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首页> 外文会议>International Conference on Mechanical Engineering and Mechanics vol.1; 20051026-28; Nanjing(CN) >Modeling of System Dynamics of a Slewing Flexible Beam with Moving Payload Pendulum
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Modeling of System Dynamics of a Slewing Flexible Beam with Moving Payload Pendulum

机译：具有有效载荷摆的回转柔性梁系统动力学建模

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摘要

When a tower crane is handling payload via rotation and moving the carriage simultaneously the jib structure and the payload can be modeled as a system consisting of a slewing flexible clamed-free beam with the spherical payload pendulum that moves along the beam. The present work completes the dynamic modeling of the system mentioned above. The clamed-free beam attached to a rotating hub is modeled by Euler-Bernoulli beam theory of ignoring the rotary inertial and shear deformation effects. The payload is modeled as a sphere pendulum of point mass attached to via massless inextensible cable the carriage moving on the rotating beam. Non-linear coupled equations of motion of the in- and out-of-plane of the beam and the payload pendulum are derived by means of the Hamilton principle. Some remarks are made on the equations of motion.
机译：当塔式起重机通过旋转并同时移动托架来处理有效载荷时，可以将悬臂结构和有效载荷建模为一个系统，该系统包括回转的柔性无包层梁以及沿梁移动的球形有效载荷摆。本工作完成了上述系统的动态建模。附着在旋转轮毂上的无包层梁是通过Euler-Bernoulli梁理论建模的，它忽略了旋转惯性和剪切变形的影响。有效负载被建模为点质量的球摆，该点质量通过无质量的不可延伸电缆连接到在旋转梁上移动的滑架。梁的平面内和平面外运动以及有效载荷摆的非线性耦合方程是利用汉密尔顿原理导出的。关于运动方程式有一些评论。

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