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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Analýza šíření tlakové vlny v aortě / Analysis of pulse wave propagation in aorta

Holubář, Oldřich January 2011 (has links)
This master thesis is focused on usage of monitoring pulse wave propagation in aortic system in a field of diagnostic abdominal aortic aneurysm (AAA). There is a description of cardio-vascular system and its pathology in a form of AAA. A summarization of temporary diagnostic method was created and some new methods were proposed. This new methods presume monitoring of pulse wave propagation. Fluid structure interaction (FSI) analyses of pulse wave propagation were performed on simplified models of geometry which representing specific sections of aorta. The goal of these analyses was to prove usage of FSI method in a future development of proposed diagnostic methods.
82

Návrh přední části rámu vozidla Formule Student / Formula Student Front Chassis Part Design

Lhota, Martin January 2011 (has links)
Martin Lhota Formula Student Front Chassis Part Design DW, IAE, 2011, 75 pp, 62 pics The aim of the thesis is to suggest a suitable configuration of Formula Student Car’s front part of a frame according to current rules of SAE organization in the Formula Student competition. In this proposal low weight, manufacturability and sufficient torsion rigidity were preferred, whereas previously suggested solutions were reflected. At first there is presented a list of important SAE rules for the construction of front part followed by a short recherché of development of the constructional solution of frames and frames suitable for Formula Students car. Secondly there is described process during frame construction design and its computational model for the analysis which simulates torsion with the support of MKP system. Gained results and some parameters of the frame are compared with similar version of the frame construction which was suggested and made for the first Formula Student Car of our University. Moreover, there is also presented summary of suggested frame and also recommendation with possible alternatives for the next development.
83

Návrh geometrie kontejneru pro skladování ropných produktů / Design of tank container for storage of petroleum products

Bezděk, Lukáš January 2011 (has links)
This diploma thesis presents design of oil storage container type ISO 1CC. The container is designed according to ISO standards. The standards prescribe or limit some of the container dimensions, other dimensions are derived from specific purpose of the container. The container can be considered either as a transport container (empty) or as a stationary tank (full). Therefore, the load conditions are given by ISO for transport containers in the first case and by ČSN EN for the latter. The goal is to design and evaluate various container designs by FEM (finite-element method) analysis.
84

Baja SAE Vehicle Design / Návrh vozidla Baja SAE

Hajdušek, Zdeněk January 2012 (has links)
This master’s thesis describes the design of the Baja SAE vehicle according to the applicable rules. In the beginning is the work focused on search competing vehicles and subsequently on design the first Baja SAE vehicle in the Czech republic. This thesis is systematically divided into chapters according process to the vehicle design. The main part of a master's thesis is design of axle kinematics in software Adams and frame design. The model was designed in Catia V5. The frame was analysed of torsional stiffness and stress in software ANSYS.
85

Deformačně napěťová analýza stehenní kosti s využitím dat z počítačové tomografie / Stress strain analysis of the femur based on the CT data collection

Nečas, David January 2012 (has links)
The area of clinical biomechanics is a rapidly growing engineering discipline in the world of today. This master's thesis is concerned with the stress-strain analysis of human femoral neck. In the first place it emphasizes the creation of computational model, especially the model of bone material, because of its high level of inhomogeneity. The creation of the computational model has been tested using several software packages, which are often mentioned in connection with the biomechanical tasks. The latter part of the thesis contains finite element method analysis for several material models, which are based on extensive analysis of relations used to transfer the information from computed tomography data to material model properties. Subsequently, the realization of experimental measurement is described. The final part of the thesis contains evaluated results obtained from the FEM analysis, which are also compared with the experiment.
86

Tepelně-mechanická analýza hlavy vznětového spalovacího motoru / Thermo-mechanical Analysis of Diesel Internal Combustion Engine Head

Kozák, Ondřej January 2012 (has links)
This thesis deals with analysis of mechanical and thermal load of a diesel engine cylinder head with fatigue life prediction. In the first part common solution options are described. The second part contains stress, deformation and fatigue life prediction computation of the given diesel engine cylinder head.
87

Hnací ústrojí tříválcového zážehového hvězdicového motoru / Powertrain of three-cylinder gasoline radial engine

Košař, Miroslav January 2013 (has links)
The purpose of this thesis is the design of a radial spark-ignition engine in two layout variations, the stress analysis of selected components using the finite element method, the eventual optimization of selected components and the determination of safety on their most strained locations.
88

Biomechanická studie zápěstí horní končetiny / Biomechanical study of the upper limb wrist

Kouřil, Jan January 2013 (has links)
This master´s thesis is focused on biomechanical study of wrist. There is a literature search on this theme in the beginning of this work. The thesis is described in detail anatomy of bones in the wrist. Subsequent the stress-strain analysis of physiological wrist is implemented in a neutral position. The model of geometry of wrist is created on base of CT data. To create calculation model and the solution is implemented in the computer system ANSYS Workbench.
89

Deformačně napěťová analýza femuru s vnitrodřeňovým hřebem a fixačními pásky / Stress and strain analysis of femoral intramedullary nail fixation and tapes

Lamrich, Martin January 2013 (has links)
The presented Master’s Thesis aims at determining stress and strain analysis of femur with fracture fixed by intramedullary nail and cerclage cable. The one of the goals of this work was create computational model which will be able simulate problem. Computational model consist of model of femur , it’s geometry was created on basis of CT data, than there was created model of intramedullary nail and cerclage cable on a basis of real objects. In this work was created simply model of femur with the same material features and characteristic proportions as analyzed model of femur. On this model was investigated direct impact of cerclage cables on deformation, respectively displacement in a surroundings of femoral fracture. On a final model were applied the real loads conditions. Preload in a cerclage cable was simulated by cooling down to a temperature from analytical calculation. Concluding analysis was powered by Finite Element Method (FEM) applied in system ANSYS Workbench 14.5 . Due to a results of analysis, we could say that using cerclage cables in combination with intramedullary nail is an effective way for healing femoral shaft fractures.
90

Konstrukční úprava těhlice osobního vozidla / Design modification of the vehicle upright

Coufal, Jiří January 2013 (has links)
This master´s thesis deals with design modification of specific upright in response to exchange the caliper for non-series one. It focuses on the creation and subsequent adjustment of the 3D model based on obtained size and shape of real upright by using 3D scan. For the editing part is conducted the strength test by using FEM and the results are compared with the values of the original upright.

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