Sökning: "anechoic sources"

Hittade 4 avhandlingar innehållade orden anechoic sources.

  1. 1. Fluid vibration in piping systems : a structural mechanics approach using exact finite elements

    Författare :Anders Frid; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; real and complex modal analysis; exact finite element mobility method; piping system; rigid-body models; closed compartments; gravity influence; linear continous systems; prescribed pressures; mean flow; anechoic sources; harmonic and transient excitations; Uniaxial fluid vibration; non-proportional damping; velocities and accelerations;

    Sammanfattning : .... LÄS MER

  3. 2. 3D Auditory Displays for Driver Assistance Systems

    Författare :André Lundkvist; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : A constantly increasing number of advanced driver assistance systems are implemented in cars.The driver is required to interpret the data reported by these systems while driving, and thereforeit is important to know how the information signals provided by such systems affect the driver. LÄS MER

  4. 3. On measurement, assessment and control of diesel engine noise

    Författare :Anders Ågren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : The thesis comprises six papers with the overall theme of measurement, assessment and control of diesel engine noise, with an emphasize on control. The radiation of noise is shown to be dominated by the low end of the engine sides and by the engine front. LÄS MER

  5. 4. Experimental and multivariate analysis methods for sound quality evaluation of diesel engines

    Författare :Örjan Johansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

    Sammanfattning : Noise control and sound quality analysis are important, since noise has been registered to be a predominant factor in stress and a source of great annoyance. Traffic noise is a problem and a major part of this noise comes from heavy vehicles. LÄS MER