Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.11889/4124
Title: | Six-degree-of-freedom hexapods for active damping and active isolation of vibrations | Authors: | Abu Hanieh, Ahmed Horodinca, Mihaita Preumont, Andre |
Keywords: | Vibration - Measurement - Instruments;Damping (Mechanics);Structural dynamics | Issue Date: | 2002 | Abstract: | As future astronomic missions will require more and more stringent resolution requirements, the high demand for an environment clean of vibrations and disturbance appears. This also leads to the need for high precision steering devices for fine pointing of sensitive optics with the highest possible accuracy. Several methods exist to reduce vibration levels: the first consists in isolating the sensitive system from the perturbation and the second in damping the structure vibration modes. Therefore, two Stewart platforms have been designed, manufactured and tested. The first is a soft hexapod that provides 6 degree-of-freedom (DOF) active isolation and the second is a stiff hexapod that provides active damping to whatever flexible payload attached/mounted to it. In addition, both hexapods have steering capabilitie | URI: | http://hdl.handle.net/20.500.11889/4124 |
Appears in Collections: | Fulltext Publications |
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File | Description | Size | Format | |
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(4-2)_Journal de PHYSIQUE_2002.PDF | 1.44 MB | Adobe PDF | View/Open |
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