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Multi-Body Computational Modeling of Transmission Dynamics
Líčeník, Adam ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
This diploma thesis is focused on compiling a computational model of the transmission of a Zetor Forterra HSX tractor in the Multibody software MSC ADAMS environment. It analyses the issue of creating gears in terms of vibration and noise. The thesis describes the creation of computational model which is used for simulation of the load conditions during tractor operation. The methodology is applied to a single-stage gearbox in which is verified. Then it is used on a model of a real tractor gearbox. The response of the input load conditions is projected during the forces in the engagement of the gears which are transmitted to the bearings.
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Design of gearbox for wind power plant
Zavadil, Roman ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
The main goal of this diploma thesis is the design of a gearbox for a wind power plant. The introductory part contains a set of knowledge about wind turbine gearboxes and introduces the reader to the issue in terms of the distribution of gearboxes, gears used, recommended bearings and in terms of wind turbine generators. The design itself begins with determining the input parameters of the transmission based on a simplified aerodynamic model of the wind turbine rotor. Further, using these parameters, a device arrangement consisting of two planetary gears and one permanent gear. The entire transmission is examined in terms of kinematics, and in both planetary gears, the kinematic examination is performed using the Willis method. Then, the helical gearing is designed and its normal modulus, geometry, forces are calculated and lastly the strength calculation of the gearing is performed. Then the durability of the bearings is calculated based on a force analysis and the patented flexible pin construction is checked regarding its bending and deflection. The housing of the entire device is constructed regarding the smallest possible installation space in the control room. The final part of the work is devoted to the strength control of the bolts at the first ring gear using the finite element method and modal analysis of the entire gearbox also using the FEM.
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Car Front Axle Driveline Gearbox
Černuško, Lukáš ; Černý, Jiří (referee) ; Kaplan, Zdeněk (advisor)
Goal of the Master Thesis was to design conception of electric vehicle driveline, which is able of torque vectoring between each wheel independently and to design front axle gearbox. The aim was to use up the car on race track and to test dynamic properties of electric vehicle for follow-up development. Due to determined requirements and possible solutions the conception of driveline was designed and basic parameters were defined. The main part of the thesis contains a design of gearbox including strength calculation of gearing, the control of shafts to fatigue and elasticity limiting states, life of selected bearings. Gearbox case was subjected to FEM analysis. The last chapter uses simulation to gain vehicle acceleration. Designed electric driveline is applicable to other sport vehicles after some modifications.
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Characteristic of vehicle’s differential
Málek, Tomáš ; Kupčák, Radim (referee) ; Ohnišťová, Petra (advisor)
This bachelor thesis deals with characteristic of various types of differentials in motor vehicles. It represents their functions, various designs and comparisons. It also includes all wheel drive chapter. The main part is the technology of gear production which involves 3D print. There is model of differential, which was created in Solid Works 2016 specifically for this thesis. It is also printed on 3D printer and the printout is compared with a real model of differential.
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Screw conveyor
Kaňa, Vojtěch ; Pokorný, Přemysl (referee) ; Jonák, Martin (advisor)
This bachelor thesis deals with proposal tilted screw conveyor in term of calculation and construction solution of tilted screw conveyor for sludge transportation in waste water treatment plant. There is a calculation of the basic parameters, proposal of gearing, proposal of bearings and strength calculation of the main parts. In the attachment we can see drawing documentation.
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Faktory ovlivňující jízdní dosah elektromobilu
KAŠPAR, Roman
This bachelor thesis deals with the topic Factors influencing the driving range of electric cars. The work will be divided into two parts, the first part will deal with the history of electric cars and the basic ideas of electromobility. Furthermore, to gain practical experience with driving a vehicle and to determine the negative as well as positive factors affecting the driving range of the electric car. The beginning of the work is devoted to the history of electric cars and the basic ideas of electromobility. The next part of the work deals with the issue of electric vehicle drive, battery design and charging. At the end of the work, the factors affecting the driving range and the results of the practical driving test are discussed.
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Design of gearbox for wind power plant
Zavadil, Roman ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
The main goal of this diploma thesis is the design of a gearbox for a wind power plant. The introductory part contains a set of knowledge about wind turbine gearboxes and introduces the reader to the issue in terms of the distribution of gearboxes, gears used, recommended bearings and in terms of wind turbine generators. The design itself begins with determining the input parameters of the transmission based on a simplified aerodynamic model of the wind turbine rotor. Further, using these parameters, a device arrangement consisting of two planetary gears and one permanent gear. The entire transmission is examined in terms of kinematics, and in both planetary gears, the kinematic examination is performed using the Willis method. Then, the helical gearing is designed and its normal modulus, geometry, forces are calculated and lastly the strength calculation of the gearing is performed. Then the durability of the bearings is calculated based on a force analysis and the patented flexible pin construction is checked regarding its bending and deflection. The housing of the entire device is constructed regarding the smallest possible installation space in the control room. The final part of the work is devoted to the strength control of the bolts at the first ring gear using the finite element method and modal analysis of the entire gearbox also using the FEM.
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Multi-Body Computational Modeling of Transmission Dynamics
Líčeník, Adam ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
This diploma thesis is focused on compiling a computational model of the transmission of a Zetor Forterra HSX tractor in the Multibody software MSC ADAMS environment. It analyses the issue of creating gears in terms of vibration and noise. The thesis describes the creation of computational model which is used for simulation of the load conditions during tractor operation. The methodology is applied to a single-stage gearbox in which is verified. Then it is used on a model of a real tractor gearbox. The response of the input load conditions is projected during the forces in the engagement of the gears which are transmitted to the bearings.
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Characteristic of vehicle’s differential
Málek, Tomáš ; Kupčák, Radim (referee) ; Ohnišťová, Petra (advisor)
This bachelor thesis deals with characteristic of various types of differentials in motor vehicles. It represents their functions, various designs and comparisons. It also includes all wheel drive chapter. The main part is the technology of gear production which involves 3D print. There is model of differential, which was created in Solid Works 2016 specifically for this thesis. It is also printed on 3D printer and the printout is compared with a real model of differential.
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Gear failures
Paška, Josef ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This bachelor thesis is focused on gears. The first part of the thesis informs about the sorting of each type of gears. In the second part, there is a detailed overview of possible gears failures, including their causes, manifestation and their potential solutions for correction. The last part of the thesis handles technical experiment, which aims to performance of vibrodiagnostic of the gear system, tested on the test state. Measured data were subsequently processed by commercially accessible software, where the vibrations of transmission were recorded – firstly at the beginning of measuring when the gears were without damage and afterwards at the end of testing, when the state of damaged teeth was detected.
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