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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Modální vlastnosti klikového ústrojí čtyřválcového traktorového motoru / Modal Properties of 4-cylinder Tractor Engine Powertrain

Ehrenberger, Pavel January 2010 (has links)
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.
162

Konstrukce hydraulické štípačky dřeva / Construction of hydraulic wood-splitting machine

Šimčík, Jaroslav January 2010 (has links)
Bc. Jaroslav Simcik Construction of hydraulic wood-splitting machine DP, Institute of production machines, systems and robotics, 2010, p. 60, fig. 30, appendices 7, This master ´s thesis is concerned with the wood-processing technology with a focus on the construction of hydraulic wood splitter machine with a force 120 kN.
163

Návrh horizontální výměnné hlavy - VA1 –C / Design horizontal exchange of the head - VA1-C

Vyplašil, Jan January 2011 (has links)
Diploma thesis deals with the concept of interchangeable straight spindle head type VA1-C, used for automatic clamping in 80 kW spindle head from production of TOS Kuřim. Thesis contains survey of interchangeable heads, analysis of the spindle housing, strenght analysis of the spindle with the safety calculations in critical sec-tions and analysis of the clamping mechanism together with the calculation of the camping force, which holds the tools in the spindle. Analysis of the camping mechanisms contains calculation of the contact stress between balls and housings. All results are shown in the graphs. In the last part of the thesis are described the construction elements using the model of the interchangeable head. Enclosed is the assembly drawing of the spindle head, bill of material, detail drawing of the spindle and also 3D model of the interchangeable spindle head.
164

Návrh posuvové skříně osy X / Design of feed box X axis

Imrich, David January 2011 (has links)
The subject of this thesis is design of feed box for axis x of portal milling machine center FRP 300 from production of TOS Kuřim-OS, a.s. Thesis contains recherche in application field of rack and pinion drives for machine tools feed mechanisms, possible design solutions of given task and elaborate of the most appropriate solution. Thesis further includes calculations, 3D model and drawings of selected parts.
165

Návrh plošiny simulátoru / Design of platform simulator

Hlaváček, Pavel January 2012 (has links)
The diploma thesis deals with an analysis and the strength check of selected componenets of a parallel mechanism containing six degrees of freedom. The device uses crank mechanisms as chain guides. The strength calculation takes advantage of the finite element method. The paper also suggests a design of selected components contributing to a reduction of the maximum stress von misses (according to the HMH condition) causes by the load.
166

Návrh seřizovacího mechanismu pro projektor AFS světlometu / Car AFS Headlamp Adjusting Mechanism Design

Soukup, Lumír January 2012 (has links)
This work deals with AFS headlamp adjusting mechanism of the vehicle. The work provides an overview of current systems setup. Description of the design of new system adjustment. Compares movement kinematics of current and new adjustment system. It focuses on the creation of the necessary drawings for the proposed construction of a prototype mechanism.
167

Návrh horního nosníku dvousloupového regálového zakladače / Design of the upper beam two columned shelf stacker

Kuděla, Jan January 2014 (has links)
This master thesis deals with a concept of two columned shelf stacker’s upper beam. The first part contains a research of storage systems used in logistics and a description of the shelf stack’s basic parts. The second part is dedicated to the draft of the pulley arrangement with a rope calculation, pulleys and shafts, in the same the draft of the pulley attachment to the rope leading to the counterweights. It is followed by the concept of the couple winch drive ensues synchronized with the electronic cardan. The final part depicts the dynamic analysis of the lifting truck’s movement in the dependence on the load size and distribution respecting the dynamic effect of the counterweight act.
168

Naklápěcí a zdvihový mechanismus skladovacího zásobníku / Tilt and lift mechanism of storage tray

Ostrý, Josef January 2014 (has links)
The aim of this master thesis is to design a structural arrangement of lifting and tilting mechanism storage tower SSI Logimat, including the design of the drive. The introduction included a description of selected vertical storage systems of different companies and then compared them. Another section includes the design lift and tilt mechanism, calculation and design their drives and the subsequent description of their components. At the end of the master thesis is attached the drawings of the proposed mechanisms.
169

Tříválcový zážehový motor s excentrickým klikovým mechanismem pro osobní vozidla / Three-cylinder petrol engine with eccentric crank mechanism for passenger vehicles

Faiman, Jiří January 2015 (has links)
The first part of this thesis deals with the examination of the eccentricity of the crank mechanism for individual variables kinematics and dynamics of crank mechanism, analyticaly computed in Matlab. Then it compares the different possibilities of balancing moments of inertia forces and propose a specific design chosen for the value of eccentricity. In the second part is designed a model of crankshaft mechanism based on the investigated parameters. These parameters were carried out by structural analysis in Ansys.
170

Čtyřválcový řadový vznětový motor s excentrickým klikovým mechanismem pro užitková vozidla / Four-cylinder in-line diesel engine with an eccentric crank for commercial vehicles

Ducheček, Martin January 2015 (has links)
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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