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Eccentric Cranktrain
Kóňa, Marián ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This thesis is focused on design of four-stroke engine eccentric cranktrain. The thesis includes kinematic analysis of mechanism. The main attention is paid to examination of dynamic variables which burden piston skirt. Result of the thesis is designed eccentricity value of mechanism to reduce piston skirt stress.
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Piston for 77kW 4-stroke CI-engine
Štol, Michal ; Svída, David (referee) ; Dundálek, Radim (advisor)
Annotation Michal Štol Piston of 4-stroke supercharged diesel engine for passenger car ÚADI, 2008, 39 pages., 18 images. In this bachelor works we will focus on description of piston’s group mostly, with characteristic properties and sorts of production. Further, we will make basic design of piston with strenght control of critical piston intersections. Then we can make drawings of individual part of piston.
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Piston Modification for Suzuki Swift 1,3 GTi 4-stroke SI-engine
Bastl, Ondřej ; Blaťák, Ondřej (referee) ; Svída, David (advisor)
This bachelor’s thesis is engaged in a piston modification of engine type G13B of vehicle Suzuki Swift 1.3 GTi. The aim of my work is to perform changes of some dimensions of the piston, while complying with some of the main dimension, to increase its stress resistance and the engine’s power. Strength calculation for the piston to last during the whole service life of the engine is an indispensable part of this work.
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Theory of pneumatic car design
Stodolák, Martin ; Robenek, Dětřich (referee) ; Nevrlý, Josef (advisor)
This thesis covers the theoretical solution of the compressed air powered vehicle. The first section describes the competition of the compressed air powered vehicles, that is annually held in Hungary, where the idea for such a car design was created. There are also additional descriptions of the construction of the machines from the hungarian competition. In the second section there is a calculation of the chosen vehicle construction, where the main emphases is based on the calculation of the drive of the vehicle. The description of the manufacturing, tests and vehicle presentation follows.
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Design of two-stroke Combustion Engine
Kalenda, Tomáš ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The Master's Thesis is focused on a design of motorcycle two-stroke combustion engine. This single cylinder engine of a stroke volume of 50 ccm is based on a geometry of an existing engine of Blata company that has a stroke volume of 40 ccm. The newly designed engine contains some parts that are used in 40 ccm engine as well. This thesis contains a proposal of production technology of a cylinder as well as an analysis of actuating forces on crankshaft mechanism and solidity control of a piston and piston-rod.
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General Solution of Cranktrain Mechanical Losses
Honc, Robert ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
Master’s thesis deals with the description of cranktrain friction and presents and describes experimental cranktrain friction loss evaluations and computational cranktrain friction loss evaluations. The main problem is the creating software solution of selected computational friction loss evaluations that leads to calculation of cranktrain friction losses. Master’s thesis describes chosen computational friction loss methods and the subsequent creation of the software solution. After application on chosen internal combustion engine, it evaluates the results and draws conclusions about functionality of the software solution.
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Piston for 108kW 4-stroke SI-engine
Burýšek, Karel ; Dundálek, Radim (referee) ; Svída, David (advisor)
This Bachelor work is engaged in computing and constructional concept of a piston, intended for the four-stroke spark-ignition engine for private cars whith a view to main dimensions of a piston so that it should be able to work in conditions, which are determinated to, for all the period of it’s lifetime. We need to set strength calculations, which are inseparable part of the project procedure.
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Four-cylinder gasoline engine with cylinder deactivation
Steigl, Vladimír ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of this diploma thesis is design of configuration and balancing of crankshaft which is determined for four-cylinder gasoline engine. The thesis investigates kinematics, dynamics and possible ways of balancing the inertial forces and moments of the rotating and sliding parts of the central crank mechanism. Subsequently, the 3D CAD model is designed according to the presented drawing. It is transformed into a spare torsion system, from which the calculations of its own and forced torsional vibrations are based. The proposed 3D CAD model is then spatially transmitted in the FEA software Ansys Workbench and modified (boundary conditions, etc.) in the FEA software Ansys Mechanical APDL so that it can be calculated according to the selected LSA method. From the selected results of the LSA method, the crankshaft safety factor against fatigue damage is calculated.
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Stress and strain analysis of connecting rod in combustion engine using FEM
Biječek, Tomáš ; Hutař, Pavel (referee) ; Vaverka, Michal (advisor)
In this diploma thesis is completed the FEM analysis of connecting rod in combustion engine Briggs & Stratton of the garden lawnmower. Within the frame of computing in the FEM system ANSYS Workbench is solved static structural strein and stress analysis, buckling analysis a fatigue also. The boundary conditions for FEM computing come out from the kinematic and dynamic analysis of the crank-slider mechanism in combustion engine. The 3-D models of the crank-slider mechanism are created in parametric SolidWorks modeller. Own construction variants of the connecting rod based on results of FEM analysis are also designed.
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