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Damage tolerance analysis using load interaction models
Vaněk, David ; Augustin, Petr (referee) ; Bvoc, Maroš (advisor)
Master’s thesis deals with study of fatigue crack growth retardation models. This document presents description, evaluation, verification and finally application of retardation models demonstrated on the damage tolerant structure. Analysis was provided on the L 410 NG aircraft in the location of the rear spar lower flange joint. Output of this thesis is comparison of the damage tolerance analysis with the current method using in the Aircraft Industry a. s., i.e. linear model without using load interaction models. The comparisons are fatigue crack growth curves, threshold and intervals of inspection program. AFGROW software was used for verification and application of retardation models.
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Effective use of 3D Cad systems in the field of process engineering-II
Marek, Tomáš ; Dvořák, Radek (referee) ; Pavlas, Martin (advisor)
The aim of this work was adoption and description of correct technigues of creation basic mechanical components under CAD system SolidWorks. This gained know ledge was then used for creation of library of standard parts used in process engineering with focus on design of pipeline systems. Conceretaly, the assembly of flouged circular Y-branch for duct system was solved. The possibility for its further modification of dimension as well as transformation into parts of similar shape was analysed. Finally, user manual describing the user interface and necessary design procedures was prepared.
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The Production of the oil pan
Šupa, Jan ; Žák, Ladislav (referee) ; Císařová, Michaela (advisor)
The dissertation deals with a suggestion of the production of an oil pan into the car with a deep drawing. The part will be produced out of a deep drawed steel plate – class 11 305 (DC04). On the basis of a calculation and the study of the corresponding literature about the deep drawing a reverse drawing in a convention tools with a blank holder has been suggested. The part of the machine will be also an upper ejector for the fall of a sticking of a drawn part in the die. As a semi-product a blank has been chosen, which is burned out from the piece of plate with the dimension of 2500 x 12500 mm and thickness 1 mm with the help of the laser. The production quantity is 30 000 per one year. As a forming machine a universal hydraulic presser CTH 250 from the Czech company Žďas a.s. with the nominal power 2500 kN has been chosen.
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Solution cutting operation of cover part.
Loukota, David ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
Analysis of the typical flanged parts, constructional and functional appreciation of the single part, design of the semi-finished product and fastening of the semi-finished product, choice of machines, tools, gauges for individual operations and technological process design and time calculation of of individual operations. Economical appreciation deal with assesment of the number of machines and deal with their usage at the production, calculation of sizes process area and quantity of the workers. Final costs of tools are also solved.
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The flange gasket modification of VVER 1000 pressurizer manhole
Švaříček, Tomáš ; Fiedler, Jan (referee) ; Šen, Hugo (advisor)
The main purpose of this thesis is the modification of the original flange gasket of the VVER1000 pressurizer manhole. Then the construction and function of the pressurizer itself is described, together with detailed calculations of the original and new modified gasket to meet the ČSN EN 1591 standard together with a description of the legislation that has to be followed in the calculations. The comparisons of both gasket types together with main conclusions are placed in the last section of this thesis.
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Production of wing rib
Ivančo, Radek ; Peterková, Eva (referee) ; Císařová, Michaela (advisor)
The thesis presents a proposal of production of a molded part from the aluminum alloy of group 2024 (dural). Based on the theoretical study and the requirements of the company was designed a cutting tool with a rounded edge for cutting the unfolded shape of the part on the eccentric press LEN 40 C. A new forming tool from textite material for fluid press Quintus QFC was designed. The parts of the cutting tool were designed primarily from normalized (purchased) parts. Manufactured punch and shearing die are made of commonly available tool steels and processed on the attached drawings. The result of the thesis is a recommendation to invest in a specialized workplace for the production of a unfolded shape and reduction of laboriousness adjusting after forming.
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Design of heat exchanger
Klučka, Ivan ; Nekvasil, Richard (referee) ; Lošák, Pavel (advisor)
This thesis is focused on the thermal-hydraulic and construction design of heat exchanger with floating head. The introductory part is dedicated to the design of heat exchangers. Next part is focused on the thermal-hydraulic design created in HTRI software (module Xist. The next section is the strength calculation of selected components of the heat exchanger according to EN 13445 in software Sant'Ambrogio. The following part describes each of the analysis in software Ansys Workbench. The final part contains complete manufacturing documentation of heat exchanger.
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Suggestion of technology for flange of the pump motor
Pangrác, Pavel ; Mouralová, Kateřina (referee) ; Zemčík, Oskar (advisor)
In a study of suggestion of technology for flange of the pump motor, properties about screw pumps, features of the machined flange and the blank are processed. On the base of machinery, tools and control devices are designed. The main part consists the proposal of technological process, operating drawings and machining time calculations. In conclusion, the techno-economic comparison of the existing and future variant is done.
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Bridge crane one-girder
Stanec, Stanislav ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma thesis deals with constructional design and a calculation of one-girder bridge crane with the requested primary parametres: lifting capacity 10 000 kg, span 12 000 mm, wheel base 2 500 mm, travel height 7 000 mm. In diploma thesis, there is executed analysis of constructional designs of box girders, drawn up technical report with the analysis of the choice of the construction with important technical and physical calculations. Calculations were executed according to valid Czech state norms and literature. Drawing documentation is enclosed to this thesis.
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Technological process for part flange
Král, Zdeněk ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
In This thesis the technological process for part flange is compiled. The thesis inculdes analysis of component, material choice and choice of semi – finished product. Two technologies of production have been choosen. The production on the universal center lathe and the production on the CNC lathe. In another charter calculation times are being disscussed. Lastly the technical-ekonomic evaluation is pictured, which contains the comparison between two technologies of production.
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