National Repository of Grey Literature 77 records found  beginprevious20 - 29nextend  jump to record: Search took 0.00 seconds. 
Computational modeling by using the remeshing method in FEM program Abaqus
Zářecký, Tomáš ; Šebek, František (referee) ; Kubík, Petr (advisor)
This thesis is about theoretical basics of finite element method and remeshing methods available in Abaqus. These are adaptive remeshing, mesh-to-mesh solution mapping and ALE adaptive meshing. Selected methods are shown in several exercises. Results are compared to the analytical solution and the solution without use of remeshing methods.
Economic and Financial Measurement and Evaluation of the Company Using the Balanced Scorecard Method
Kubík, Petr ; Pavláková Dočekalová, Marie (referee) ; Kocmanová, Alena (advisor)
This Master´s thesis deals with the design and implementation of the Balanced Scorecard concept in the company. The work was divided into four main sections. In the first part, the reader is acquainted with the main goal of the work, then the methods and procedures of work processing are introduced. The next part focuses on the theoretical basis needed to complete the work, which clarifies the concept of business performance, strategic analysis and focuses on financial analysis, but the greatest emphasis is placed on the Balanced Scorecard method. The third part is practically oriented, first the analyzed company, its history and field of business are introduced, followed by SWOT, PESTLE and financial analysis. The last part, the actual solutions are based on the information obtained and represents the implementation of the Balanced Scorecard concept in the company in order to increase its performance.
Application of DIC method in residual stress measurement using hole drilling method
Kováříková, Sabina ; Kubík, Petr (referee) ; Návrat, Tomáš (advisor)
This thesis deals with measurement of residual stress by hole drilling method. This method is based on drilling a hole and measurement of deformation in the area around this hole. Measured deformations are then converted to residual stresses by using calibration coefficients. The deformation around the drilled hole is measured by optical non contact method called digital image correlation (DIC). First part of the thesis is focused on current state of research. The thesis contains evaluation of residual stresses by using different methods and evaluation of used methods.
Influence of process parameters in forward extrusion on the initiation of chevron cracks in material
Musil, Zbyněk ; Kubík, Petr (referee) ; Petruška, Jindřich (advisor)
This Master’s thesis deals with the influence of process parameters in forward extrusion on the initiation of chevron cracks in material by numerical simulation. Solution was executed by ANSYS 11 and the influence of fiction, angle of reduction, reduction and numbers of extrusion operations was solved for the 12 050.3 steel by the chosen conditions.
Comparison of methods for solving the deformation characteristics of beam
Podsedník, Karel ; Kubík, Petr (referee) ; Damborský, Petr (advisor)
The aim of this bachelor thesis is survey, research and practical application of methods determining the deformation characteristics of the beam center. Differential equations of flexural line, Castigliano's theorem and the finite element Metod will be used for solving deformations in linear mechanics of material. The results of analytical solution were verified by numerical calculation in program ANSYS.
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.
Design of the structural modifications for mitigating the consequences of the car frontal crash into the rigid barrier
Hošek, Štěpán ; Kubík, Petr (referee) ; Šebek, František (advisor)
There are many collisions on the roads every day. Automotive companies do number of different types of crash-tests to reduce the consequences of these collisions. Crash-tests are supposed to uncover problems of tested vehicles. Then it is possible to propose constructional changes to reduce the consequences of different types of collisions. Indipendent organisations then test productional vehicles according to their standarts and evaluate safety of these vehicles. One of these crash-tests is the small overlap test which is being done by Insurance Institute for Highway Safety. The small overlap test will be the subject of this thesis. Computational modelling of small overlap test is realised for basic variant and for variants with changes. There is also comparison of basic variant and variants with changes.
The use of mass scaling within Abaqus explicit code
Hacek, Samuel ; Kubík, Petr (referee) ; Šebek, František (advisor)
The purpose of this bachelor’s thesis is to evaluate the usability of the mass scaling function in Abaqus computing environment. The introductory part starts with a description of the explicit formulation of the finite element method, which is followed by a definition of various mass scaling methods and a description of their usability. The practical part of the thesis consists of a few problems solved using aforementioned mass scaling techniques. The course of the solution is focused on the determination of the extent of the influence that the use of various mass scaling techniques has on the obtained data. The last part of the thesis is devoted to evaluation of the applicability of various mass scaling techniques in different situations, considering possible reduction of computing time as well as the reliability of the obtained data.
Parametric study of the absorption element of the frontal vehicle part from the passangers safety point of view during the frontal car collision
Stráník, Radim ; Kubík, Petr (referee) ; Vrbka, Jan (advisor)
The main subject of this master thesis is the computational modeling of stress-strain analysis of the loaded front part of Toyota Yaris from the year 2010 using an explicit finite element method (FEM). The aim of this thesis is the assessment of resistance of the front part of the car (longeron) at the impact stress. This thesis describes the selection, editing, and creation of the computational model of longeron and simulation of the barrier collision. The objective of the thesis is to use a real vehicle, suggest modified longerons to be implemented in it, test various shape and material versions of the longeron and make their comparison.
Empirical relationships for the assessment of the small punch test
Venský, Jiří ; Kubík, Petr (referee) ; Šebek, František (advisor)
This thesis aims at describing the small punch test, considering its limitations and its applications. Research of empirical equations, by which the value of yield stress and ultimate tensile stress is determined, was carried out. Furthermore, four calculation models were introduced. These models served to establish the yield stress of two materials using analytical solution based on Kirchhoff´s theory of plates. Calculated values of the yield stress were compared to the values obtained by the normalized tensile test. Calculated values were compared to the values of yield stress from the empirical equations found in literature as well. Yield stress values obtained by empirical relations were more accurate than those obtained from analytical solutions stated in this thesis.

National Repository of Grey Literature : 77 records found   beginprevious20 - 29nextend  jump to record:
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8 Kubík, Pavel
3 Kubík, Peter
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