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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Machanical testing of solder joints
 Drab, Tomáš ; Šandera, Josef (referee) ; Szendiuch, Ivan (advisor)
The project contains theoretical research of electrotechnical manufacture for lead-free reflow soldering. It contains characterization of soldering processes. Includes variations of solder paste printing, principles of part placing and also reflow soldering process. The project appoints possibilities of testing solder joints strength, mainly focused on mechanical vibrations. It describes a design and preparation of solder joint strength test methods by mechanical vibrations. It compares influence of vibrations on part types and solder alloys.
Detailed record
Solution of flow and formation of vortex structures behind a free-standing pillar
 Pluskal, Tomáš ; Pochylý, František (referee) ; Fialová, Simona (advisor)
The instability of the flow and the formation of vortices when surrounding free-standing pillars is a problem that has been solved for a long time. In most engineering applications we try to minimize their influence. However, some newer applications require them to be maximized. This deals with the study of these effects on the public street lamp using computer modelling in the Ansys Fluent and their use for the production of electricity. The information obtained in this way is then used for the design of a vibration generator, which is then used to transform the energy from mechanical vibrations to electricity.
Detailed record
Machanical testing of solder joints
 Drab, Tomáš ; Šandera, Josef (referee) ; Szendiuch, Ivan (advisor)
The project contains theoretical research of electrotechnical manufacture for lead-free reflow soldering. It contains characterization of soldering processes. Includes variations of solder paste printing, principles of part placing and also reflow soldering process. The project appoints possibilities of testing solder joints strength, mainly focused on mechanical vibrations. It describes a design and preparation of solder joint strength test methods by mechanical vibrations. It compares influence of vibrations on part types and solder alloys.
Detailed record

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