With respect to spacecraft engineering, 'Damping Design' is not be understood as the dissipation of vibrational energy only, but in a more general sense as the 'Design for Reduced Response', thus extending the effort to mainly five subjects: the reduction of responses in the primary structure; the protection of sensitive equipment from launch loads; the provision of microgravity environment; the reduction and control of displacements and deformations of large flexible structures; the motion control in mechanisms. Therefore, the different design-for-damping approaches are categorized and demonstrated on representative spacecraft designs, applying a damping design strategy, which results in the identification of type and location of damping measures which also include isolators and absorbers. A trade-off between different approaches (e.g. passive damping vs. active control) is made to meet often conflicting requirements such as a high damping performance while fulfilling tight adjustment and positioning accuracies. As examples for European damping research activities, significant results from recent hardware projects and studies are presented, which were funded or supported mainly by the European Space Agency (ESA) and carried out by Dornier System. While they are primarily concerned with the application of damping after the final assembly of a spacecraft structure, studies under way and future projects outlined here investigate the implementation of damping measures already in an initial stage of the design process.
Damping in spacecraft structures - A review of research and hardware development in European space programs
Daempfung in Raumfahrzeugstrukturen - Ein Ueberblick ueber Forschung und Hardwareentwicklung in europaeischen Raumflugprogrammen
1987
13 Seiten, 25 Bilder, 8 Quellen
Conference paper
English
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