A biologically inspired concept is investigated which can be utilized to develop energy efficient, lightweight and applicational flexible adaptive structures. Building a real life morphing unit is an ambitious task as the numerous works in the particular field show. Summarizing fundamental demands and barriers regarding shape changing structures, the basic challenges of designing morphing structures are listed. The concept of Pressure Actuated Cellular Structures (PACS) is arranged within the recent morphing activities and it is shown that it complies with the underlying demands. Systematically divided into energy-related and structural subcomponents the working principle is illuminated and relationships between basic design parameters are expressed. The analytical background describing the physical mechanisms of PACS is presented in concentrated manner. This work focuses on the procedure of dimensioning, realizing and experimental testing of a single cell and a single row cantilever made of PACS. The experimental outcomes as well as the results from the FEM computations are used for evaluating the analytical methods. The functionality of the basic principle is thus validated and open issues are determined pointing the way ahead.
PACS - Realization of an adaptive concept using pressure actuated cellular structures
PACS - Realisierung eines adaptiven Konzepts unter Verwendung von druckbetätigten Zellstrukturen
Smart Materials and Structures ; 23 , 11 ; 115006/1-115006/17
2014
17 Seiten, 24 Quellen
Aufsatz (Zeitschrift)
Englisch
zellenförmige Struktur , Design-Parameter , Grundprinzip , Druck (Mechanik) , Experimentalanalyse , adaptives System , strukturvariables System , Aktor , Fluidtechnik , Entropie , Enthalpie , Spannungsverformung , Verformungsverhalten , Spannungsberechnung , numerische Simulation , freitragender Träger , mechanische Spannungsverteilung
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