| Customer: ESA/ESTEC (2001 – 2002) | |
 | A vibration Control of long booms can be achieved by the implementation of piezo-ceramic actuators and sensors. This study concerned the verification of the feasibility. |
This study was about the theoretical and experimental analysis on adaptive vibration control of an ultralightweight telescope arm. Such kind of structures are typical components in so-called Gossamer Space Structures, which are characterized by its extremely low eigenfrequencies leading to significant problems for the structure in case of dynamic excitations. The introduction of adaptive control strategies can lead to significant load decrease in terms of structural damping increase. To find the optimum control algorithm several control strategies (passive and active) and control parameters are assessed by numerical analysis in the first part. The second part was about experiments with a representative breadboard verifying the theoretical predictions by realizing a significant structural damping using piezoceramic patches as collocated sensor/actuator and a PPF control algorithm with optimum control parameters.
Main subcontractors have been Kayser-Threde, Munich and DLR, Braunschweig.
Publications:
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Statement of Work:
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