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Computational Simulations in Automotive Safety
Krkoška, Kamil ; Svída, David (referee) ; Ramík, Pavel (advisor)
The goal of this bachelor thesis is to build up a compact overview of recent development in automotive safety, concrete methods and results reached in this branch. Here are briefly described solutions for improvement of active and passive safety and next is explained testing of these systems in crash tests and assessment of these tests by using biomechanical limits. Attention is also given to the usage and benefit of computational simulations. Next are described procedures of simulations and also software used for these simulations. Then there are mentioned examples of successful applications of computational simulations.
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Dimensional stability of investment Al castings
Úředníček, Lukáš ; Cileček, Jarmil (referee) ; Horáček, Milan (advisor)
The aim of this paper is to compare a bottom filling of a ceramic form made by lost wax process and a top filling conventional method. A computer simulation of filling and casting solidification will contribute to this comparison. The comparison includes evaluation of readings DAS and characteristic readings of porosity with chosen varieties of casting. The results show that the readings DAS did not change much but characteristic readings of porosity were much better at bottom filling. The computer simulation also showed a certain contribution in the field of model smelting technology.
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Analysis of indoor climate of spa resort
Chadima, Tomáš ; Rubinová, Olga (referee) ; Horká, Lucie (advisor)
The thesis deals with the environmental assessment of buildings, concrete objects Letní lázně at Karlova Studánka. The first part describes the issue and legislation. There is also described a method of experimental measurement and methods of moisture measurement. The second part deals with the analysis of the specified object, description of selected renewable sources and description of possible modifications of the object. The third part is devoted to modeling and simulation of the specified object in DesignBuilder. Using the model were created various simulations with various modifications in order to reduce energy intensity of the object. Results were then evaluated and compared.
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Motion control logic sequences making body in the topcoat
Křivánek, Filip ; Hloska, Jiří (referee) ; Škopán, Miroslav (advisor)
This thesis describes the finish-painting area at ŠKODA AUTO a.s. company in Mladá Boleslav. The logistic operations and transporter technology in this production hall are described here. Furthermore this thesis is concerned to sequence making of car body before the finish-painting area. The output evaluation is make of experiments and comparison of influence of an old logic of choosing a colored block with a new control logic for car body with influence on the correct shifting of car body according to a sequence number. The containers for car body including all other workplaces of the painting area are created in the Plant Simulation program.
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Effect of steric constraint and surface interactions on the behavior of block copolymers (Computer study)
Blovský, Tomáš ; Limpouchová, Zuzana (advisor) ; Lísal, Martin (referee)
In this thesis, the influence of spatial confinement and interactions with solid surfaces on the conformational behavior of symmetric diblock amphiphilic copolymers A5B5 is stud- ied using dissipative particle dynamics (DPD). In the first two chapters, the motivation for studying such systems and the description of the simulation method are given. In the remaining chapters, the effect of spatial confinement on the association behavior of diblock copolymers is studied, as well as the effect of interactions between the solvophobic block B and the solid wall. The results are compared with simulations without spatial confinement. DPD simulations showed that the attractive interaction between block B and the wall significantly changes the association behavior of block copolymers in a se- lective solvent, whereas the purely steric effect is negligible in spatially confined systems with a non-interacting wall. Keywords: block copolymers, surface interactions, steric constraint, computer simula- tion, complex solution, dissipative particle dynamics
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Crash test and its effect on cooling module design
Hačunda, Patrik ; Lapčík, Josef (referee) ; Bazala, Jiří (advisor)
Bakalářská práce se zabývá rešerší na téma „Crash test a jeho vliv na konstrukci chladícího modulu“. Práce obsahuje základní data Evropské legislativy, informace o společnostech provádějící nárazové testy, popis a funkce jednotlivých částí chladícího modulu a v neposlední řadě popis prvků kompenzující náraz v nízké rychlosti. Na základě předpisu společnosti RCAR je zpracována simulace čelního strukturálního nárazového testu.
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Physical aspects of cooling the surface (skin) of animals and the possibility of using computer simulations for their quantitative analysis
HOLÝ, Lukáš
The aim of the bachelor´s thesis was to create a basic version of a computer model, which will enable computer simulations of the cooling of a solid body by a flowing fluid, in our case specifically air. The computer model will then be further developed as part of the diploma thesis with the aim of simulating the cooling of the skin of living animals. The bachelor´s thesis also introduces the reader to the basics of working in the COMSOL Multiphysics program, especially to the individual steps in the preparation of a computer model. Physical aspects and phenomena at the basic level, which are applied during simulation, are also discussed in the thesis.
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Studium deformace tělesa metodami počítačové simulace
NOVOTNÝ, Pavel
Bachelor thesis deals with computer support of design, especially with SolidWorks CAD system and simulation using it. First, the construction systems are divided and their basic features and functions described. Further, the thesis deals with work in the SolidWorks program, especially with the process of simulation of component properties.
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Synthesis of sulphanylaminoderivatives of cyclodextrines and computational simulations of their complexes formation
Provazníková, Adéla ; Jindřich, Jindřich (advisor) ; Míšek, Jiří (referee)
This master thesis deals with synthesis of 6I -N-monosubstituted β-CD bearing a linear spacer of various lenghts containing disulfidic bond and terminated by amine. Whole series was succesfully prepared by nucleophilic substitution of toluenesulfonyl group on tosyl β-CD by a spacer's amine group. In case of the shortest spacer (cystamine) 35 % yield was achieved. Synthesis of β-CD derivatives using longer and more lipophilic spacer derived from di-, tri- and tetraethylenglycol yielded 66 to 85 %. The oligoethylene spacers were prepared by standard chemical modifications. A separation method using n-butanol elution mixtures was optimized for isolation of β-CD derivatives. To better understand the β-CD derivative behavior in solution, molecular dynamics (MD) computations were used. The synthetized species were intended to be used for fluorescent sensor construction. For the same reason the inclusion of small organic molecules in β-CD cavity was studied with molecular dynamic simulations. MD method for computation of relative binding energy was optimized and gave values of right sign and order of magnitude.
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