61–79 von 79 Ergebnissen
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    An over-view of UTIAS research on the dynamic stability of air cushion vehicles

    Hinchey, M.J. | Tema Archiv | 1982
    an Helmholtz resonator with the slug of air in the duct oscillating on the plenum air spring. For this work, a unique facility was developed ...

    Acoustic resonance in the combustion conduits of a steam locomotive

    Ziada, S. / Oengören, A. / Vogel, H.H. | Tema Archiv | 1998
    oil burners which, in turn, enhances the resonance. By means of the acoustical model, a Helmholtz resonator has been designed and optimized to ...

    Konzept einer wissensbasierten Regelung für ein Flugtriebwerk

    Hiesener, S. | Tema Archiv | 1993
    Modellvorstellung des Helmholtz-Resonators entwickelt und führt nach einem Strömungsabriß im Vedichter einen stabilen Strömungszustand wieder herbei. In ...

    Development of a three-dimensional free shear layer

    Riley, A.J. / Lowson, M.V. | Tema Archiv | 1998
    features disappear as the sub-vortices are wrapped into the main vortex core. A local three-dimensional Kelvin-Helmholtz-type instability is ...

    Der Aeroakustik-Fahrzeugwindkanal von Ford

    Grundmann, R. / Kramer, C. / Konrath, B. et al. | Tema Archiv | 2001
    ; 5. Einbau von bedämpften Resonatorkulissen (Mitschwinger); 6. Einbau eines Lochabsorbers (Helmholtz-Resonator) im Nabenanströmkörper des ...

    Infrasound pressure levels in vehicles

    Onusic, H. / Mizutani, V.S. | Tema Archiv | 2005
    sometimes like a cavity called Helmholtz resonator. The windows, the solar roof apertures and the volume are important parameters in this research ...

    Sound transmission loss of double-panel partitions with internal microperforated panel absorbers

    Thomas, Christian / Weltin, Uwe / Petersen, Sven | Tema Archiv | 2003
    -mass frequency of the partition. Instead of Helmholtz resonators the use of microperforated panel absorbers (MPAs) is theoretically and ...

    DeSCAS - Design process for the development of safety-critical advanced driver assistance systems

    Gacnik, Jan / Jost, Henning / Beisel, Daniel et al. | Tema Archiv | 2008
    Funded by the Helmholtz Association, the Virtual Institute 'Design of Safety-Critical Automotive Systems (DeSACS)' strives for introducing ...

    Hull vibration excitation due to monopole and dipole propeller sources

    Kinns, R. / Bloor, C.D. | Tema Archiv | 2004
    scale. A simple analysis of dipole and monopole sources is used to interpret results and to demonstrate why solution of the Helmholtz equation ...

    Tonal noises from small cavities on motor vehicles and a case study of a whistling mirror

    Milbank, J. / Watkins, S. / Kelso, R. | Tema Archiv | 2000
    Helmholtz resonance have been determined as the main mechanisms for tonal noise production. These three mechanisms have been briefly reviewed. By ...

    Vehicle noise investigation using spatial transformation of sound fields

    Hald, J. / Ginn, J.B. | Tema Archiv | 1987
    intensity by means of acoustical holography while the more distant fields can be determined by application of Helmholtz' integral equation. A ...

    Air intake system modeling for vibro-acoustic assessment

    Nunes, R.F. / Lima, D. de / Nogueira, C.F. et al. | Tema Archiv | 2001
    on this zones can reduce the acoustic energy emitted to the exterior. As a conclusion, the use of the Helmholtz resonators close to the ...

    The design of low frequency underwater acoustic projectors: present status and future trends

    Decarpigny, J.N. / Hamonic, B. / Wilson, O.B. jun. | Tema Archiv | 1991
    Schlagwörter: HELMHOLTZ RESONATOR

    Modeling of a bulk current injection setup for susceptibility threshold measurements

    Sultan, M.F. | Tema Archiv | 1986
    electromagnetic cells, and Helmholtz coils. Although whole-vehicle testing may be viewed as a more realistic representation of the EMI environment, bench ...

    Dynamics of laminar separation bubbles at low-Reynolds-number aerofoils

    Hain, R. / Kähler, C.J. / Radespiel, R. | Tema Archiv | 2009
    dominant frequencies and magnitudes of the KH (Kelvin-Helmholtz) instabilities associated with an LSB (Laminar Separation Bubble). It was shown ...

    Brightness appearance of automotive front lighting light sources - a series of visual experiments

    Bodrogi, Peter / Böll, Marvin / Schiller, Christoph et al. | Tema Archiv | 2009
    . chromatic contribution to brightness (Helmholtz-Kohlrausch effect); 2. contribution of the rod photoreceptors (Purkinje effect). At mesopic ...

    Verkehrszustand als Basis für adaptive Fahrerassistenz am Beispiel der Autobahnauffahrt

    Buld, Susanne / Hoffmann, Sonja / Totzke, Ingo et al. | Tema Archiv | 2006
    psychologischer Einrichtungen (DLR, IZVW und ika), das von der Helmholtz-Gemeinschaft über drei Jahre gefördert wurde. Für das Auffahren auf die Autobahn ...

    Schlüsseltechnologien Mechatronik. Von der Raumfahrt bis zur Medizin

    Hirzinger, Gerd | Tema Archiv | 2007
    Airbus 340 um 100 kg. Im Rahmen des Konstrukts virtuelle Institute der Helmholtz-Gemeinschaft hat das Institut in jüngster Zeit gemeinsam mit der ...