Essays about: "sound and vibration measurements"
Showing result 1 - 5 of 12 essays containing the words sound and vibration measurements.
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1. Estimation of Blocked Forces in an Assembly with Rear Drive Unit as a Source
University essay from KTH/Maskinkonstruktion (Inst.)Abstract : Experimental validations are widely used for studying dynamic structural behaviors and these studies involve defining the structures completely as being used in real time. While in numerical simulations such detailed features are not specified to ease the computation, thereby deviating from accurate results. READ MORE
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2. Modelling of the vibrational behavior of housing plates filled with fibrous material
University essay from KTH/Marcus Wallenberg Laboratoriet MWLAbstract : 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
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3. Fault detection of planetary gearboxes in BLDC-motors using vibration and acoustic noise analysis
University essay from Uppsala universitet/Institutionen för elektroteknikAbstract : This thesis aims to use vibration and acoustic noise analysis to help a production line of a certain motor type to ensure good quality. Noise from the gearbox is sometimes present and the way it is detected is with a human listening to it. This type of error detection is subjective, and it is possible for human error to be present. READ MORE
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4. Acoustic performance of timber volume elements
University essay from Lunds universitet/Teknisk akustikAbstract : The thesis investigates the acoustic performance of light weight timber constructions known as timber volume elements and vibration insulation methods employed in these. Common materials used in light weight timber floor constructions and different floor configurations consisting of these materials were also studied. READ MORE
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5. Dynamic Analysis of the Interaction Between Vehicle Floor Panels and Interior Carpets - Simulations and Measurements
University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaperAbstract : Floor panels of vehicles are known to radiate structure-borne sound into the vehicle compartment. To reduce the structure-borne sound, numerical models are used in the development of vehicles to evaluate different design options of the vehicle body. READ MORE