|
| |
|
|
Design of Composite Chassis for Formule Student
Gregor, Lukáš ; Šplíchal, Jan (referee) ; Mališ, Michal (advisor)
This bachelor thesis deals with structural design and manufacturing of Formula student chassis according the latest rules with primary aim to composite monocoque. In theoretic part is briefly described Formula student and the team. It shows actual used designs of chassis in competition and characteristics of composites and sandwich structures. In design section is described the design of the chassis due to safety, ergonomics and connections to other parts of the car. At the end is shown the manufacturing process of CFRP monocoque. The output of this thesis is made chassis of Dragon 8.
|
|
|
VUT 081 Kondor aircraft aeroelastic analysis
Talanda, Tomáš ; Šplíchal, Jan (referee) ; Juračka, Jaroslav (advisor)
This master thesis deals with VUT~081~Kondor aircraft flutter analysis. This aircraft is being designed at the Institute of Aerospace Engineering, Faculty of Mechanical Engineering, Brno University of Technology. The thesis contains detailed aircraft description, natural frequency and normal modes computation as well as aircraft structure flutter analysis and critical flutter velocity determination. Some structure improvement recommendations have been given in order to increase the critical flutter velocity and to fulfil the CS-VLA regulation requirements.
|
|
|
Modification of the landing gear of the Irbis aircraft
Forman, Tomáš ; Vaněk, František (referee) ; Šplíchal, Jan (advisor)
This master thesis deals with the landing gear rebuild from tail gear to nose gear of the M-4 Irbis aircraft. The first chapter presents the aircraft in its current state and includes some technical data, too. The theoretical information about types of landing gears, its characteristics, pros and cons and the typical representatives for each type of landing gear are mentioned in the second chapter. The third chapter is about landing gear loads that occur during landing and about the load calculation according to UL 2 regulation. The following chapter shows the construction of the new landing gear, including some of the suggested, but not realised, designs. In the fifth chapter, there is a landing gear strength calculation of some of the gear components. The calculation is analytical and then uses FEM. The very last chapter then shows the effect of new landing gear on the centre of gravity in its extreme positions. The chapter also compares aircraft masses with both landing gears.
|
|
|
Front landing gear design of PS-28 Cruiser aircraft
Marcinko, Peter ; Šplíchal, Jan (referee) ; Katrňák, Tomáš (advisor)
This diploma thesis deals with the design of the front landing gear with steering nose leg and hydropneumatic shock absorber, designed for aircraft PS - 28 Cruiser. In the thesis there was created design of basic types of front landing gear and the best option was selected. The work is further elaborated design of hydropneumatic shock absorber and comparise with the measured load. At the end of the work it was created the structural design of the front landing gear.
|
|
|
Fuselage and control system design of VUT 081 Kondor
Kalný, Jan ; Šplíchal, Jan (referee) ; Mališ, Michal (advisor)
This master’s thesis deals with VUT 081 Kondor composite fuselage design and control system layout design. Load computation and selection of critical load cases are made. Principal inner surfaces of the fuselage are designed with respect to basic ergonomic requirements of the crew. Construction materials are chosen and a layup of composite materials is performed. Fuselage FEM model is made in MSC Patran/Nastran system and the structure-strength analysis is given for chosen load cases.
|
|
|
Designe of a control system for powered sailplane SONG
Cejpek, Jakub ; Šplíchal, Jan (referee) ; Mališ, Michal (advisor)
The objective of this work is to adopt and further expand the type design of the SONG motor glider. The study will result in the basic aerodynamic calculation and the design of lateral control system including structural strength inspection of selected parts. Subsequently, the proposal will allow for further calculation to be made (of flight mechanics, wings strength or fuselage and empennage firmness) and for more specific constructional design of individual components of the glider.
|
|
| |
|
|
Proposal of welds number reduction on aluminium aloys frame doors for rail vehicles
Šplíchal, Jan ; Vaněk, Mojmír (referee) ; Sigmund, Marian (advisor)
This Diploma thesis presents possible proposals of welds number reduction frame doors for rail vehicles welded from profiles from aluminium alloy EN AW 6060, which is heat treated by temper T66. Profiles are welded by TIG process with additional material S Al 5087 (AlMg4,5MnZr). The heat treatment by the welding cycle causes a change in structure of basic material and decrease of mechanical properties due to dissolution of precipitates. To measure the necessary mechanical properties of the material after welding a tensile test was performed on the delivered samples. The resulting values from tensile test were subsequently used as cut – off values in the new door frame design by FEM simulation in Virtual Performance Solution software with PAM – Crash extension. The newly designed frame was welded according to the necessary welding procedure specifications, which are also part of the thesis. The conclusion is devoted to the economic evaluation of the current and new design of the door frame.
|
|
|
Design of a composite shock absorber according to the rules of the Formula Student competition
Janečka, Jiří ; Vaněk, František (referee) ; Šplíchal, Jan (advisor)
The thesis deals with one of the possibilities of improving the existing impact absorber solution for the Dragon e3 monopost of the TU Brno Racing team. The first part of the thesis contains a research on the use of composites in energy absorption, mechanisms and failures occurring during the absorption itself. Then the most used concepts of impact absorbers are mentioned and described. In the second part, the design and implementation of the technical solution of a composite impact attenuator according to the rules of the Formula Student competition is carried out. This solution was then tested with drop test and the necessary data were measured. Finally, the crash test results were evaluated, these were then compared with the simulated data and corrections were made to the computational model. Comparisons with the previous absorber generation were also made and the main differences were described. Attention was also paid to the failures occurring during the crash test. The technical solution was evaluated and modifications for future generations of impact attenuators were proposed.
|
guest ::
