• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 319
  • 27
  • 6
  • 2
  • 1
  • 1
  • Tagged with
  • 357
  • 287
  • 127
  • 125
  • 78
  • 73
  • 68
  • 67
  • 65
  • 65
  • 64
  • 48
  • 34
  • 32
  • 30
  • 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.
91

Návrh vozidla skupiny E2 pro závody do vrchu / Design of the Group E2 Vehicle for the Hill Climb

Malchárek, Martin January 2013 (has links)
This diploma thesis describes the design of the E2 hill climb car and it is design by following the FIA rules. Next parts are focused on detailed design of the front and rear suspension and design of the frame. Diploma thesis is processed using CAD system Autodesk Inventor 2011, in which was created all sketches and models. The suspension geometry during bound and rebound movement of the wheel was made in MBS system MSC Adams 2010. FEM analysis of the frame was made in ANSYS Workbench 12.1.
92

Biomechanická studie kolenního kloubu s aloplastikou / Biomechanical studies of knee jointarthroplasty

Zděblo, Jakub January 2014 (has links)
The presented diploma thesis deals with stress-strain analysis of the intact human knee joint and the knee joint after reconstruction using fixation plate. Finite element method is used to determine the biomechanical response of the knee under loading with the FE software Ansys. The three-dimensional finite element model is consisted of bony structures (femur and tibia) which were created using computed tomography (CT) data, articular cartilages and both menisci. Model of the locking plate (LCP) was created based on producer's technical guide. Three models of the knee joint with LCP fixation plate are created for three different sizes of condylar fragment based on the intact model. On all variants is applied loading corresponding to maximum loading in a gait cycle. The results show that reconstruction of the knee joint with locking plate has no effect on changing in contact pressure on tibial plateau.
93

Konstrukční návrh vertikálního výměníku tepla / Design of vertical heat exchanger

Vosynková, Jana January 2014 (has links)
Diploma thesis describes the design of a vertical heat exchanger in accordance with European standard ČSN EN 13 445-3 Unfired pressure vessels - Part 3: Design (in Czech). The first part contains the distribution of heat exchangers including an overview of the most commonly used media. The main part is aimed on the strength assessment of the heat exchanger based on the mentioned standard. The assessment equations are converted into an interactive document in Mathcad program. This allows quick evaluation of the new input parameters or easy implementation of the new parts of assessment. Checking the analytical evaluation is performed by numerical simulation in Ansys Workbench software with post-processing results according to given standard (stress categorization). The output is also the heat exchanger design documentation.
94

Konstrukční návrh trubkového rámu Formule Student / Formula Student Tubular Frame Design

Ratiborský, Pavel January 2014 (has links)
This thesis deals with the design of the tubular frame for the Formula Student car competition. The first part is a brief introduction to the competition and used variants of frames. The main part starts with a list of restrictions by the rules and other necessary installation components. The central part is devoted to the draft modifications and their assessment in terms of torsional stiffness by FEM analysis. The final section presents the resulting frame design with respect to the required properties. The work is concluded final evaluation.
95

Návrh zakřivení rámu dveřního křídla / Design of Door Frame Curvature

Merkl, Martin January 2015 (has links)
This diploma thesis deals with the design of door frame curvature, meant for rail vehicle. Flat glass is adhesively bonded onto the curved door frame and due to the elastic deformation the door frame bends backwards. Hence the door frame must be bend with reserve so that the elastic deformation is covered. Finite element analysis of currently manufactured door with constant curvatere has been carried out, with this analysis it has been checked that the chosen problem approach is suitable. Design of door frame curvature is then made for door frame with combined curvature (different for lower and upper part of door frame). The aim of this thesis was to design the curvature so that after glass is bonded onto it, the door frame will have the right dimensions.
96

Pevnostní analýza skříně alternátoru / Strength Analysis of Alternator Body

Kratochvíl, Petr January 2015 (has links)
In this diploma thesis is theoretically described and then practically performed stress analysis of alternator body, which in terms of traffic racing car often passes into disrepair. It is used reverse engineering method. The real part is converted to digital model and analysed using FEM calculation. Incoming data for FEM are obtained by experimental measurement on the car.
97

Hnací ústrojí Formule Student / Formula Student Drivetrain

Odehnal, Jakub January 2015 (has links)
This master‘s thesis describes design of Formula Student Drivetrain, car evolution Dragon 4 and Dragon 5. There is shown an overview of the drivetrain parts used in category Formula Student. On that basis is made the new concept of drivetrain for the each car. Major focus is placed on the design of the differential mounting and chain tensioning mechanism. For the selected components was made stress analysis by FEM.
98

Rozbor únosnosti vybraných svařovaných konstrukčních uzlů zatěžovaných staticky a cyklicky / Analysis of load capacity of selected welded structural joints under static and cyclic load

Peč, Michal January 2015 (has links)
Welding is a widely used method of connecting components because of its efficiency, great value and almost endless possibilities of join types. A great variability of geometrical configurations of welds is problematic due to the assessment of the weld joint. Depending on this topic this thesis was focused on the assessment of weld joints statically and cyclically. Work in the first part deals with the search of methods for evaluation of welds and depending on identified options is subsequently selected American standard AISC assessment of welded joints. The method is applied into FEA analysis and simple welded joints are evaluated. Using FEM are computed three examples on which a comparative analysis was performed. Comparisons were made with the analytical solution based on changes in the parameters of the computational model. The change is primarily related to material properties, mesh size and division of the weld on segments. On the basis of knowledge from analysis of simple joints, method was extended to more general welded joints with the possibility of determining the maximum loading force.
99

Návrh kompozitového směrového kormidla pro letoun L 410 NG / Design study of composite rudder of L 410 NG aircraft

Sokol, Filip January 2015 (has links)
This diploma thesis describes the design of composite structures rudder NG aircraft L410 based on the present Dural-weave construction. According to FAR 23 and circulars certification process is designed composite primary structure of the aircraft. It proposes the construction of a new rudder and selected materials design of a track composite materials. Program MSC Patran is this structure developed FEM model and using Nastran software Compost and the strength check.
100

Stanovení modálních charakteristik celokompozitového křídla s využitím MKP metod / Determination of modal characteristics of composite wings using FEM

Churý, Tomáš January 2015 (has links)
The diploma thesis deals with the creation of a detail FEM model all-composite wing of glider. Reduction created FEM model of the beam model. The models are calculated natural frequencies, vibration shapes wings and then subsequently compared the results of analyzes of both models.

Page generated in 0.0181 seconds