Essays about: "Marcus Wallenberg"
Showing result 1 - 5 of 65 essays containing the words Marcus Wallenberg.
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1. Accuracy verification of GT-Power model and reduction of computational time
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : 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. READ MORE
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2. Vibration reduction over junctions in buildings
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : Structure borne sound can travel multiple paths from one office to another and choosing to sound insulate a specific building element can be difficult since all the building elements are connected together and form a coupled system. The current approach by engineers when investigating transmission paths between spaces in a building is using a computer model and assuming that the junctions are firmly clamped or free. READ MORE
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3. Experimental Study of Installation Effects on Cooling Fan Noise
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : Owing to the ever-changing developments of battery and electric powertrain, vehicle electrification is the trend in the future. Without the presence of a combustion engine, masking effect from it reduces and noises from other components become perceivable. Among all, the cooling fan is one of the major noise sources. READ MORE
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4. A Numerical Approach for Wind Tunnel Noise Control
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : A wind tunnel from the 1950s located in Bromma, Stockholm, once used for military research is today used for commercial activities. Today the tunnel is used for indoor wingsuit flight and the facility has an interest in reducing the overall noise generated by the tunnel. Acoustic measurements indicate noise problems in the 50 Hz range. READ MORE
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5. The prospects of using acoustic particle separation techniques to separate heavy metals from lake- and seabed sediments
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : This work aims to investigate if it is realistic to use acoustic particle separation techniques for separating heavy-metals from pump-dredged seabed sediments on a large scale. A premise for the project has been that the material should undergo hydrothermal carbonization (HTC) before acoustic treatment. READ MORE