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Material nonlinear solution of beam structures
Kabeláč, Jaromír ; Krejsa,, Martin (referee) ; Návrat,, Tomáš (referee) ; Němec, Ivan (advisor)
The dissertation deals with solution of beam and frame structure considering material nonlinearity. The finite elements method (FEM) was used as calculation method. The objective of the dissertation was to develop and test finite beam element considering material nonlinearity. A detailed analysis of the problem provided a group of formulations of beam element. Part of the dissertation´s results has been, in several forms, implemented in commercial software. Beam element focused on solution of stress over solid cross sections is introduced in the theoretical part. In terms of topology it is a classical prismatic beam element with two nodes. Six degrees of freedom for translations and rotations are defined in each node plus 7-th degree of freedom for warping function from torsion. Load form axial force, bending moments, primary torsion, shear forces and eventually bimoment for secondary torsion were considered in cross section. Several variants of formulations were created according to inclusion of loading components into material nonlinearity and according to numeric integration method. Inclusion of geometric nonlinearity and fire resistance calculation are discussed in the dissertation. The above mentioned formulations were tested on prototypes as described in the application part which also provides information on the general procedure, architecture and technologies used for implementation of knowledge from the theoretical part into commercial FEM software. The dissertation shows implementation of plasticity for shell, solutions of cross section characteristics and stress on cross section, implementation of beam element with material nonlinearity and module for fire resistance of column. The above mentioned implementations of theoretical conclusions are the main outputs of the dissertation. These implementations are available in thousands of installations throughout Europe where being used at projection of significant constructions.
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Utilization of Project Management Tools for Management of Marketing Activities
Sedlařík, Peter ; Němec, Zbyšek (referee) ; Smolíková, Lenka (advisor)
This diploma thesis deals with a type of a project management of marketing activities in a company, where agile methods are used for development of its software product. The theoretical part describes specifications of traditional and agile methods, their comparison, a profound description of the Scrum method and the use of agile methods for marketing activities. In the following part, there is issued an analysis of the current situation in the company oriented to marketing department and possible solutions of discovered problems are suggested there.
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Utilization of Agile Scrum and Usage of Support Software Tools
Tošner, Jiří ; Doskočil, Radek (referee) ; Smolíková, Lenka (advisor)
Agile software development methodologies are very popular for their efficiency and flexibility. This thesis focuses on agile software development methodology called Scrum. Basic description and comparison of traditional and agile methodologies is mentioned at first. Attention is paid to methodology Scrum which is shown on an example of usage by a specific company. It is convenient to use some software tool for organization of Scrum methodology. Therefore, an overview of the most common tools and basic comparison of software tools for organizing this methodology is presented. Conclusion of this thesis is recommendation for improvements for the investigated team, based on issues which were identified.
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Implementation of Selected Agile Methodology of Software Development Project Management
Křížová, Sabina ; Smolíková, Lenka (referee) ; Doskočil, Radek (advisor)
The Bachelor thesis deals with the introduction of a selected agile methodology in project management, more specifically the development of software for weapons simulators. The aim of this work is the introduction of selected agile methodology in the management of the software development project and its subsequent design on a fictitious project of Saab Czech, s.r.o. The theoretical part is devoted to describing the methods used and comparing them. Separate methods will be described in more detail. The next part will be an analysis of the current state of society using the traditional approach. The starting point for the design of the project itself is an analysis of the current state of development of software and industry development. The aim of the solution is to develop a project proposal that will have a selected agile management in place and thus will be successfully achieve the stated objectives of the Bachalor thesis.
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Agile Modelling in Software Development
Ruprecht, Marek ; Rychlý, Marek (referee) ; Zendulka, Jaroslav (advisor)
The thesis is focused on software development process and its products from initial designs through the way of implementation until final delivery to customer. The thesis brings up some basic facts about software engineering with further detailed description of one of its parts, the modern models of software life cycles with focus on the agile life cycle because of its significant benefits and effective implementation. This model is represented by Agile Model Driven Development which has been submitted not only theoretically but in practice. Finally, there is also a short description of Unified Modeling Language which is used as a modeling language.
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Performace and Stress Testing Tool
Javorský, Daniel ; Veselý, Vladimír (referee) ; Ščuglík, František (advisor)
This thesis is concerned about performance and stress testing of Xtend product developed by Xura, Inc. Software development knowledge, theoretical knowledge of testing and testing tools are described in opening chapters together with key features and services provided by Xtend. Emphasis was put on implementation of performance and stress testing tool, which focuses on short-term and long-term testing scenarios and output of this tool serves Xtend developers. Part of this thesis also focuses on results of stress and performance tests.
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Calculation program for heat exchanger design
Švec, Dalibor ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
The diploma thesis is focused on creating a calculation software for designing heat exchanger. The software will not calculate one single heat exchanger but will recommend all heat exchangers which meet the requirements. Then, user can decide which heat exchanger is best suited for the specific application and make a comprehensive calculation. Part of the diploma thesis is to verify correctness of the software and make a parametric studies. Parametric studies will be focused on baffle cut, baffle spacing, tube pitch, and tube thickness and its effect on heat transfer and pressure drop.
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Refaktoring in Software Development
Dilík, Ján ; Bartík, Vladimír (referee) ; Kreslíková, Jitka (advisor)
This paper deals with the subject of refactoring usage in the development of object-oriented applications. It outlines the refactoring theory and the properties that influence the software project development. Prior to refactorization, the system has to be covered with tests. The actual refactoring can be applied during the development process as bug fixing, code review or the refactoring of the whole system. Presented in this work are the impacts of refactorization of OKsystem's company OKbase product and the evaluation with respect to the refactoring concepts of object-oriented applications.
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Development of structural analysis software
Michálková, Anežka ; Buzík, Jiří (referee) ; Létal, Tomáš (advisor)
This bachelor thesis deals with a development of software for strength analysis of truss and beam elements using the Finite Element Method. Firstly, this thesis introduces basic theory of this method which is necessary for development of the software. Next part of the thesis discusses the software itself. Essential feature of development of the software was to transform mathematical theory to uncomplicated algorithms which are explained in the thesis. Last part is dedicated to comparison of the strength analysis results gained from the developed software and from ANSYS Workbench.
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Illustrative Example of Model-Based Design for Complex Aircraft Systems
Sopoušek, Radek ; Kovář, Jiří (referee) ; Janák, Luděk (advisor)
This bachelor's thesis is on the development of aviation systems, in particular their software, using model-based design (MBD) methods while maintaining recommended practices developed by the aviation industry and certification authorities (in particular RTCA DO-178C/331). The general MBD deployment options given by current aviation regulators and standards are described in the theoretical part of the work. Furthermore, this work describes what the process of developing software for a sub-segment of an aircraft system (altitude hold mode of autopilot software) could look like using the model-based design method. The overlap to the system development level (SAE ARP 4754A) is also partially addressed. The work includes an illustrative example in which system requirements were specified, software development through "Design model" and ensuring traceability between system requirements and model design.
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