Engineering; Mechanical Design; Materials Selection in Mechanical Design
7
Scopus Publications
Scopus Publications
USE OF SW TOOL TO SUPPORT TEACHING TECHNICAL SUBJECTS MARTIN KRATOCHVIL, , IVANA MAZINOVA, TOMAS KALINA, FILIP HRDLICKA, , , and Mm Science Journal, 2022 Software tool for beam design was invented for educational purposes. SW Tool is based on standard formulas enhanced by Ashby’s theory. It is therefore a SW tool for structural design of profiles, considering its stability and enabling shape optimization for the most efficient use of the material. SW Tool is specialized to help the students evaluate suitable profile quickly and easily. This article deals with a software tool that is used for educational purposes and was tested in practice as a part of a university subject. The goal was to verify on several assignments, whether students are able to use this new software tool, and collect data about their approach and results. All the data were compared and evaluated. The evaluation showed that the software tool is user-friendly and students can use them immediately without any problems.
Sw tools for structural design of profiles, considering its stability Tomas Kalina, Martin Kratochvil, Filip Hrdlicka, Ivana Mazinova Mm Science Journal, 2021 When designing lattice structures, or even structures in general, standard profiles are often used. These are profiles of I, U, T, L, SHS, RHS, CHS, EHS shapes, etc. All the basic formulas for stiffness and strength calculations are known for standard used profile shapes. However, in established practice there are no approaches for simply optimization or for evaluating the stability of profiles. This paper deals with a detailed analysis of two SW tools for structural design of profiles, considering its stability and enabling shape optimization for the most efficient use of the material. Both previously mentioned tools are based on the theory of prof. Ashby but each of them is handled in a slightly different way. The first tool works with purely analytical formulas and enables profile evaluation and manual optimization. The second tool is based on analytical formulas, but uses numerical solvers and allows full profile optimization.
Use of material-shape factors in mechanical design Filip Hrdlicka, Martin Kratochvil, Ivana Mazinova, Pavel Florian Manufacturing Technology, 2019 During design process materials and their shapes selection is usually performed unsystematically, selection is mostly based on previous experience, although this is the most influencing part during mechanical design. This paper is devoted to the application of the material-shape factors and indexes to the standard bicycle frame. Paper to show the method with material-shape factors and indexes and how to use it for a simply and fast redesign for a different material and shapes. The whole method is descripted in detail for two examples and the results are veri-fied by FEM analysis.
Materials selection for efficient cross-section of components Experimental Stress Analysis 56th International Scientific Conference Ean 2018 Conference Proceedings, 2018
FEM-aided material selection and derivation of material indices Martin Kratochvíl, Pavel Florian, Ivana Mazínová, Filip Hrdlička Materials Science Forum, 2018 This paper is devoted to the derivation of material indices using the finite element method. Material indices take into account material properties such a Young’s modulus and density are a powerful tool for material selection for various applications since they allow a quick comparison of suitability of different materials. Until now material indices were developed analytically for rather simple textbook-like examples. However, by implementing the finite element method and data fitting tools material indices can be developed for more complicated problems where the analytical solution cannot be obtained. The current paper describes derivation of material indices using ANSYS software. It is used as a simulator of a physical phenomenon. The simulation generates output data which is used to derive the material index.
