Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Input shaping"”.
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Using input shaping to minimize residual vibration in flexible space structures
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Combined Mechanical and Command Design for Micro-Milling Machines
… of the vibration suppression scheme of input shaping. By thoughtfully altering the commands sent to flexible systems, their vibration can be significantly reduced. Input shaping was effectively applied to an existing micro-mill, which improved part tolerances and increased operational …
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Commande de satellites flexibles actionnés par des propulseurs tout-ou-rien
… une mise en forme des signaux de consigne, ou input shaping , afin d'éviter d'exciter les modes flexibles et une technique de découplage de la dynamique rigide qui permet d'atténuer simultanément l'excitation des modes flexibles. Chacune des contributions est présentée séparément et appliquée à …
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Adaptation of Nontraditional Control Techniques to Nonlinear Micro and Macro Mechanical Systems
… this rapid growth, we develop a novel open-loop input-shaping control technique to mitigate payload oscillations on quay-side container cranes. The proposed approach is suitable for automated crane operations, does not require any alterations to the existing crane structure, uses the maximum …
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Modeling, estimation and control for serial flexible robot arms
… caused by the reference command, an optimized input shaping algorithm for multiple frequency ranges is presented. The results are confirmed with FEA analysis and experiments. The controllability of natural modes is discussed and analyzed. An inversion based closed-loop controller is presented …
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Design, instrumentation, and control of a heliogyro solar sail ground test demonstrator
… show significant nonlinear behavior. Open loop input shaping was chosen as the control method for collective profiles and showed up to 93% residual vibration reduction in pitch maneuvers of up to 45 degrees. A model-referenced feedback approach was chosen for cyclic control and was shown to be …
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Formation control of multiple robots under packet loss
… oscillations in the system. By applying an input-shaping filter, the oscillatory behavior is mitigated, and the stability of the system is restored. The LSTM-based linear control strategy exhibits performance that is competitive with nonlinear controllers, showcasing its effectiveness as a …
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Dynamics and Control of Smart Structures for Space Applications
… that can change their properties based on an input, typically a voltage or current. When these materials are incorporated into structures, they create smart structures. This work is concerned with the dynamics and control of three smart structures: a membrane structure with shape memory alloys …
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A system dynamics approach to user independence in high speed atomic force microscopy
… traditional robust feedforward controllers and input shaping have proven effective at minimizing the influence of scanner distortions, the lack of direct measurement and use of model-based controllers has required disassembling the microscope to access lateral motion with external sensors in …