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Dissertations / Theses on the topic 'Crankshaft mechanism'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Cain, Jason James. "Collision Analysis of the Reversible Crankshaft Mechanism in a Convertible Refrigeration Compressor." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/33479.

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The purpose of this study is to analyze the behavior of a reversible two-cylinder refrigerant compressor manufactured by Bristol Compressor Incorporated. This compressor contains a specialized linkage that causes the compressor to transition from a two-cylinder compressor to a single-cylinder compressor when the direction of rotation of the crankshaft is reversed. The linkage accomplishes this by reducing the throw of one cylinder to zero. Of interest are the conditions to which this linkage is subjected when the direction of rotation is again reversed, causing the compressor to return to i

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2

Smékal, Tomáš. "Hnací mechanismus Stirlingova motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231037.

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This article contains description of basic principles of stirling engine, construction types and its parts, which supplies motor run and description of using in real life too. The main topic is analyses of driving mechanism supplying both pistons movement of stirling engine on Robert Stirling‘s drawing from 1816.

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3

Hrouzek, Jan. "Píst zážehového motoru na CNG o výkonu 140 kW." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230910.

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This master’s thesis deals with the piston for modified engine 1.4 TSI from Volkswagen concern. It includes calculation of kinematics and forces reactions of the crank mechanism of the engine for speed 6071 rpm elaborated in the program Mathcad Prime. Further the work includes calculation for reducing the magnitude of lateral force and design of several variants of the piston. For the proposed design variants of the piston are performed FEM analysis of mechanical state of stress and comparisons of contact pressures in the program ANSYS Workbench.

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4

Malinský, Marek. "Namáhání ojnice v multi-body systému." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228976.

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The aim of my thesis is to create a procedure for the calculation of con rod stress in MBS Software. The thesis contains several parts, i.e. a short research of contemporary con rods, con rod modelling with the use of Pro/E, methodics of the finite-element con rod model preparation and model analysis in ANSYS Software, creating of virtual combustion engine template with flexible con rod and carrying out a strain hardening analysis in ADAM/Engine software. The theme of my thesis is quite demanding in the combination and the use of several computer software programmes. The thesis offers a survey

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5

Mlčoch, Pavel. "Čtyřválcový zážehový motor s excentrickým klikovým mechanismem pro osobní vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232114.

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This Diploma Thesis is aimed at exploring the potential of offset crankshaft mechanism for four cylinder inline petrol engine in terms of reducing the frictional losses of the piston group. Thesis deals with the influence of eccentricity on kinematics, dynamics and balance of the crank train. Furthermore, specific crankshaft balancing is elaborated and applied on 3D CAD model of the crankshaft. Calculation of fatigue safety factor using the advanced LSA method that takes into consideration the effect of forced torsional vibration and utilizes outputs from the FEA software (ANSYS APDL) is perfo

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6

Ducheček, Martin. "Čtyřválcový řadový vznětový motor s excentrickým klikovým mechanismem pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232116.

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The purpose of this thesis is to evaluate the influence of eccentricity of crank mechanism to the force between the piston and the cylinder liner for appointed crank mechanism. Furthermore the influence of eccentricity to balancing crankshaft is verified and for selected value of eccentricity is realized balance. For the construction check was realized stress analysis of crank mechanism included torsion vibration.

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7

Kalenda, Tomáš. "Návrh dvoudobého motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228737.

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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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8

Dragoun, Jan. "Dvouválcový čtyřdobý plochý zážehový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230626.

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This thesis deals with the possibilities for realization of the crankshaft-cylinder four-stroke gasoline engine is flat, usable in the urban vehicle. In the work described stresses exerted on the crank mechanism can balance the crankshaft, torsional stress and strength calculation method of control. In the final part of this work is outlined proposal for implementation of the crankshaft.

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9

Steigl, Vladimír. "Čtyřválcový zážehový motor s vypínáním válců." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318839.

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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 A

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10

Ehrenberger, Pavel. "Modální vlastnosti klikového ústrojí čtyřválcového traktorového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228988.

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This diploma thesis contains a summary of the general information about the torsion vibration of the crankshaft. The main task is to prepare a flexible model of the crankshaft in the FEM program ANSYS and the subsequent export into the MBS ADAMS / Engine. According to parameters the model of four-cylinder line tractor engine with flexible crankshaft is built. Crank mechanism is analyzed to determine the natural frequencies and natural modes. Finally the results are evaluated and compared with analytical calculations.

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11

Nikolaychuk, Yaroslav. "Čtyřválcový vznětový motor pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-377457.

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The diploma thesis focuses on the design of the crankshaft for a four-cylinder diesel engine for commercial vehicles, the main task of this work are the design configuration of the crankshaft balance inertia forces and torques at the crank mechanism, drawing documentation crankshaft design strength check considering torsional vibration.

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12

Kusyn, Petr. "Píst zážehového přeplňovaného motoru 2.0L." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230913.

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This diploma thesis is focused on solve of design solutions for piston for turbocharged version of Honda K20A engine, especially on reduce of side force acting on piston. There are mentioned methods and on their basis also design solutions for piston to reduce this force. There is also included kinematic and dynamic analysis for each solution and as well their FEM analysis for testing the suitability of these solutions.

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13

Švarc, Marek. "Pětiválcový vznětový motor pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318711.

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The aim of this diploma thesis is the design of the configuration and the method of balancing the crank mechanism with the specified parameters. For a particular configuration, a crankshaft drawing is processed and a strength analysis, considering the crankshaft torsional vibrations is performed in Ansys FEM software. At the end of the thesis, an ideological design of the torsional vibration damper and its effect on the crankshaft stress in the Ansys FEM software is performed.

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14

Doležal, Lukáš. "Inovace skládané klikové hřídele pro minibikové motory." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229398.

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The present diploma thesis deals with innovation of built-up crankshaft of Blata minibikes. Minibike is the type of a small two-stroke motorcycle equipped with an internal combustion engine of the volume 40 or 50 cm3. The machine is designed for racing circuits; not only for young riders but also for seniors. The innovation is in the design and verification of pressed connections in the imposition of major pins in the arms of the crankshaft. Pressed connections are designed on the basis of the analysis of force interaction on the crankshaft at maximum revolutions. The proposed solutions are ve

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15

Hruška, Miroslav. "Hydrodynamická ložiska šestiválcového vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229930.

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This master’s thesis focuses on hydrodynamic plain bearing drivetrain in-line sixcylinder diesel tractor engine. In the first part is used as reported in contemporary bearing materials and design solutions bearing basins. Furthermore, given the general Reynolds equation of hydrodynamic lubrication. The main part of the thesis is devoted to creating a virtual model of the crank mechanism in MBS system ADAMS/Engine. Rigid crankshaft in this model is replaced by the flexible crankshaft, which is prepared in the FEM software ANSYS and then exported. The final section presents the results of simula

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16

Johnsson, Roger. "Crankshaft speed measurements and analysis for control and diagnostics of diesel engines." Licentiate thesis, Luleå tekniska universitet, Drift, underhåll och akustik, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18687.

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The increasing demands from governments on the engine manufactures to lower the fuel consumption, lower the exhaust emissions and to reduce the noise have lead to an intensive research in the combustion process. Measurement of the combustion process inside the cylinder is only suitable in laboratory environment due to a number of limitations; the pressure transducer needed to measure the pressure is expensive, difficult to mount in the cylinder and has a limited lifetime that is much shorter than the engine's lifetime. Demands of on-board diagnostics where the combustion process is continuousl

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17

Pulava, Oleksandr. "Šestiválcový vznětový motor pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378397.

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The aim of this diploma is to design a crankshaft for a six-cylinder commercial vehicle, which is one of the unified motors. The main parts are the design of the crankshaft configuration, the crankshaft balancing method for forces and moments, the crankshaft design documentation, and the crankshaft strength verification. The design of torsional vibration damping characteristics is also made and its effect on torsional vibration and crankshaft strength is determined.

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18

Jadrný, Jan. "Výpočtový model vyvažovací jednotky řadového pětiválcového motoru v multi-body systému." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228008.

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The diploma thesis deals with a calculation and a construction concept of a balancing unit of a strait five cylinder combustion engine. The thesis contains the calculation and the construction concept of the balancing shafts. Also the concept of the calculation model of a driving mechanism with the balancing unit in MSC Adams – Engine is included.

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19

Josefíková, Kateřina. "Návrh klikového mechanismu leteckého vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229179.

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The purpose of this thesis is design of a crank mechanism for diesel aircraft engine. Next then appropriately balance crank mechanism, strength tests and calculation of crankshaft torsional vibration. Developing of drawings documentation of crankshaft.

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20

Svoboda, Radim. "Kontrola vyvážení klikového mechanismu maloobjemového traktorového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231005.

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The purpose of this thesis is determinate the forces in crankshaft mechanism acting on new design engine from company Zetor, assessment of the state of balance, design modifications balancing units, calculation of modal analysis, stress analysis and strain control. The content of the work is the creation of technical documentation for the newly modified balancer shafts.

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21

Vičík, Petr. "Klikový mechanismus zážehového šestiválcového leteckého motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230781.

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The aim of this work is to propose a cranktrain of a petrol six-cylinder aircraft engine with the specified parameters. Build dynamic model involved an air reducer and carry out the life-stress analysis important key parts of the crankshaft.

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22

Domský, Viktor. "Tříválcový řadový vznětový motor s excentrickým klikovým mechanismem pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232051.

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The goal is to investigate the influence of eccentricity on the force between the piston and the cylinder liner and the influence on balancing of the crank mechanism. For a selected eccentricity suggest a balancing method and perform stress analysis of crankshaft considering torsional vibration. Eccentricity is chosen by the ratio of centric and eccentric mechanism of friction work. The paper shows the effect of eccentricity on the selected kinematics values. Stress analysis is done in the software ANSYS. Using selected eccentricity the friction work was reduced by 10 %.

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23

Kovář, Lukáš. "Silikonový tlumič torzních kmitů šestiválcového vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318694.

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The aim of this thesis is to design crankshaft for in-line six-cylinder diesel engine and to design viscous torsional vibration damper for the cranktrain of specified parameters. The thesis includes the creation of a dynamic torsional model of cranktrain and calculation of forced vibrations of mechanism with and without damper. Part of this thesis is also strength analysis of the designed crankshaft with damper using the Finite Element Method (FEM).

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24

Maspeyrot, Patrick. "Comportement dynamique des paliers de vilebrequin : influence des défauts de forme et des mésalignements." Poitiers, 1989. http://www.theses.fr/1989POIT2266.

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Calcul de l'equation de reynolds en regime transitoire dans un palier hydrodynamique de vilebrequin en tenant compte des mesalignements et des defauts de forme. Utilisation de la methode de mobilite. Effets thermiques sur la lubrification

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25

Chou, Wei-Yu, and 周威宇. "Development of a dual-crankshaft mechanism with out of phase drive for speedy forming high-density optical microstructure array." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/5m7s2t.

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碩士<br>國立臺灣師範大學<br>機電工程學系<br>105<br>This paper presents the development and application of a dual-crankshaft balance mechanism with out of phase drive for rapidly fabricating high-density optical microstructure mold-core arrays. Four kinds of different drive-mechanisms involving crank-linkage, eccentric-cam, swash-plate-cam, and elliptical cam are devised and analyzed. The crank-linkage is employed as the driving mechanism for the reciprocating feed-tool system since it has an excellent positivity for speedily reciprocating motion, while the rest create the inferior tool following performance l

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