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NVH of gearbox housing for electric vehicles
David, Jan ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This master’s thesis deals with determination of NVH parameters of the gearbox housing for electric vehicle. The introduction part is focused on the theoretical knowledge of this issue. Subsequently, the deviations of geometry on the gearbox were measure by 3D scan method. The next part of thesis is focused on the modal analysis, which is solved by numerical approach and followed by experimental verification. During the numerical calculation solving, the influence of the screw preloading on the modal properties of the structure, was also taken into account. Numerical harmonic analysis was then performed and the results were compared with the experimental approach. The conclusion is devoted to material damping and comparison of the individual results.
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Machining of precise holes for bearings
Blecha, Jan ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
This diploma thesis is about machining of exact hole specifications to fit the bearings from the the theoretical overviewof the fiiting. Another purpose is to describe; the overview of machines, the choices in bearings, and the types of gearboxes. Finally, it deals with the different methods of surface finishing, how to produce the holes for the bearings to fit in gearboxes.Finally, it deals with the different methods of surface finishing and how to produce the holes for the bearings to fit in the gearboxes
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3D print of gearbox housing model
Kopecký, Marek ; Rebenda, David (referee) ; Dočkal, Kryštof (advisor)
This bachelor thesis focuses on the design of two stage spur gearbox housing for food processor. Strength calculation was conducted using FEM analysis. State of the art from the field of transmission casing, CAD model and prototype created by 3D print are parts of the thesis. 3D printed model is meant for demonstration of bearing seats and use of normalized mechanical elements. The thesis should provide fundamentals of gearbox housing and show a solution of one case.
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Production technology for gearbox
Efimov, Anton ; Sliwková, Petra (referee) ; Zemčík, Oskar (advisor)
This thesis is devoted to the problem of the production of hulls of the gearboxes. The text of this final thesis shows the production technology for single and series production. At the same time, a critical amount of products for a different production options were established.
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Design of electrical travel of reaper`s drive unit
Otoupalík, Jan ; Černý, Michal (referee) ; Koutný, Daniel (advisor)
This bachelor thesis focuses on the design of electrical travel for universal mowing machine, which will be controlled remotely. Designed travel has independent wheel drive, the maximum speed of 10 km per hour and can be used in the terrain with a slope of 30°. The thesis deals with the determination the parameters of the travel, design of the possible electrical drive units and design with respect to the stability of the device. Another part of the thesis deals with the design of the travel and describes particular parts of the travel.
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Production of the car gearbox using Fused Deposition Modeling method
Štěrba, Ondřej ; Nejedlý, Jindřich (referee) ; Sedlák, Josef (advisor)
The aim of this work is creating a virval model of the car gearbox . The gearbox from the car Skoda Felicia was used to create the individusl parts into a final assembly. Construction of the assembly model and the layout have been implemented inAutodesk Inventor, which is a software CAx application. Final production was performed by Rapid Prototyping Technology, using the Fused Deposition Modeling equipment uPrint from ABSplus material for the purpose of visualization. The final verification was assemblin single patrs of the gearbox, including ensurance its functionality.
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