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Calculation and optimization of synchronous servomotor reluctance torque.
Kroupa, Martin ; Hájek, Vítězslav (referee) ; Ondrůšek, Čestmír (advisor)
This work is mainly focused on construction and design simulation of synchronous servomotor. This motor is built by 30 permanent magnets which are attached to rotor and solved in Ansoft Maxwell 14 software. The main purpose was to calculate reluctance torque, which is significant during the motor operational mode and its optimization. Ansoft Maxwell 14 can analyze in 2D mode as well as in 3D mode, for analysis it uses method of finite elements. Subjects can be analyzed in static conditions, or in any way of transient movement. Optimization in 2D, where we will change the shape in the area of air gap, will only be used as revision that the reluctance torque is bounded with this factor. The main simulations were supposed to be done in 3D model, where the role of rotation should have been taken in account to the final result. These simulations were replaced by alternative calculation. On behalf of achieved results, the optional rotation is stated in the end of my work.
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Suggestion of a workshop lift for garden machines
Kroupa, Martin ; Kašpárek, Jaroslav (referee) ; Hloušek, David (advisor)
This bachelor thesis deals with the design of workshop lifting equipment for garden equipment. The parameters for lifting equipment were set at a load capacity of 100 kg, working table dimensions of 1200x800 mm and minimum working table height of 1200 mm. In the thesis, the static and strength calculation of the mechanism is performed and the drive is calculated, which is realized by means of a motion screw.
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Suggestion of a workshop lift for garden machines
Kroupa, Martin ; Kašpárek, Jaroslav (referee) ; Hloušek, David (advisor)
This bachelor thesis deals with the design of workshop lifting equipment for garden equipment. The parameters for lifting equipment were set at a load capacity of 100 kg, working table dimensions of 1200x800 mm and minimum working table height of 1200 mm. In the thesis, the static and strength calculation of the mechanism is performed and the drive is calculated, which is realized by means of a motion screw.
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Intentional act and ideality of linguistic meaning in Husserl's thought
Kroupa, Martin ; Čapek, Jakub (advisor) ; Švec, Ondřej (referee)
Gottlob Frege made in his famous article "Über Sinn und Bedeutung" an distinction between meaning and referent of an expression. Meaning has an ideal charakter. Referent is than an object of the expression. Later in his study "Der Gedanke" he extended this distincion of the hole sentence. The meanings are in this case understood as thoughts of the senteces. Referent than Frege called as truth value. The question is, how is it possible for human mind to access this region of ideality of meanigs and thoughts. Frege wrote, that we are able to grasp an thought by force of thinking. Few years later Edmund Husserl made in his Logical investigations similar distinction between ideal sense and object of intention. In many ways is it possible to compare both conceptions. But for Husserl "grasping" of ideality is a form of an abstraction from the intentional act. It is not an abstraction in empirical sense, but ideation, where are ideas are "seen" in original intuition. The main topic of this study is is the attempt to analyse Husserl's ideative abstraction in special case of ideal meaning of an expression.
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Frequency Characteristic of the Induction Machine
Kroupa, Martin
The paper focuses on the induction machine as the transfer member and on its behavior in the frequency domain. The linearized mathematical model of induction machine is introduced and the issue of its frequency transmissions is discussed. Finally, the appropriateness of the motor use as diagnostic tool for analysis of time-varying load torque is mentioned.
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Calculation and optimization of synchronous servomotor reluctance torque.
Kroupa, Martin ; Hájek, Vítězslav (referee) ; Ondrůšek, Čestmír (advisor)
This work is mainly focused on construction and design simulation of synchronous servomotor. This motor is built by 30 permanent magnets which are attached to rotor and solved in Ansoft Maxwell 14 software. The main purpose was to calculate reluctance torque, which is significant during the motor operational mode and its optimization. Ansoft Maxwell 14 can analyze in 2D mode as well as in 3D mode, for analysis it uses method of finite elements. Subjects can be analyzed in static conditions, or in any way of transient movement. Optimization in 2D, where we will change the shape in the area of air gap, will only be used as revision that the reluctance torque is bounded with this factor. The main simulations were supposed to be done in 3D model, where the role of rotation should have been taken in account to the final result. These simulations were replaced by alternative calculation. On behalf of achieved results, the optional rotation is stated in the end of my work.
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Cooperation of Integrated rescue system units in road traffic accidents of means of passenger transit
KROUPA, Martin
The diploma thesis deals with problems of collaboration of the Integrated Rescue System at coordination of its units intervention in larger traffic accidents, to be specific in coach traffic accidents with a bigger number of the injured and the dead. In the thesis two significant traffic accidents and cooperation training of the units of the Integrated Rescue System are compared at intervals of last five years. Following the analysis it is possible to monitor not only the increasing level of technical and material equipment of single units, but also the increasing level of coordination of their activities. The main aim of the thesis is evaluation of the current level of collaboration of the units of the Integrated Rescue System in a larger traffic accident, eventually a proposal of possible adjustment or modification of currently already used type activities of the units of the Integrated Rescue System.
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