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Motocycle ride test methodology to identify tyre model parametres
Tobiáš, Martin ; Ph,D,, Pavel Ščerba, (referee) ; Magdolen, Luboš (referee) ; Porteš, Petr (advisor)
The topic of the thesis is the analysis of dynamic driving states of motorcycles within the long-term goal of creating new tools and methods for the purpose of vehicle research at the Department of Motor Vehicles, IAE, FSI BUT. The aim of the thesis is to develop a methodology to extract data from the measured motorcycle ride, usable for the creation and tuning of tire models. The method consists in the implementation of inverse multibody simulations using internally developed software tools. These require the creation of a plausible multibody model of the motorcycle and a measurement system that records the quantities corresponding to the degrees of freedom of the multibody model of the motorcycle with sufficient accuracy during the ride. The definition of appropriate riding manoeuvres is also part of the developed methodology. The thesis presents the realization of these requirements, including the results of inverse multibody simulations. These are further analyzed and processed in order to demonstrate their applicability to the intended purpose. Subsequently, a discussion of the achieved results and possible continuation of the research is offered.
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Connection
Kynclová, Iveta ; Bartošová, Zuzana (referee) ; Korbička, Pavel (advisor)
Iveta Kynclova's bachelor thesis will be based on the search for the relationship between lability and adrenaline, evaluating personal experiences related to riding a motorcycle. The work will include an appropriate choice of materials, allowing both the transmission of personal feelings and the creation of the resulting spatial objects or installations.
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Motorcycle wheel force transducer
Krišpín, Jakub ; Drápal, Lubomír (referee) ; Tobiáš, Martin (advisor)
This thesis deals with the design of a driven motorcycle measuring wheel. The wheel is designed for a KTM RC 390 motorcycle but can be used on another motorcycle if the centre section is replaced. The wheel is designed to measure torque and longitudinal and vertical force, which is very useful for analysing the dynamics of the motorcycle. The measurement systems designed to measure the forces and moments on the wheels of the vehicles are introduced in the beginning of this thesis. Furthermore, the wheel design for the selected motorcycle is presented including the optimization of the wheel spoke shape. The optimized shape creates a region of homogeneous stress where strain gauges are installed to measure torque. Subsequently, structural analysis is performed in Ansys software using FEM. It verifies the structure in terms of strength. Then suitable strain gauges are selected and their wiring is designed. The proposed measuring wheel should serve as an alternative to commercially available measuring systems which are very expensive. The material cost of the presented wheel is approximately 78 thousand CZK.
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Disc brake design and construction for the Simson S51 motorcycle
Povýšil, Jan ; Sliwková, Petra (referee) ; Dvořák, Jaromír (advisor)
The work is focused on the design, production, and tests of a disc brake for the Simson S51 motorcycle, whose original brake system is quite problematic, has low efficiency, and is already obsolete from today's point of view. In the beginning, the work deals with the issue of motorcycle brake systems and compares individual solutions. The design is processed in CAD software Autodesk Inventor Professional 2023, including drawing documentation, and mechanical calculations of the design are mainly performed in the ANSYS 2022R2 application. The work briefly summarizes the production process used to produce the given prototype. A comparison is made with commercially available solutions and a price calculation for production is made. Finally, tests of the functionality of the physically produced prototype and a comparison with the original braking system are performed.
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Re-design of the clamping of GPS module for motorcycle
Jeniš, Filip ; Dočkal, Kryštof (referee) ; Klapka, Milan (advisor)
clamping, clamp, GPS, motorcycle, FEM, analysis, design, construction, construction alteration
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Construction of On-board Computer for Motorcycle
Rulc, Martin ; Široký, Daniel (referee) ; Šteffan, Pavel (advisor)
This work deal with system design and implement of Trip computer for motorcycle serving as information element of speed and fuel consumption motorcycle. The general aim is design of device with graphic display that shall represent measured values of speed motorcycle, rpm of motor, onboard voltage, charging current, motor temperature and ambient temperature. All measuring data will be saving on memory card. For easily tracking in system menu will be used touch panel on graphic display.
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Single cylinder engines enduro category
Svoboda, Tomáš ; Beran, Martin (referee) ; Vančura, Jan (advisor)
Bachelor thesis deals with the description of typical enduro motorcycle engine and describes its main parts. Next volume concern about chosen types of enduro motorcycles and its en-gines. Achievement of every single engine is shown in dynamometric diagrams. Maintenance schedule which is affected by given achievements is shown in tables. The engines of enduro motorcycles have been partly compared with motocross motorcycle engines
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Design of Modern V8 Combustion Engine
Šebesta, Radek ; Drápal, Lubomír (referee) ; Svída, David (advisor)
Master´s thesis is considered with design and construction of V8 combustion engine with small size and low mass of its body. In the construction were used mass-produced components from the other engines. From every component was generated a 3D model in computer program Pro/Engineer, new necessary parts were made in the same program and put together to assembly. Main part of the construction was to design a new crankshaft, a crankcase and an engine lubricating system. The crankshaft was subjected computing analysis in program Pro/Mechanica, using FEM.
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Selected Driving Manoeuvres of Motorcyclists
Kriegsmann, Luděk ; Bradáč, Albert (referee) ; Semela, Marek (advisor)
The entire diploma thesis is designed into two parts. The first part is focused on the theoretical description of the construction of motorcycles. In particular, the theoretical part deals with the description of the types of motorcycles, types of frames, types of suspension and the description of braking systems used on motorcycles. In the theoretical part, the main parameters of the motorcycle are also addressed, which affect the handling and stability of the motorcycle while riding. The last theoretical part deals with the technique of riding a motorcycle. The second part is focused directly on the execution of the experiment. The experiment consists of measuring five disciplines, namely measuring acceleration, measuring braking deceleration using brakes, measuring deceleration by the engine, measuring exit from an intersection and measuring lateral displacement. Eight motorcycles took part in the measurement. The main outputs from the measurements are time data, deceleration and lateral acceleration values.
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