Essays about: "Wallenberg"

Showing result 16 - 20 of 82 essays containing the word Wallenberg.

  1. 16. Attenuation of structure-borne vibrations induced by trains passing railway switches

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Fredrik Lindström; [2020]
    Keywords : ;

    Abstract : The study of structure-borne vibrations caused by railway traffic is becoming increasingly relevant along with the expansions of cities, as building projects are forced towards more sensitive areas, e.g closer to railway tracks. With high enough vibration levels, there is a risk for human annoyance inside buildings. READ MORE

  3. 17. Modelling of the vibrational behavior of housing plates filled with fibrous material

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Da Cao; [2020]
    Keywords : ;

    Abstract : Silencers are used in vehicles to reduce the noise in the engine system. However,silencers themselves may produce break-out noise due to the interactionwith the exhaust gas ow and structure. In this Master thesis project, thenumerical simulation of vibrational behavior of housing plates of silencers isdeveloped. READ MORE

  4. 18. Simulating Low Frequency Reverberation in Rooms

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Mattias Svensson; [2020]
    Keywords : Low frequencies; Room acoustics; Finite Difference Time Domain method; FDTD.; Rumsakustik; låga frekvenser; Finite Difference Time Domain metoden; FDTD.;

    Abstract : The aim of this thesis was to make a practical tool for low frequency analysis in room acoustics.The need arises from Acad’s experience that their results from simulations using raytracing software deviate in the lower frequencies when compared to field measurements inrooms. READ MORE

  5. 19. The autonomous crewmate : A sociotechnical perspective to implementation of autonomous vehicles in sea rescue

    University essay from Linköpings universitet/Interaktiva och kognitiva system

    Author : Oscar Lundblad; [2020]
    Keywords : Human autonomy collaboration; Public safety; Sea rescue; SSRS; Emergency services; Autonomous vehicles; Unmanned aerial vehicle; Unmanned Surface Vehicle; uav; usv; SAR; Human machine interaction; HMI; Sociotechnical systems; cognitive work analysis; CWA; sociotechnical perspective; implementation; drone; quadcopter; boat; rescue at sea; case; novel technology; appropriate technology; thematic analysis; WASP; Wallenberg Artificial Intelligence Autonomous Systems and Software Program; Maritime; swedish sea rescue; uxv;

    Abstract : The usage of autonomous vehicles is starting to appear in several different domains and the domain of public safety is no exception. Wallenberg Artificial Intelligence, Autonomous Systems and Software Program (WASP) has created a research arena for public safety (WARA-PS) to explore experimental features, usages, and implementation of autonomous vehicles within the domain of public safety. READ MORE

  6. 20. Reflected Train Noise in Swedish Noise Prediction Methods, a comparison between measurements, Nordic Prediction Method, Nord2000 rail and CNOSSOS

    University essay from KTH/Marcus Wallenberg Laboratoriet MWL

    Author : Ka Hou Karl Ho; [2020]
    Keywords : Nord2000; NMT; Noise prediction method; sound propagation model; source model for railway noise; reflected sound; Nord2000; nordiska beräkningsmodellen för tågbuller; bullerberäkningsmodell; Ljudutbredningen modellen for tåg buller; källsmodell för tåg buller; fasadreflektioner;

    Abstract : The Swedish law requires a set of noise limit for residential buildings for health and safety. Conventionally, the Nordic Prediction Method (NMT) is used to predict the noise. However Nord2000 and CNOSSOS is going to be introduced to replace NMT. READ MORE