TY - CHAP A1 - Mertens, Josef T1 - Reduction of aerodynamic drag (RaWid)-Status after the first year of the program T2 - New results in numerical and experimental fluid mechanics. - (Notes on numerical fluid mechanics ; 60) N2 - The technology programme “Reduction of aerodynamic drag (RaWid)” for high speed aerodynamics at Daimler-Benz Aerospace Airbus is sponsered by the German ministry for education, research and technology since July 1, 1995. Connected to this industrial programme are the cooperation programmes “MEGAFLOW” under leadership of the DLR and “Transition” by the DFG, and several contributions by DLR and universities. The programme is oriented towards technologies required for a MEGALINER which gains momentum by the ambitious plans for a new large Airbus A3XX. In the first year new technological steps were undertaken in theory, design and experiment. Some critical steps were verified by wing designs checked in wind tunnel tests. KW - Wind Tunnel KW - Aerodynamic Drag KW - Flight Test KW - Friction Drag Y1 - 1997 SN - 3-528-06960-0 U6 - https://doi.org/10.1007/978-3-322-86573-1_2 SP - 7 EP - 14 PB - Vieweg CY - Braunschweig [u.a.] ER - TY - JOUR A1 - Gerhardt, Hans Joachim A1 - Krüger, O. T1 - Building shape influence on local wind loads JF - Proceedings of the 2nd European & African Conference on Wind Engineering : 2 EACWE, Palazzo Ducale, Genova, Italy, June 22-26, 1997 / ed. by Giovanni Solari. - Vol. 2 Y1 - 1997 SN - 88-86281-19-6 N1 - European and African Conference on Wind Engineering <2, 1997, Genova> ; ISBN für beide Bände PB - Servizi Grafici Editoriali CY - Padova ER - TY - PAT A1 - Schmitz, Günter A1 - Schebitz, Michael A1 - Esch, Thomas T1 - Aus der Ruhelage selbstanziehender elektromagnetischer Aktuator N2 - Elektromagnetischer Aktuator zur Betätigung eines Stellgliedes (2), mit wenigstens einem Elektromagneten (4) und einem mit dem Stellglied (2) verbundenen Anker (3), der gegen die Kraft einer Rückstellfeder (6) aus seiner Ruhelage in Richtung auf den Elektromagneten (4) bewegbar ist, mit einer Rückstellfeder (6), die eine nicht lineare, bezogen auf die Ruhelage des Ankers (3) progressiv ansteigende Kennlinie aufweist. Y1 - 1997 N1 - Patent DE000019529152B4 2005.12.29 ER -