|
|
Approaches for Modeling the Exact Shape of the Gears
Capoušek, Josef ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
The topic of the bachelor's thesis is the modelling an accurate tooth shape profile, with the goal to create parametric model of the chosen type of gear. In the introduction part the basic terms and classification of the gears are summarized. The following is the overview of the methods of construction an accurate tooth shape profile including examples in the form of planar involute, spherical involute and octoid profile. In the last section the methods of the modelling bevel gear, and creation of the model gear manufactured by Cyclo-Palloid method are described.
|
|
|
Production of bevel gears.
Nepauer, Jan ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
helor thesis and describing the distribution of production technologies bevel gear machining and forming methods. These methods are detailed below. In this paper we theoretically describe the tool against the workpiece. Evaluation of different methods and comparing them against the costs, depending on the capabilities of each individual company.
|
|
| |
|
|
Determination of transmission error at bevel gear
Fraňová, Zuzana ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This master’s thesis deals with the determination of the transmission error in spiral bevel gears and its minimization using tooth profile modification in order to reduce vibrations and noise of transmission systems. Gears are the primary source of vibrations transmitted through the shaft and bearings to the gearbox housing and adjacent surfaces that emit noise into the surrounding space. In order to increase the level of comfort and due to the legislative requirements, increasing emphasis is being placed on reducing the noise and vibrations of machine components, including transmission systems. This leads to the need to identify noise sources and evaluate them in terms of expected acoustic performance. The quality of the gear meshing can be judged by transmission error that is closely related to the noise and vibrations. To evaluate the quality of gears based on transmission error, experimental measurements are used that are costly and require quality equipment. Therefore, it is efficient to determine the expected transmission error already at the design stage using numerical methods. In this work a parametric model of bevel gear geometry and a numerical model for the simulation of gear meshing using FEM software Ansys Mechanical are created in order to determine the transmission error. Based on the transmission error, various load cases and gear modifications designed for transmission error reduction are compared.
|
|
|
Press LKDS 630
Humpolíček, František ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
Final thesis on the design of the drive of a cutting mechanical two-point crank press with a nominal force of 6300 kN. After the theoretical definition of the area of mechanical crank presses and their drives at the beginning of the work, the actual design solution follows. The main idea of the design is the drive arrangement with the concurrent axis of the clutch shaft. The supplied torque is distributed on two longitudinally mounted drive units via a two-sided bevel gear. Solution of the construction design is aimed at enabling workspace variability while simultaneously unifying the maximum number of drive components. Drawing documentation of selected components and assemblies is the part of the thesis.
|
|
|
Approaches for Modeling the Exact Shape of the Gears
Capoušek, Josef ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
The topic of the bachelor's thesis is the modelling an accurate tooth shape profile, with the goal to create parametric model of the chosen type of gear. In the introduction part the basic terms and classification of the gears are summarized. The following is the overview of the methods of construction an accurate tooth shape profile including examples in the form of planar involute, spherical involute and octoid profile. In the last section the methods of the modelling bevel gear, and creation of the model gear manufactured by Cyclo-Palloid method are described.
|
|
|
Determination of transmission error at bevel gear
Fraňová, Zuzana ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This master’s thesis deals with the determination of the transmission error in spiral bevel gears and its minimization using tooth profile modification in order to reduce vibrations and noise of transmission systems. Gears are the primary source of vibrations transmitted through the shaft and bearings to the gearbox housing and adjacent surfaces that emit noise into the surrounding space. In order to increase the level of comfort and due to the legislative requirements, increasing emphasis is being placed on reducing the noise and vibrations of machine components, including transmission systems. This leads to the need to identify noise sources and evaluate them in terms of expected acoustic performance. The quality of the gear meshing can be judged by transmission error that is closely related to the noise and vibrations. To evaluate the quality of gears based on transmission error, experimental measurements are used that are costly and require quality equipment. Therefore, it is efficient to determine the expected transmission error already at the design stage using numerical methods. In this work a parametric model of bevel gear geometry and a numerical model for the simulation of gear meshing using FEM software Ansys Mechanical are created in order to determine the transmission error. Based on the transmission error, various load cases and gear modifications designed for transmission error reduction are compared.
|
|
|
Press LKDS 630
Humpolíček, František ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
Final thesis on the design of the drive of a cutting mechanical two-point crank press with a nominal force of 6300 kN. After the theoretical definition of the area of mechanical crank presses and their drives at the beginning of the work, the actual design solution follows. The main idea of the design is the drive arrangement with the concurrent axis of the clutch shaft. The supplied torque is distributed on two longitudinally mounted drive units via a two-sided bevel gear. Solution of the construction design is aimed at enabling workspace variability while simultaneously unifying the maximum number of drive components. Drawing documentation of selected components and assemblies is the part of the thesis.
|
|
|
Production of bevel gears.
Nepauer, Jan ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
helor thesis and describing the distribution of production technologies bevel gear machining and forming methods. These methods are detailed below. In this paper we theoretically describe the tool against the workpiece. Evaluation of different methods and comparing them against the costs, depending on the capabilities of each individual company.
|
|
| |
guest ::
