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Air works with helicopters
Orolin, Pavol ; Hammer, Jaromír (referee) ; Šošovička, Róbert (advisor)
This bachelor work aim to issues of use the helicopters in the external sling load works. Deals with economic operation of helicopters and explain high financial costs in this activity. This thesis include short introduction to basic dividing of helicopters and principle how the helicopter works. Next is the attention given to description of external sling load set and risks including work with sling load. Attention is dedicated to technological procedure of build ski lift, with choosen type of helicopter. Content is complete with legislation, which explains pilot trainnig for flying with external sling load.
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Air transport helicopters
Rybka, Slavomír ; Horák, Marek (referee) ; Nastálek, Ondřej (advisor)
The Bachelor thesis contains introduction of the helicopter techniques from the beginning of their development to the present. The work includes complex view on the types of the transport helicopters based on their characteristic elements of design. The machines are devided according the number and location of the rotor, the method of dealing with reaction torque, engine type, the type of rotor heads and take-off weight. There is an overview of selected types of categories for each group, too. The work also includes profiles of selected companies which provide services related to helicopter transport in the Czech and Slovak Republic, including pricing list of services they offer.
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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.
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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.
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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.
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Preliminary Design of a Small Two Seat Helicopter
Junas, Milan ; Rozehnal,, Dalibor (referee) ; Petrásek, Miloslav (advisor)
The thesis deals the preliminary draft of the small two-seat helicopter with a piston engine. The aim of the thesis is not to propose a helicopter across the extent of the problems. Therefore we have chosen only selected issues which can be managed in the range of work. The introduction is focused on defining the general requirements imposed on proposed helicopter, formulating the basic conceptual and structural design according to the building regulation the relevant category. These ranges create a based assumption for right evaluation of the statistical analysis of the helicopters of the same or very near parameters category. Subsequently, there were defined the basic parameters of the proposed helicopter which make possible to solve the performance characteristics in the vertical and backward flight. The work is also focused on design of the rotor head of main rotor for the proposed helicopter, the definition of load acting on the rotor head, waving analysis and calculation of centrifugal forces acting on the main rotor blades. The design of the rotor head and also the helicopter as a whole will be graphically processed in the program Dassault Systemes Catia.
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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.
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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.
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Quadrocopter realization
Pekarovič, Ján ; Galetka, Josef (referee) ; Götthans, Tomáš (advisor)
This thesis deals with the design of a helicopter with four rotors known as quadcopter. It describes the principles of operation and existing modifications. Part of the work is the selection of a suitable frame, remote control set, engines and propellers, battery, sensors for stabilization and detection of obstacles and microcontroller for their operation. The paper presents the concept of the specific copter design, design and simulation of printed circuit boards to their self-production, activation and testing. The final part of the thesis includes an economic assessment of the project and its comparison with competitors.
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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.
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