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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Squealing noise analysis from the tram transport and its influence on the environs
 Prokopová, Tereza ; Pazdera, Luboš (referee) ; Smutný, Jaroslav (advisor)
Bachelor’s thesis is focused on issues with evaluations of the effects of noises from tram transport. The part of the thesis is analysis of those issues, acquisition of data in locality Starý Lískovec tram loop; follow editing data and compilation of acoustic model. I’ll do the assessment results by compilation of acoustic situation in program SoundPlan. Last part of bachelor’s thesis is formulation of conclusions and recommendations for practice.
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Effect of operating conditions on tram noise in real traffic
 Lounek, Kryštof ; Galas, Radovan (referee) ; Valena, Martin (advisor)
The bachelor's thesis investigates the influence of weather conditions on the squeal noise produced by the contact of the wheel with the top of the rail. Weather conditions are defined here as humidity, air temperature and the presence of rain. The thesis also compares specific trams in terms of their propensity to produce squeal noise and the parameters of the noise produced. The data sets used in the analysis come from a one-month period from a stationary module located near the track curve in the Brno-Komín tram loop. The graphical dependencies, which are the result of the work, describe a decreasing tendency of the average noise level depending on the humidity and an increasing tendency of the average noise level depending on the temperature. They also show a significant reduction in the occurrence of squeal noise during rain. As far as the tram comparisons are concerned, tram no. 1713 produces the most squeal noise, in fact in 86% of the cases. It also has one of the highest values of all noise parameters. The results of this work can help to explain the variable behaviour of squeal noise and can also be used to identify specific noisy trams.
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Squealing noise analysis from the tram transport and its influence on the environs
 Prokopová, Tereza ; Pazdera, Luboš (referee) ; Smutný, Jaroslav (advisor)
Bachelor’s thesis is focused on issues with evaluations of the effects of noises from tram transport. The part of the thesis is analysis of those issues, acquisition of data in locality Starý Lískovec tram loop; follow editing data and compilation of acoustic model. I’ll do the assessment results by compilation of acoustic situation in program SoundPlan. Last part of bachelor’s thesis is formulation of conclusions and recommendations for practice.
Detailed record

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