Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Steffen Opitz"'
Autor:
Thomas Haase, Roland Ortiz, Myriam Kaminski, Eberhard Kaulfersch, Yves Toso, Steffen Opitz, Till Julian Adam, Marc Garbade, Lars Trampe
In this presentation an overview of the WP1.2.3 "Advanced reinforcements" is presented. The activities with respect to reinforcements, advanced materials, damage assessment and fatigue predictions are summarized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b34a822352cc7ead648a17a60bde2f7
https://doi.org/10.5281/zenodo.5849618
https://doi.org/10.5281/zenodo.5849618
Publikováno v:
Adaptronics – Smart Structures and Materials ISBN: 9783662613986
This chapter is dedicated to the target field of adaptronics “Active Vibration Control”. Following on from the previous chapter, simple analytical considerations on beam models provide the basis for modeling vibrations in continuous systems with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20fc594ce999c739a9295cdfa3630e31
https://doi.org/10.1007/978-3-662-61399-3_6
https://doi.org/10.1007/978-3-662-61399-3_6
Publikováno v:
CEAS Aeronautical Journal. 8:271-286
A back-flow flap attached to the suction side of an airfoil is investigated in both passively and actively actuated modes for the control of dynamic stall. This method of dynamic stall control has low power requirements and no parasitic drag when not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::887543eb78a3f7c3a9d5e2b3dcb85762
https://doi.org/10.1007/s13272-017-0237-4
https://doi.org/10.1007/s13272-017-0237-4
Publikováno v:
Adaptronik ISBN: 9783662558836
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d32b8a063d921e37580fbdd8169b4ca
https://doi.org/10.1007/978-3-662-55884-3_6
https://doi.org/10.1007/978-3-662-55884-3_6
Publikováno v:
Advances in aircraft and spacecraft science. 1:69-91
Numerical investigations are presented, which show that a back-flow flap can improve the dynamic stall characteristics of oscillating airfoils. The flap was able to weaken the stall vortex and therefore to reduce the peak in the pitching moment. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a2bfad03c65056987dd370de068d24e
https://doi.org/10.12989/aas.2014.1.1.069
https://doi.org/10.12989/aas.2014.1.1.069
Dynamic stall is a major concern for highly loaded helicopter rotors in fast forward flight. The potential of a back-flow flap for dynamic stall reduction is investigated. The flap assembly is mounted on the suction side of a helicopter main rotor-bl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea374762d9103bcb46e44e4c14f2f444
https://elib.dlr.de/103473/
https://elib.dlr.de/103473/
Publikováno v:
Aerospace Science and Technology. 15:216-223
Since the early days of rotary wing aircrafts the unsteady flow conditions in the rotor disk and unbalanced masses are causing intense vibratory loads and noise. Even modern helicopters still suffer from these drawbacks. This diminishes the ride qual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb937f40b820dfdbd94cbd1f8d2d9a43
https://doi.org/10.1016/j.ast.2010.12.008
https://doi.org/10.1016/j.ast.2010.12.008
Autor:
Steffen Opitz
Vor allem der demografische Faktor aber auch weitere Umweltbedingungen werden zu einem scharfen Wettbewerb um Talente führen - und diese Talente sind die für viele Unternehmen entscheidenden Wettbewerbsfaktoren. Deshalb stellt sich allgemein die Fr
Smart materials that are directly embedded in the rotor blade structure are an attractive concept for active blade control. A promising approach is the use of anisotropic piezoelectric strain actuators embedded in the rotor blade skin. Especially in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40ae8ca797010c36e84eb347bdb18aff
https://doi.org/10.1017/s0001924000011374
https://doi.org/10.1017/s0001924000011374
Publikováno v:
Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation.
In the field of smart structures, piezoceramic actuators are wildly used for vibration reduction and acoustic manipulation of structures. Those applications typically run at frequencies between 10 Hz and 10k Hz. Prominent examples are the piezocerami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::501efb153cdb4409e083dc82de0bb792
https://doi.org/10.1115/smasis2014-7509
https://doi.org/10.1115/smasis2014-7509