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EnglishIn this paper, an extended Craig-Bampton method is proposed. Despite the common procedure widely used in structural dynamics to create superelements to be combined by means of joints; here, the joints are included in the reduction procedure. This novelty makes it possible to obtain larger superelements that might be subparts of a mechanism or even the whole mechanism. Starting from the classic Craig-Bampton method, the fixed-interface normal modes and interface constraint modes are redefined including the joints contribution. A new transformation matrix necessary to obtain the reduced stiffness and inertia matrices is presented. Finally, the case study of a deployable mechanism is studied. The results of numerical calculations are compared for validation with ANSYSr results.
| Titolo: | An extended Craig-Bampton method for the modal analysis of mechanisms | |
| Autori interni: | MADDIO, PIETRO DAVIDE [Investigation] | |
| Data di pubblicazione: | 2019 | |
| Serie: | ||
| Handle: | http://hdl.handle.net/20.500.11769/381360 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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