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Production of Multilayer PCB
Janda, Ondřej ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This master thesis introduces the problematics of multilayer printed circuit boards. Theoretical part is focused on materials used for production of multilayer PCB and their parameters. At the same time, it focuses on the pressing process of multi-layered PCB, the types of presses used and their advantages and disadvantages. Practical part describes the methodology and testing of the PCB to identify the reliability of chosen electrical parameters. Testing is aimed to simulate thermal stress during machine soldering and during thermal stress in the target environment.
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Monitoring degradačních vlastností karbonu
Němeček, Václav
In the diploma thesis there was made an attempt to compare the samples of carbon fiber composite materials (carbon). The teoretical part presents knowledge of the composition of composite material. Next, there is described the production and possible use of carbon composite materials in various technological branches. In the practical part the thesis focuses on the testing of composite materials made of carbon fiber with different orientation and weights of fibers. There is performed a tensile test and simultaneous monitoring of the course of the tensile test by acoustic emission. Finally, the statistical processing of the measured values occurs.
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Design and analysis of the road bike made from composite material
Dvořáková, Barbora ; Kubík, Petr (referee) ; Šebek, František (advisor)
This diploma thesis is focused on the design and analysis of road bike frame made of composite material. The thesis is divided into two parts. In the first part, there is a research focused on the usage of composite materials in relation to making bike frames. The main emphasis is placed on fiber composites, which are most common in cycling. Manufacturing process and production technology are discussed. The aim of the second part is design and the numerical simulation of frame in relation to stand-ard, which is used for the testing of frames. Rigidity and strength are evaluated. The final frame is obtained from the initial design due to several iterations. In conclusion, results are evaluated and recommendations for future work are given.
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Manufacturing concept of a composite swing arm
Gregor, Lukáš ; Slaný, Martin (referee) ; Zouhar, Jan (advisor)
The subject of this master’s thesis is manufacturing design and production of CFRP swingarm prototype for off-road motorcycle. Theoretical part describes conventional types of swingarm, provides basic introduction to composites and manufacturing technologies. Practical part describes production steps, assembly jigs and assembly process. The last part of thesis deals with measuring stiffness properties using photogrammetry system TRITOP.
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Technology of manufacturing of carbon fibre composites by hot forming
Přikryl, Pavel ; Slaný, Martin (referee) ; Zouhar, Jan (advisor)
This master’s thesis deals with the composite materials and especially aims on the carbon and glass fiber composites. It points out different composition types and manufacturing methods which reflect in the different mechanical properties, final quality of the manufactured part and also in the manufacturing time. The practical part includes two particular manufacturing methods using prepregs, one cured in an autoclave and one by hot compression moulding.
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Application of composite materials for sport optics
Kupčák, Radim ; Slaný, Martin (referee) ; Zouhar, Jan (advisor)
In Its first half this master's thesis describes composite materials with carbon fiber reinforced plastics being the main focus point. An overview of production technologies follows. The major objective of the second part of this master's thesis is to design and manufacture a simplified model of an optical device using prepregs.
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Evaluation of dynamic damage of composite structure
Štefanovič, Peter ; Jetela, Václav (referee) ; Klement, Josef (advisor)
The first part of the diploma thesis with name „Evaluation of dynamic damage of composite structure“ focuses on designing device for impact experiments and suitable laminate samples made from prepregs. The conditions and problems of impact tests are also demonstrated here. The second part of the thesis deals with non-destructive control of damaged specimens based on thermography. This is mainly the extent of defects in the impaired area and the evaluation of results using the pulse infrared thermography method. Finally, the relative deviation in the crack size comparison between the visual method and thermographic are compared. Consequently, the residual strength of the damaged samples against undamaged specimens are compared using bending tests.
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Design of Composite Chassis for Formule Student
Gregor, Lukáš ; Šplíchal, Jan (referee) ; Mališ, Michal (advisor)
This bachelor thesis deals with structural design and manufacturing of Formula student chassis according the latest rules with primary aim to composite monocoque. In theoretic part is briefly described Formula student and the team. It shows actual used designs of chassis in competition and characteristics of composites and sandwich structures. In design section is described the design of the chassis due to safety, ergonomics and connections to other parts of the car. At the end is shown the manufacturing process of CFRP monocoque. The output of this thesis is made chassis of Dragon 8.
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Formula Car Monocoque Design
Žídek, Tomáš ; Dundálek, Radim (referee) ; Ramík, Pavel (advisor)
The diploma thesis describes the design of a carbon fiber monocoque Formula Student car according to current rules. The first part is focused on construction solutions of frames used in Formula Student cars. Following is a summary of the important rules for constructing composite monocoque. Subsequently are described composite materials and their properties. The main part of the thesis deals with the structural design of the CAD program and a computational model to simulate the load case in FEM program. The obtained results from the analysis of the monocoque are compared with the values allowed by the rules of Formula Student. In conclusion of this thesis is evaluated the proposed composite monocoque.
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ML PCB with Microvia - Production Line Design
Libich, Jiří ; Blansko, Jiří Zouhar, ČEMEBO (referee) ; Starý, Jiří (advisor)
This Bachelor thesis deals with the production of Printed Circuit Boards(PCBs), especially of the High Density Interconnection(HDI) type with microconnections. The aim of my thesis is to design and implement an technology equipments for the production of multilayer PCBs, more precisely four-layer PCBs, with the use of modern technology. The design was carried out for the company dealing with the production of PCBs. The Bachelor thesis was done in cooperation with ČEMEBO BLASNKO s.r.o.
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