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Modified Dynamics Modelling for Maneuvering Flexible Space Manipulators

机译:机动柔性空间机械臂的改进动力学建模

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The paper considers the dynamics of flexible space manipulators carrying outrelatively fast maneuvers. In the past, computer simulations of the dynamics of flexible space manipulators executing large movements sometimes lacked in accuracy, especially during fast maneuvers. The deficiency can be attributed to the neglect of second-order terms in the deformation field of the flexible links in the manipulator multi-body system. Several modeling techniques can be used to improve flexible space manipulators dynamics algorithms. Theseare: nonlinear deformation field modeling, perturbed dynamics modeling, fictitious joints modeling and bracket joints modeling. These four modeling techniques will be explained in an application to a single link manipulator, thereby facilitating understanding. Analytical and numerical results are presented, and an assessment of each of the four modeling techniques is given.

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