|
|
Measuring system for analysis of pressure relations in spray lubrication device
Popelka, Michal ; Vaverka, Michal (referee) ; Nevrlý, Josef (advisor)
This thesis deals with the selection and design layout of the measuring system for the analysis of pressure and flow conditions in the lubricating system and a particular pressure and flow sensors. Sensors were selected according to suitability for use in these conditions of measurements (pressure, flow, etc.). Work also includes the review and selection of data bus for converting the output signal from the sensor to the evaluation unit (computer). It also includes selection of the measurement software to analyze the values arriving from the sensors into the measurement computer, find the optimal conditions for lubrication of wheel flanges of rolling stock.
|
|
|
Overview of rapid prototyping technology for metallic parts
Žaba, Tomáš ; Nevrlý, Josef (referee) ; Paloušek, David (advisor)
The aim of this bachelor paper is to make a survey of Rapid Prototyping methods which enable workability of metal materials. It explains the principles of older methods as well as the latest ones including Selective Laser Sintering, Direct Metal Laser Sintering, and Laser Engineered Net Shaping, Direct Metal Deposition and Electron Beam Melting. The paper presents the examples of practical applications on component parts. The latest equipment and machinery available on present market and their technical specification are listed at the end of the description of individual methods. The paper is completed with visual documentation. The final part of the paper contains the analysis of gained pieces of knowledge and future possible development is outlined.
|
|
|
Elements of experimental equipment for research energy recovery of vehicles
Vašíček, Jakub ; Jurík, Miroslav (referee) ; Nevrlý, Josef (advisor)
Bachelor thesis is focused on selection of hydraulic components for experimental device – stand for research on hydrostatic recovery of kinetic energy of heavy vehicles for civil engineering, public transportation or utility. Main supplier of hydraulic components is – Bosch Rexroth. Thesis primary pays attention to selection and comparation of hydraulic components, it does not deal witch construction or mathematical model. Part of this thesis is concerned with future development in the field of hydrostatic recovery of energy. Main purpose of experimental stand is simulation of operational conditions of heavy vehicles, to gather information about efectivity of energy recovery and to help in making suggestions in construct solution for chosen conditions. Concrete output is analysis of suitability and construct solution for road roller AMMANN AP 240 H.
|
|
|
Structure and Use of the Measuring System for Research of Lubrication Device
Brhlík, Rostislav ; Omasta, Milan (referee) ; Nevrlý, Josef (advisor)
This work deals with an adaptation of the measuring system for the functional analysis of the lubricant divider. Within the new structural design, there were used manometers, flowmeters and dynamic scales to determine the properties of the lubrication system; data acquisition card and the appropriate software were designed too. The methodology of data measuring and analysis were also elaborated. The methodology is based on the experience from measuring, which was realized with the lubrication system OK - 02 from Tribotec Company. Finally, the cascade lubricant dividing system was designed. This is a newly designed flow divider with an innovative internal layout. The aim of the proposed measurement system is an optimization that will lead to effective dividing of lubricating mixture and applying the necessary amount of lubricant to wheel flange.
|
|
|
Mixed-flow submersible water pump driven by hydrostatic motor
Para, Marcel ; Ranuša, Matúš (referee) ; Nevrlý, Josef (advisor)
Bachelor thesis solves the problem of a submersible, diagonal hydrostatic pump. This study describes the basic principles of hydraulics and equipment. The possibility of engaging the hydrostatic system as an amphibious vehicle is investigated in the Bachelor thesis. The work is written in cooperation with the sponsor of HYDRAULIC RESEARCH CENTRE, spol. S.r.o., which is part of SPL Holding., Inc.
|
|
|
Vibration damper development and innovation of a laboratory stand
Filipi, Jaroslav ; Mazůrek, Ivan (referee) ; Nevrlý, Josef (advisor)
Bachelor work deals with description and functionality of vibration dampers. Since the vibration dampers is a wealth of species, work is focusing on the dampers used in cars known as shock absorbers suspension. I have described conventional shock absorbers suspension and modern shock absorbers suspension. Furthermore, I described active chassis. High-quality equipment is very important for the future development of dampers. I propose possible ways of innovation existing laboratory stand.
|
|
|
Design of pneumobil driven by pneumatic motor
Podhorský, Petr ; Robenek, Dětřich (referee) ; Nevrlý, Josef (advisor)
Master thesis deals with design of "student" pneumatic car equipped by pneumatic elements of a chosen firm. The introductory part is devoted to mapping the Hungarian competition. The idea of designing such vehicles comes from this competition. Next step is analysis of vehicles that are present in this competition. The main part describes the development of vehicle from the initial design, through analysis of main components, through to the production and presentation. The work contains a strain-stress analysis of the frame which is made by using the finite element method. The work ends with the conclusion which assesses the results.
|
|
|
Testing of strength of extracorporeal blood circulation connections
Pospíšil, Luděk ; Friedel, Daniel (referee) ; Nevrlý, Josef (advisor)
This thesis deals with testing the connection strength between the cannula and tubing for extracorporeal blood circulation. The first part gives information about tubing, cannulas and instruments in extracorporeal blood circuit. The following is the issue of connection strength, design and assembly of measuring stand including a measurement of the required parameters for different conditions. The second part deals with the evaluation of the measured data. The outcome of this work is measuring breakaway strength on pressure and temperature of the flowing medium and the size of the tensile forces in the axis of the tube over time, analysis of results and comparison with materials from supplier cannulas and tubing.
|
|
|
Simulation of the energy recovery circuit function
Kubíček, Ondřej ; Ficza, Ildikó (referee) ; Nevrlý, Josef (advisor)
This bachelor thesis describes the design and optimization of a mathematical model for simulating the hydrostatic energy recovery systems. The mathematical model together with the experimental stand should be used to simulate the operating conditions of vehicles using the hydrostatic energy transmission. These include vehicles for collection of municipal waste, public transport vehicles, or for heavy construction machinery. The paper summarizes the current efforts in the design of analytical models, describes the program developed in MATLAB, and is devoted to analyzing the influence of individual input parameters on the output calculation.
|
|
|
Amphibious off-road car with hydraulic drive
Nožka, Michal ; Vlašic, František (referee) ; Nevrlý, Josef (advisor)
The main purpose of this bachelor's thesis is a feasibility study of an amphibious off-road car with hydraulic drive. The first part of this thesis contains basic theory of amphibious vehicles and hydraulic drives of vehicles. The second part consists of chosen amphibious cars and their comparisons. Part of this thesis also suggests hydraulic components that could be used for construction of this car.
|
guest ::
RSS feed.