Sökning: "Time Domain Averaging"

Hittade 4 uppsatser innehållade orden Time Domain Averaging.

  1. 1. Improved Statistical Methods for Elliptic Stochastic Homogenization Problems : Application of Multi Level- and Multi Index Monte Carlo on Elliptic Stochastic Homogenization Problems

    Kandidat-uppsats, Uppsala universitet/Tillämpad beräkningsvetenskap

    Författare :Khalil Daloul; [2023]
    Nyckelord :Homogenization; Multilevel Monte Carlo; Multi-Index Monte Carlo; Monte Carlo; Multiscale methods;

    Sammanfattning : In numerical multiscale methods, one relies on a coupling between macroscopic model and a microscopic model. The macroscopic model does not include the microscopic properties that the microscopic model offers and that are vital for the desired solution. LÄS MER

  3. 2. Accuracy verification of GT-Power model and reduction of computational time

    Master-uppsats, KTH/Marcus Wallenberg Laboratoriet MWL

    Författare :Viktor Dahl; Maja Dyrsmeds; [2022]
    Nyckelord :Vehicle acoustics; GT-Power; Exhaust system; Internal combustion engine;

    Sammanfattning : The noise produced by any new vehicles is tightly regulated by the European Union which have developed a standardised method for measuring the emitted noise of new vehicles. The method involves a vehicle driving past carefully positioned microphones at a specific range of engine speeds. LÄS MER

  4. 3. Signal Averaging for Digitizer ADQ214

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Barkat Ullah; [2013]
    Nyckelord :;

    Sammanfattning : Signal averaging is a signal processing technique applied in the time domain, intended to increase the strength of a signal relative to noise that is obscuring it. From a very long sequence of data, a number of smaller data sequences called records are collected. LÄS MER

  5. 4. Detecting Abnormal Vibration in a Gearbox Using Time-Frequency Domain

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Elisabeth Ibeh; [2012]
    Nyckelord :Vibration; Complex Morlet Wavelet Transform; Time Domain Averaging; Time-;

    Sammanfattning : The gearbox of Volvo Construction Equipment vehicles may be considered as a critical mechanical component. Gear failures may cause costly down time while the gearbox is repaired. To improve uptime and reduce service costs, reliable and robust real time condition monitoring and diagnostics of gearboxes based on vibration data may be considered. LÄS MER