Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Engineered Damping Treatments (EDT) that have high damping characteristics per unit volume are presented. The EDTs, under consideration, consist of cellular viscoelastic damping matrices with optimally selected cell configuration, size and distribution. The cellular topology of the EDTs is designed using CAD strategies and the obtained optimal configurations will be manufactured using the state-of-the-art technology of rapid prototyping. The EDTs are modeled using the finite element method in an attempt to determine the optimal topologies that maximize the strain energy, maximize the damping characteristics and minimize the total weight. The CAD files of the optimal EDT configurations are exported to the rapid prototyping system to manufacture the molds necessary to produce prototypes of the EDTs. The damping characteristics of the manufactured EDTs are evaluated and compared with the corresponding characteristics obtained by conventional solid damping treatments in order to emphasize the importance of using optimally configured damping treatment to achieve high damping characteristics. The presented procedures are invaluable for designing efficient damping treatments for many military and civilian structures whose vibrations and noise must be effectively controlled.
Engineered Damping Treatments (EDT) that have high damping characteristics per unit volume are presented. The EDTs, under consideration, consist of cellular viscoelastic damping matrices with optimally selected cell configuration, size and distribution. The cellular topology of the EDTs is designed using CAD strategies and the obtained optimal configurations will be manufactured using the state-of-the-art technology of rapid prototyping. The EDTs are modeled using the finite element method in an attempt to determine the optimal topologies that maximize the strain energy, maximize the damping characteristics and minimize the total weight. The CAD files of the optimal EDT configurations are exported to the rapid prototyping system to manufacture the molds necessary to produce prototypes of the EDTs. The damping characteristics of the manufactured EDTs are evaluated and compared with the corresponding characteristics obtained by conventional solid damping treatments in order to emphasize the importance of using optimally configured damping treatment to achieve high damping characteristics. The presented procedures are invaluable for designing efficient damping treatments for many military and civilian structures whose vibrations and noise must be effectively controlled.
Engineered damping treatments
2001
17 Seiten, 21 Quellen
Aufsatz (Konferenz)
Englisch
Dämpfung , Finite-Elemente-Methode , Rechneranwendung im Maschinenbau , Formverfahren , schnelle Prototypentwicklung , Viskoelastizität , rechnerunterstützter Entwurf , Verformungsenergie , Schwingungsregelung , potenzielle Energie , kinetische Energie , Bewegungsgleichung , Photopolymer , Schwingungsisolation , Schwingungssteuerung und -regelung
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