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Qualitative study of beam finite elements
Martinásková, Magdalena ; Němec,, Ivan (referee) ; Nevařil, Aleš (advisor)
The issues were selected that have been expected to induce complications in modelling or calculations. These were solved in commercial softare RFEM, Scia, Axis and ANSYS using the FEM. The problems include geometric nonlinearities or address buckling or torsion. The basic theory and the software solutions are presented. For each task there are stated the parameters of calculation for individual programs, in more complex cases the way of assembling the model and solution steps are also described. The results obtained are compared to theoretical analytically obtained solution.
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Performance comparison of methods for design of experiments for analysis of tasks involving random variables
Martinásková, Magdalena ; Novák, Drahomír (referee) ; Vořechovský, Miroslav (advisor)
The thesis presents methods and criteria for creation and optimization of design of computer experiments. Using the core of a program Freet the optimized designs were created by combination of these methods and criteria. Then, the suitability of the designs for statistical analysis of the tasks vith input random variables was assessed by comparison of the obtained results of six selected functions and the exact (analytically obtained) solutions. Basic theory, definitions of the evaluated functions, description of the setting of optimization and the discussion of the obtained results, including recommendations related to identified weaknesses of certain designs, are presented. The thesis also contains a description of an application that was created to display the results.
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Qualitative study of beam finite elements
Martinásková, Magdalena ; Němec,, Ivan (referee) ; Nevařil, Aleš (advisor)
The issues were selected that have been expected to induce complications in modelling or calculations. These were solved in commercial softare RFEM, Scia, Axis and ANSYS using the FEM. The problems include geometric nonlinearities or address buckling or torsion. The basic theory and the software solutions are presented. For each task there are stated the parameters of calculation for individual programs, in more complex cases the way of assembling the model and solution steps are also described. The results obtained are compared to theoretical analytically obtained solution.
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Performance comparison of methods for design of experiments for analysis of tasks involving random variables
Martinásková, Magdalena ; Novák, Drahomír (referee) ; Vořechovský, Miroslav (advisor)
The thesis presents methods and criteria for creation and optimization of design of computer experiments. Using the core of a program Freet the optimized designs were created by combination of these methods and criteria. Then, the suitability of the designs for statistical analysis of the tasks vith input random variables was assessed by comparison of the obtained results of six selected functions and the exact (analytically obtained) solutions. Basic theory, definitions of the evaluated functions, description of the setting of optimization and the discussion of the obtained results, including recommendations related to identified weaknesses of certain designs, are presented. The thesis also contains a description of an application that was created to display the results.
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