光束与双折射晶体粒子的相互作用机制，并分别讨论了由于光束自旋角动量和轨道角动量向双折射晶体粒子的传递所导致的光致旋转效应的原理。

The general equations of rotation angle and flexibility deformation at arbitrary section of beam were derived by means of the integral to bending moment equations and the iteration of the equations after integration. And the living computational example of engineering was given.

通过对弯矩方程的积分和积分后方程的递推，推导出梁任意截面的转角和挠度变形的一般方程，并给出工程计算实例。

By integrating the function, the shear force, bending moment and the angle of rotation of the whole beam are expressed by one equation respectively.

通过积分，全梁的剪力、弯矩、转角和挠度可分别用一个方程表示。

Design suggestions based on test results are presented: a weaker beam splice will improve rotation capacity of beam to column connection, reduce the transfer of seismic energy to weld joint and delay its brittle fracture.

根据试验结果提出了设计建议：尽量将拼接设计得弱些，可以提高梁柱连接的转动能力，减少地震作用向梁柱连接焊缝的输入，延缓焊缝的脆性破坏。

In this paper, the elemental stiffness matrix of a rotating twisted and tapered beam, due to deformation of axial direc-tion, bending and shearing including shearing deflection and rotation effects, is studied.

本文研究了在剪切变形和转动的影响下，在轴向变形、弯曲变形和剪切变形的作用下的旋转变截面扭梁的单元刚度矩阵。

In order to investigate the dynamic characteristics of blade impact to droop stop, a moderate deflection beam model is adopted to deal with the elastic deformations, and the finite rotation is introduced to take account of the rigid motions around hinges.

针对铰接式旋翼桨叶扬起下坠碰撞问题，采用中等变形梁模型，同时引入有限转角模拟桨叶绕铰的刚性运动。

Considering beam sagging moment capacity, joint moment capacity, joint rotation capacity and required rotation capacity, the plastic analysis method is suitable for the design of beams for semi-rigid composite frames under vertical loads at ultimate limit state.

塑性分析方法考虑了组合梁的跨中弯矩承载力、节点弯矩承载力、节点转动能力和设计需要的节点转动能力，适用于竖向荷载下半刚性连接组合框架梁的承载能力极限状态设计。