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DC electronic load
Pavloň, Martin ; Kapinus, Tomáš (referee) ; Havlíková, Marie (advisor)
This document deals with description and measuring on the electronic loads, also describes user interface, working modes and electronic protections. Compares technical parameter of individual electronic loads. Discuss differences between resistive and electronic loads. Propose method to verify static and dynamic load. In the last part it deals with measuring on the electronic loads, according to proposed methods and with processing of measure data.
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Modeling of accidental torsion and its effect on spectral analysis
Šulerová, Zdeňka ; Nevařil,, Aleš (referee) ; Vlk, Zbyněk (advisor)
This bachelor thesis deals with the appraisal of concrete frame structures in seismic loadeffects. To calculate the simplified method will be used to support lateral forcesspecified in EN 1998-1:2004 - Design of structures for earthquake resistence. The calculation will be done by manual calculation and the calculation program RFEM. These alternative methods will be calculated loads and torques acting on the structure and subsequently compared. The main part of the bachelor's thesis is to evaluate the effects of the random distribution of mass,prescribed by the standard, and our chosen mass distribution, where we expect the maximum deformation.
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Static and dynamic analysis of Prestressed bridge structure
Hokeš, Filip ; Nečas, Radim (referee) ; Kala, Jiří (advisor)
The main objective of the thesis is to perform static and dynamic analysis of prestressed concrete bridge structures in computational system ANSYS. For the analysis was chosen footbridge over the river Svratka in Brno. In relation to this topic are solved various types of modeling prestress at a finite element level. Before analyzing the footbridge is analyzed in detail the static system and the corresponding final geometry of the structure. Knowledge of the functioning of the static system is used to build the computational model of the structure, on which is subsequently performed static and dynamic analysis.
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Brick Building Reconstruction
Kolářová, Jana ; Bažant,, Zdeněk (referee) ; Šulák, Pavel (advisor)
This bachelor’s thesis is focused on reconstruction of brick apartment houses in terms of static load capacity. The thesis summarizes the requirements and information to evaluate the current state of brick buildings, contains both theoretical and practical calculations to assess the load capacity of masonry elements, and suggests possible measures for structures in unsatisfactory conditions.
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Outdoor Crane Runway of Car Cemetery in Bzenec
Trachtulcová, Šárka ; Sýkora, Karel (referee) ; Pilgr, Milan (advisor)
The content of this bachelor thesis is a design of a steel structure outdoor crane runway for running bridge crane carrying capacity of 32 t. Crane runway is located at car cementery in a town Bzenec. The proposal is made for the crane runway gauge of 22.5 meters and a length of 60 m. Crane track is made from solid columns with 8.0 m height and 12 m spacing, main beams crane runway, truss horizontal reinforcing beam and the reinforcing beam in an inclined plane. Part of the crane runway are also brake bracing and foundations. The basic material is steel strength grade S235.
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Influence of dynamic loading on the contact fatigue characteristics of bearing material
Hložek, Jiří ; Hutař, Pavel (referee) ; Mazal, Pavel (advisor)
This thesis deals with the study of sudden step changes observed in model testing of standard bearing steel 100Cr6. Methodology of experiments with step change of load is proposed and applied in measurements. Three complete series of experiments were conducted, and rating life was determined for each loading trend. Based on the experiments carried out, it was found that the selected steel is able to withstand the sudden step of load changes, despite the fact that it is not material of choise for this type of load. Part of this work was to verify functionality of the innovated test stations AXMAT with modern diagnostics and a new control system, and also of the hydraulic variant of AXMAT, which allows to remotely derive dynamic loading of the test sample.
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Distributed ballistic recovery system design for GA and commuter aircraft
Šima, Dávid ; Jebáček, Ivo (referee) ; Popela, Robert (advisor)
The master's thesis is focused on the design of a ballistic system for a commuter aircraft and can serve as a feasibility study. At the beginning, the significance of the ballistic recovery system is demonstrated through a statistical overview. This is followed by a section that examines the ballistic system itself in terms of its construction, activation, and various associated rules. This is followed by a section on the characteristics and geometry of the parachute, which is essential for the design itself. The most crucial part of the thesis is the procedure for calculating the filling time and dynamic loads. Among the various possible methods, the most suitable calculation methods were verified and selected based on a specific case. Using these validated calculations, the loads on several possible parachutes were subsequently determined. The final part involves verifying the placement concept, for which the wing load at half-span was determined and compared with the dynamic load value of the proposed parachutes.
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Influence of dynamic loading on the contact fatigue characteristics of bearing material
Hložek, Jiří ; Hutař, Pavel (referee) ; Mazal, Pavel (advisor)
This thesis deals with the study of sudden step changes observed in model testing of standard bearing steel 100Cr6. Methodology of experiments with step change of load is proposed and applied in measurements. Three complete series of experiments were conducted, and rating life was determined for each loading trend. Based on the experiments carried out, it was found that the selected steel is able to withstand the sudden step of load changes, despite the fact that it is not material of choise for this type of load. Part of this work was to verify functionality of the innovated test stations AXMAT with modern diagnostics and a new control system, and also of the hydraulic variant of AXMAT, which allows to remotely derive dynamic loading of the test sample.
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Condition monitoring of small ball bearings
Šváb, Štěpán ; Pikula, Stanislav (referee) ; Havránek, Zdeněk (advisor)
The aim of this thesis was to build equipment for testing bearing condition analysis during its life. The theory of bearing parameter and diagnostics methodology for their analysis are discussed. Hardware used for device design and data collection. Finally, the course of measurement and software evaluating the end of the test are discussed.
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Design of Data Acquisition Equipment IMC Fastening System in the Car
Černý, Martin ; Jeník, Radomír (referee) ; Ramík, Pavel (advisor)
Devices for measuring the dynamic load and vibration of certain parts of the bodywork or parts of other parts of the vehicle are made using accelerometers and measuring instruments IMC. It must be simply installed into the interior of the vehicle so that it is not necessary to remove any parts of the interior and to avoid damage to all parts of the interior. The preparation must also withstand the considerable dynamic load generated by the harder operation tests.
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