|
|
Retractible landing gear design for Z 143 LSi airplane
Gregor, Jiří ; Vaněk, František (referee) ; Píštěk, Antonín (advisor)
The diploma thesis deals with the design of the replacement the Z 143 LSi landing gear with the new VUT 100 type landing gear in a retractable system. The first part of this thesis is devoted to the description of the Z 143 LSi aircraft and its landing gear and the description of the retractable landing gear type VUT 100. The next part describes the possible variants of the installation the VUT 100 landing gear, which are critically evaluated. Then there is selected the final variant for the installation, which is designed in Catia V5 software. The final design includes remotorization with Lycoming IO-390 and new design of engine bed. For the proposed solution, a new mass analysis with the calculation of centrations, new cases of ground load, a new flight envelope of load and additional cases of load of a new engine bed are prepared. The proposed engine bed is analyzed by the finite element calculation method in the MS Patran software. Finally, a possible scheme of the chassis retraction system is proposed.
|
|
|
Construction of equipment for thin walled L-profiles instability testing
Polčák, Marek ; Vaněk, František (referee) ; Horák, Marek (advisor)
Bachelor’s thesis deals with the loss of stability of axially loaded thin-walled aluminium profi-les, which make up an important part in the aircraft structures. The loss of their stability is tes-ted by the compression test, which is used to determine the buckling load. Compression test may be influenced by many factors, which are related to the fixing to the testing machine. The aim of the thesis is to design a fixture, which would fix a specimen to the testing machine and improve the results of the test.
|
|
| |
|
|
Aircraft Hydraulic Systems
Puller, Tomáš ; Vaněk, František (referee) ; Třetina, Karel (advisor)
Work "Hydraulic system of aircraft" is focused on the issue of hydraulic transmission of forces to control the airplane. The first and second part summarizes the main characteristics of hydraulic systems and the basic physical properties of liquids.The third section describes various components of hydraulic systems and their characteristics. The fourth part contains a description and diagrams of different types of hydraulic circuits and the fifth part describes types of servocontrol systém of aircraft. In chapters 6 and 7 are descriptions of hydraulic systems of two Czech airplanes, L - 159 and L – 410. The next part contains statistical summary of power installations in small and medium-sized airplanes, and comparison of properties of different forms of transmission power. Finally, the evaluation of the statistical summary is carried out.
|
|
|
Structural design and stress analysis of ski landing gear for airplane with short take-off and landing
Hostinský, Vladimír ; Vaněk, František (referee) ; Katrňák, Tomáš (advisor)
The aim of this thesis is a design of a ski landing gear for the STOL Cruiser airplane and strength analysis of its parts with consideration of UL-2 and CS-LSA regulation requirements. First part follows the design process from a concept to detailed design. Decisions taken during the process and reasons behind them are discussed. In second part requirements of regulations for said aircraft’s landing gear are summarized and forces acting on the landing gear are calculated. This calculation is followed by a strength analysis of critical parts. Analysis of composite body of the ski carried out with a use of FEA and optimalization of its composite material layout is presented in a more detailed way.
|
|
|
Structural design of testing facility for actuator stroke and force measurement
Zatloukal, Tomáš ; Vaněk, František (referee) ; Horák, Marek (advisor)
The bachelor thesis examines the design of testing facility for heat switch. It focuses mainly on the construction, but it does not omit the necessary measuring equipment, measuring procedures and other specifications. The first part describes the requirements for the development of experimental facility. The next part deals with the selection of position sensor and force sensor, which includes an extensive study of possibilities. The following section deals with the automatically controlled heating system and temperature measurement, lists the necessary parameters of components, and proposes their implementation. The final part of the thesis describes how to achieve to the structural design of the testing facility. There are also strength analyses and measurement procedures for pressure and tensile testing.
|
|
|
Conceptual design of competition model airplane
Pospíšil, Jakub ; Vaněk, František (referee) ; Hájek, Tomáš (advisor)
This bachelor thesis deals with the conceptual design of a competition model of an aircraft for an international student competition. The introduction deals with the rules of the competition and their subsequent analysis. The research part deals with a possible concept of the aircraft from the point of view of various configurations of individual parts of the model. In the practical part, the characteristics of individual parts of the aircraft are processed and a mass analysis is performed.
|
|
|
Firefighter modification of EV-55 aircraft
Petruška, Ondřej ; Vaněk, František (referee) ; Krmela, Luděk (advisor)
Diplomová práce se zabývá přestavbou dvoumotorového letounu EV-55 vyvíjeného společností Evektor s.r.o. na požární verzi. Konstrukční úprava odpovídá předpisu CS-23 Amendment 3. Nejprve je provedena studie a porovnání se současnými konkurenčními požárními letouny. Na základě této studie je zhodnocena vhodnost letounu EV-55 pro přestavbu na požární verzi a stanoveny požadavky, které musí požární EV-55 splňovat z hlediska konkurenceschopnosti. Na základě těchto požadavků a certifikačních předpisů je provedena hlavní část práce - konstrukce hasicího zařízení a navrženy nutné konstrukční úpravy trupu letounu. Dle uvedeného předpisu je dále provedena pevnostní kontrola zařízení a trupu s úpravami. Na závěr je zhodnocen vliv hasicího zařízení na letové výkony a stabilitu letounu.
|
|
|
EV-55 aircraft modification for water level landing
Šponer, Jan ; Vaněk, František (referee) ; Chybík, Ladislav (advisor)
Diplomová práce se zabývá modifikací stávající pozemní verze letounu EV-55 pro možnost přistání na vodní hladině. Snahou je najít takovou variantu, která nepovede k výrazným konstrukčním zásahům do draku letounu a bude vyhovovat stavebnímu předpisu CS 23, zejména požadavkům týkající se plovatelnosti a stability na vodě. Je proveden hmotový rozbor modifikované verze a s tím související omezení hmotové obálky a rozsahu centráží. Zatížení od vody je spočítáno v souladu s CS 23. Pro toto zatížení je následně navrhnuto konstrukční řešení uchycení plováků k trupu a provedena pevnostní kontrola jednotlivých prvků a spojovacích uzlů. Tyto hodnoty jsou dále porovnány s pozemními případy zatížení a stanoveny součinitele rezerv. V závěru jsou spočítány letové výkony: maximální horizontální rychlost, stoupavost, dolet a vytrvalost.
|
|
|
Modification of JA-400 aircraft landing gear
Rakušan, Miroslav ; Vaněk, František (referee) ; Jebáček, Ivo (advisor)
The master‘s thesis is focused to design and to calculation of tailwheel-type landing gear for ultralight aircraft JA-400 according to rules UL 2 part I. – ULL and LTF UL. In the first part is search about aiplanes with three types of landing gear. Then there is rule comparison, with result what rule will the calculation meet. Then the concept and design of landing gear is proved. In the end the improve of lift option is mentioned.
|
guest ::
