|
|
Design of the six seat helicopter with one turboshaft engine
Nasibullin, Bulat ; Tříska, Václav (referee) ; Petrásek, Miloslav (advisor)
The aim of this work is to develop a preliminary design of a six-seat helicopter with a turboshaft engine. The preliminary design of the helicopter consists of processing statistical data on similar helicopters, which are then, based on the specified requirements, used to estimate the basic weight parameters of the helicopter, the main geometric parameters and to determine the type and power of the propulsion unit. It consists of calculations of basic geometric parameters of the aircraft and engine selection. Part of another solution is the aerodynamic calculation of the supporting rotor, from which both the performance of the helicopter in suspension and in forward flight flow. In a special part of the project, the attention is paid to the system of balancing the reaction torque, in this case fenestrone and the solution is supplemented by some specific means installed on the tail beam, which help to balance the reaction torque and improve the directional control parameters of the helicopter.
|
|
|
Travelling and lifting mechanism
Folprecht, Michal ; Malach, František (referee) ; Malášek, Jiří (advisor)
The main goal this thesis is presenting solution for manipulation with chopper BELL between of hangar and landing zone. The main task is design useful construction solution by required task, also perform a strenght calculations each part of mechanism and drawing documentation. Also included is a 3D visualization of the entire mechanism.
|
|
|
History and use of the helicopters in the Czech Republic
Novák, Josef ; Nastálek, Ondřej (referee) ; Chlebek, Jiří (advisor)
Final work concerned with rotocrafts which have ever been used on Czechoslovak region, further especially on region of Czech republic. The work focused on the oldest czech rotocraft aviation pioneers together with accentuating the importance of original czech helicopters. Whole review of helicopters are completed with Attachment 1, which shortly describes all types of used helicopters. Then the work gives in detail using rotocraft by institutions when was looked for historic affairs.
|
|
|
Design, production and testing of education model "Helicopter with two rotors"
Zouhar, František ; Šolc, František (referee) ; Grepl, Robert (advisor)
This work deals with designing and testing of education model "Helicopter with two rotors". The first part is focused on the consturction. Function requirement and set of options of solutions appointed. One of options is chosen and developed by 3D CAD systems. Balance-sheet of possible materials is elaborated in the maximum level available motor pull. Central placing of model is proposed to be able to move in 3 axes. The force electronic are designed and constructed in the second part. Suitable sensors, control method of motor speed and power support are chosen. According to this part the printed circuit board is created, which work as interface between PC (card MF624) and helicopter. In the last part model parameters are identificated and PID control is constructed. Selection procedure of parameters is analyzed in detail, each difficulties are mentioned and obtained data are evaluated. PID control is realized by degrees with regard to complexity of controlling the axes. Problems with disturbance and its impact on control is discussed also.
|
|
|
Air flow load on a roof structure induced by a helicopter during erection works
Fidler, Tomáš ; Križan, Jiří (referee) ; Nevařil, Aleš (advisor)
Diploma thesis is focused on modeling rotor downwash generated by the main rotor of helicopter and analyzing its effects on the roof structure. Theoretical definition of rotor downwash flow is described in the first part of the text. Governing equations of computational fluid dynamics are briefly explained as well as boundary layer and finite volume method. Next part inquires into numerical simulation of rotor downwash based on height of rotor above the roof, shape of roof plane and climatic conditions. Results are compared with climatic load values provided by actual Czech construction standard in the end of the text.
|
|
|
Travelling and lifting mechanism
Husák, Adam ; Šťastný, Antonín (referee) ; Malášek, Jiří (advisor)
This bachelor´s thesis is aimed on traveling and lifting device designed for transportation of BELL helicopters between tarmac and hangar. The first part is devoted to review and evaluation general producers of similar devices. Furthermore there are analysis of possible mechanisms and subsequent choice of appropriate solution. The second part deals with design solution and calculations. Includes drawing of designed device. This device is defined by load capacity up to 2000 kg and stroke 80 mm.
|
|
|
The history of civil aviation 1950-1970
Bednář, Ondřej ; Kaddour, Mirvat (referee) ; Chlebek, Jiří (advisor)
This bachelor's thesis creates an overwiev of the history od civil aviation from 1950 to 1970. After World War II civilian transport aircraft was not common. At the end of the above two decades has become an essential part of traveling on long distance. Attention is given to important events in the history of aviation from transitiv from turboprop to turbofan engine. The highlight of this period was the construction of transport aircraft capable of overcoming supersonic speed.This thesis describes the development of helicopter construction. Attention is also given to the large construction offices in Europe, Asia and North America. Part of the work dealth with a development of aviation in Czechoslovakia.
|
|
|
Travelling and lifting mechanism
Bernard, Vladislav ; Malach, František (referee) ; Malášek, Jiří (advisor)
The thesis deals the design and calculation of handling equipment designed for transport of Bell helicopter between the airport and hangar space. The first part contains an analysis of possible mechanisms applicable to the handling of the helicopter as well as an overview of the overall evaluation of some producers, engaged in the manufacture of this type of device. The second part presents the design, necessary calculations and drawing documentation. Handling equipment is designed for loading kapacity of 2000kg with a minimum 80 mm lift of helicopter to ensure safe transportation to the required distance.
|
|
|
Helicopter Control System
Pukl, Marek ; Vaněk, František (referee) ; Zablatzký, Jiří (advisor)
The object of the bachelor thesis is to create a research in field of helicopter control systems. First pat focuses on cyclic and collective control. Second part contains yaw control and anti – torque control. The end includes a review of the acquired information.
|
|
|
Helicopter rotors
Brožek, Petr ; Pejchar, Jan (referee) ; Petrásek, Miloslav (advisor)
The Bachelor thesis Helicopter rotors has several purposes. Delineate historical development of the helicopters as a vehicle and combat vehicle. Describe main parts and their roles in helicopter. Put into aerodynamics of the rotors. Create overview of the most commonly used types of the helicopter main rotors and anti-torque configurations for contemporary helicopters, followed by a more detailed analysis.
|
guest ::
