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Stewart platform – model
Těšický, Lukáš ; Vetiška, Jan (referee) ; Březina, Lukáš (advisor)
The bachelor thesis deals with the creation of a multi-body mechatronic model of a Stewart platform in MSC Adams. There are also analyzed possibilities of utilization of the Stewart platform and other parallel manipulators in the industry.
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Virtual twin and predictive maintenance
Kotrba, Martin ; Holub, Michal (referee) ; Tůma, Jiří (advisor)
This diploma thesis deals with the design of a virtual twin of cross table MCV 754 QUICK from the Czech manufacturer Kovosvit MAS. The research part describes the basic principles of predictive maintenance methodology and virtual twin technology. The practical part includes a simplification of the initial cross table model. This model was then transferred to the simulation software MSC Adams, where it was optimized so that its behavior corresponds as closely as possible to the physical device. Several simulations were subsequently performed on the model. Then a concept for a predictive method for calculating the remaining service life of individual sections of the ball screw was presented. Simulations performed on a virtual twin served as a source of data to test the proposed method.
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Simulation of CNC machine tool spindle in ADAMS software
Pham, Jakub ; Holub, Michal (referee) ; Tůma, Jiří (advisor)
The bachelor thesis deals with the design of a simulation model of a CNC machine tool in MSC ADAMS software. Nowadays, simulations have become an integral part of every development process, as they offer a cost-effective alternative to classical machine development involving prototyping. Within machine tools, dynamic simulation of machine nodes is one of the unexplored areas. The aim of this work is to verify their functionality and reliability in this area. Within the scope of the bachelor thesis, a research on dynamic system simulations, the finite element method and the simulation software MSC Adams and Ansys has been carried out. In the practical part, the spindle loading of the MCV 754 Quick machine tool was designed. Subsequently, the model geometry and boundary conditions were determined and the spindle was simulated during the cutting process in MSC ADAMS. The simulation results were verified by both analytical calculation and experimental measurements on the machine. Furthermore, the concept of further development of the model within the framework of cosimulation was presented. Finally, all output parameters were compared and evaluated.
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Analyses of Mechanical Tasks in ADAMS
Rybár, Šimon ; Švancara, Pavel (referee) ; Hadaš, Zdeněk (advisor)
The aim of this thesis was to create parametric models of technical systems in Adams software. The simulations were made to analyze the systems from kinematic and dynamic point of view. In some cases, the simulation results were compared with the results obtained by the analytic method. The thesis is divided into three chapters. The first defines the area and aims of the thesis. The second one defines multibody system and closely presents the software and its features. The third chapter contains five different examples which demonstrate the abilities of Adams. In the conclusion, own information, overall rating and educational recommendations are summarized.
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Simulation and modeling of free body dynamic inside sea drifter
Moravec, Jakub ; Věchet, Stanislav (referee) ; Hadaš, Zdeněk (advisor)
This thesis deals with the development of a simulation model of an energy harvester based on the electromagnetic resonator principle. The introduction focuses on a search of the devices created so far for the conversion of kinetic energy of the sea into electrical energy. Furthermore, a model of the resonator design tuned to a frequency of 1.6 Hz is created in the body dynamics program MSC Adams. Simulations are performed in this program to analyze the resonator properties. Finally, the model is tested by real sea excitation. From these simulations, the electrical power obtained by this device is then predicted. Under regular sea excitation, the harvester power reached instantaneous peak values of 5 W and in case of irregular sea excitation the peak power values reached up to 16 mW.
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Active Preload Control of Machine Tool Head
Cyprian, Rudolf ; Marek, Jiří (referee) ; Březina, Tomáš (advisor)
This Master’s Thesis introducing active preload control of machine tool head supported by a company TOSHULIN, a.s. It presents a way of creating models from rigid body models to flexible bodies and finally to multi-body systems with control loop. The goal of this thesis is create active preload control using a piezo-stack system for simplified linear model of ma-chine tool head.
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Influence of three-point hitch parameters on traction properties of tractors
Voburka, Tomáš ; Škopán, Miroslav (referee) ; Bauer, František (advisor)
The diploma thesis is focused on the development of a mathematical model of the tractor-tool set in the MSC Adams program enabling analysis of the influence of the position of the upper linkage of the three-point hitch on the load of the driving wheels during the system operation. The measured force effects are analysed with focus on the adhesion load of the drive wheels and the traction properties of the tractor. Based on the calculations made, it determines the optimal setting of the upper link of the hitch for the connected tool.
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Driving Dynamics of ATV vehicle 6x6
Juhász, Vojtěch ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This thesis focuses on the analysis of the driving dynamics and suspension of six-axle ATVs, which are increasingly used by armies for transporting cargo and assisting troops in various combat situations. Due to the unique design of the three-axle, equal wheelbase chassis, the vehicle's suspension behavior presents a significant challenge. The objective of this work is to build a multibody vehicle model using MSC Adams software, analyze the vehicle's handling characteristics in rough terrain and other driving maneuvers, and optimize the suspension and damping characteristics of each axle to improve the vehicle's handling characteristics. The results of this work will provide useful information for the design and development of more efficient and safer solutions for military and civilian applications.
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