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Digitalization of ultra-light plane fuselage for production of accurate mould
Véle, Filip ; Sedlák, Josef (referee) ; Zouhar, Jan (advisor)
This work describes digitalization and creation of ultralight aircraft 3D model in order to create accurate moulds for fuselage lamination. Right choice of technology is based on background research. Designed procedures are described in detail as well as used equipment, hardware and software. Objective of this project is application of available methods of digitalization to create 3D aircraft model and its usage for accurate mould design.
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Measurement and evaluation of the inserts using an optical scanner
Vanek, Richard ; Šrámek, Jan (referee) ; Marek, Tomáš (advisor)
This bachelor thesis focuses on problematics of scanning damaged press dies by an optical 3D scanner. The bachelor thesis starts with a description of 3D scanning, its use in various branches of industry as well as defects that can occur during scanning. This work provides an overview of the methods of 3D scanning and 3D scanners. Another part of the bachelor thesis deals with the procedure of scanning a damaged press die using the optical scanner STEINBICHLER COMET LED 5M followed by processing the acquired data and creating a 3D CAD model. In the final part, the bachelor thesis focuses on comparing and evaluating the obtained data.
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Decompilation of High-Level Constructions in C++ Binaries
Jakub, Dušan ; Křivka, Zbyněk (referee) ; Matula, Peter (advisor)
The thesis addresses the decompilation of high-level object-oriented C++ language from a machine code. The term reverse engineering is defined and existing decompilers are described with emphasis on their ability to reconstruct C++. AVG decompiler project is introduced, to which this thesis contributes. C++ language is analysed, both on a logical level and in the machine code and existing methods of decompilation are described. On this basis a novel method is introduced, capable of decompiling classes, their hierarchy, constructors, destructors and definitions and usages of virtual methods. The method is implemented, tested and evaluated. In the conclusion, several suggestions for future development of this project are presented.
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Application of CAD/CAM software PowerMILL 2020 for reverse engineering
Rais, Tomáš ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
This thesis is dealing with usage of software PowerMILL 2020 in reverse engineering and introduction of additive technologies in this software. The part of a Rubbik’s cube was chosen as a model for this thesis. There will be assigned particular dimensions to ensure dimensions functionality, in the first part. In the second part, there will be designed tools, calculated technological conditions and designed machines for production. Those technological conditions will be used in next chapter, where the NC program for the production of a part will be created. In the last chapter there will be briefly executed technical – economic evaluation of designed variant.
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Optical digitizing systems
Chren, Tibor ; Paloušek, David (referee) ; Koutný, Daniel (advisor)
This thesis describes various optical systems which are used in reverse engineering and have to present basic review of systems for digitalization with main focus on optical scanners. At first, the brief summary of development in 3D scanner field is presented. In next part of the work are introduced basic techniques of getting the third dimension. Work also divides 3D scanners by the different aspects. At the end of the work, the possible use of 3D scanners is discussed.
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Using "reverse engineering" approach when making replica of Al casting by lost wax technology
Bezděk, Adam ; Cileček, Jarmil (referee) ; Horáček, Milan (advisor)
The aim of this thesis was to produce a prototype casting of aluminum alloy with usage of reverse engineering technology. In a production process surface quality and dimensional accuracy was optimized. 3D scanning, FDM technology, ABSplus surface finishing possibilities and investment casting technology is introduced in theoretical part of this thesis. Practical part of the thesis includes description of original parts, their 3D scanning, usage of RE and RP, production of new castings and evaluation of their dimensional accuracy and surface roughness.
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Increase of Charging Efficiency of 140kW CNG Engine
Hadrava, Martin ; Vančura, Jan (referee) ; Svída, David (advisor)
The master’s thesis is focused on flow analysis work filling in turbocharged CNG engine. The research method is reverse engineering. The intake canal is casted and than scanned by 3D Scanner ATOS. The CAD model is created in program Creo Parametric 2.0. In the created interactive model is simulated flow in the CFD program Star CCM +. The air intake system is modified for increasing the charging efficiency of the engine.
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Methods of Ransomware Analysis and Detection
Vojtáš, Samuel ; Kolář, Dušan (referee) ; Zobal, Lukáš (advisor)
The purpose of this thesis is to demonstrate the threat of malware and to describe its forms. Special focus is put on ransomware - its historical evolution, method of analysis, detection, and recovery from it. Various techniques of reverse engineering are also introduced alongside concepts related to it, such as static and dynamic analysis or sandboxing. Paper centers around creating detection mechanisms and malware classification. Company Avast provided samples of several ransomware families for the analysis to create detection YARA rules and to describe samples' behavior. The process of development of detection mechanisms for ransomware threats is shown alongside the method to decrypt files encrypted by various ransomware families that contained cryptography errors. The end of the thesis sums up the resulting data regarding the efficiency of defense mechanisms.
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Application of modern methods for production of mobile phone storage stand
Tesař, Jaroslav ; Nejedlý, Jindřich (referee) ; Sedlák, Josef (advisor)
The thesis was made as a bachelor’s project on Faculty of Mechanical Engineering, Brno University of Technology. In the theoretical part methods of Reverse Engineering were described. The principle of the following technology, the Rapid Prototyping, was also explained and the summary of advantages and disadvantages and use in technical practice for the most important methods was made. In the experimental part of the thesis the modern methods were applied for manufacturing a cell phone holder. By this the possibility of these technologies to work with complexly shaped models was verified. The casting to a silicon form was used as the alternative method of manufacturing. The summary of possibilities of manufacturing with these technologies and technical and economical evaluation were made in the end of the thesis.
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