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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.
51

Model teplárenské sítě / Model of district heating network

Kolenčíková, Jana January 2020 (has links)
Subject of this thesis is district heating and heating network model design. Firstly, it de-scribes basic principles of heat supply and its elements. Secondly, computational model of heating network is created based on grid map of the network. The model contains proposed pipeline system and calculation of heat and pressure losses. Lastly, price map for heat con-sumption points, in dependence on heat losses, is presented.
52

Výroba krytu kloubu přívěsného vozíku / Manufacturing of Trailer Connecting Joint

Vahala, Jiří January 2021 (has links)
The project elaborated design of technology production of the trailer connecting joint from the deep drawing sheet iron 11 320. Pursuant to of the literary pursuit a problem of the deep drawing and calculation was designed progressive tool concatenate four operations. The lower ejectors are using for ejecting components. The drawing instrument especially made of non-standardised components and it is designed for use on a hydraulic press CTH 250, with nominal tensile force 250 kN. Drawing punch and drawing die are produced from alloyed instrumental steel 19 436 heat-worked according to drawing documentation. The technical and economical evaluation was focused on the forming cost, which is 2 922 893 CZK in total.
53

Drapák pro manipulaci s dřevem / Grab sampler for handling with wood

Kučera, Jakub January 2008 (has links)
The assignment of this thesis is a design of the wood manipulation grab to be used with small hydraulic cranes. The aim is to design a grab with lifting capacity of 2000 kg. The results of thesis can be used to diversify production of the company Agama a.s. Primarily, the grab should be lightweight, easy to manufacture and affordable.
54

Hydraulicko-elektrický systém zajišťující paralelitu chodu beranu vůči stolní desce hydraulického lisu / Hydraulic - electric system for parallel run of the ram in the face of table board of hydraulic press

Ošlejšek, Jan January 2008 (has links)
The aim of the diploma thesis is design construction and calculation of mechanism for parallel run of ram and adjusting position of ram in the face of table board of vertical hydraulic press. First part of thesis is about design calculation of vertical hydraulic press ram. Second part focuses on design calculation of ram and hydraulic cylinders. Third part solves design and construction of positioning hydraulic–electric system. Final fourth part analyses press construction from aspects of safeness, riskiness and economical factors.
55

Výroba tělesa držáku objemovým tvářením / Production of holder body by solid forming

Tichý, Pavel January 2009 (has links)
TICHÝ Pavel: Production of a holder body by solid forming. A Graduation Thesis of Master´s Studies, the 5th Year of Study, the School-year 2008/2009, FSI VUT Brno, Department of Machining, May 2009, Pages No. 80, Appendixes No. 9. The Graduation Thesis, elaborated in the framework of engineering studies, presents the technology of a body holder production carried out by solid forming. The material of the forged piece is steel Ck55 (12 060), the semi-finished product is of the 65 and its length is 12m. A yearly production is 122 000 pieces. Based on the studies of possible production technologies, the technology of production by die forging has been chosen, while a drop forging technology on a hammer HO630 and product-trim on a trimming press S160 have been used. For this option, the required technological calculations, the design of the die, the specification of production machines, which are necessary for forging process realization, have been carried out. An inspection of the propose forging by a private forge and a change in the geometry of the die have been carried out. A part of the study is a simulation forming process which is made in the software QFORM.
56

Technologický manipulátor udírny / Technological manipulator of smoking-chamber

Gajdušek, Jakub January 2010 (has links)
This work designs overall structural design of technological manipulator of smoking- chamber, which serves to move the trolleys with food between smoking and chilling chamber. Chambers are connected in a single device. Trolleys are considered with full and uniformly distributed load. Work includes a 3D model of equipment and production documentation.
57

Optimalizace procesu výroby vpusti / Optimization of production process of drain

Staněk, Vojtěch January 2012 (has links)
The project looks for a solution to optimalization of rotational deep drawn part with flange production. It deals with sewerage drain, which is produced by conventional tool to two deep drawing operations. The used material is austenitic Cr-Ni stainless steel 1.4301. Suitability of this material for deep drawing operations was considered by means of the tensile test and the Erichsen test. On the bases of these results, serializability of production and theoretic relationships for determination of number of deep drawing operations, it was decided upon one operation serial production, by conventional tool without attenuation thickness of sheet. Production will take place on hydraulic press Dieffenbacher PO250 with magnetic tool fastening. The deep drawing tool was designed and constructed. For series of 2 000 units per year the rate of return was calculated after 4,7 years, while using the punch from the current second deep drawing operation it was calculated after 3,4 years.
58

Zdvihací a manipulační zařízení pro podvěsné příslušenství letadla / Lifting and handling equipment for aircraft overhead Accessories

Kaše, Vladimír January 2012 (has links)
The thesis is dealing with the design proposal of mobile handling equipment for the aircrafts´ overhead accessory. In its initial part it describes different types of manipulators in use, following by several possibilities how to solve the problematics. The main part of the thesis is focused on concrete solution and construction of such manipulating facility, including the strength and control calculations.
59

Nová koncepce hydraulického pohonu CPB / New conception of hydraulic drive CPB

Bártek, Petr January 2013 (has links)
The main objective of this master's thesis is to design the new conception of hydraulic drive of the baling press CPB 100 with application of modern tendencies in the field of hydraulic engineering. This thesis contains design and calculations of new hydraulic drive, hydraulic circuit diagram and the list of hydraulic elements that are used. Moreover this thesis includes the design of an electrical control and the design of hydraulic block and manifold.
60

Koleno - kotníková ortéza s hydraulickým kolenním kloubem / Knee Ankle Foot Orthosis with Hydraulic Knee

Vávra, Jan January 2013 (has links)
This master thesis deals with the engineering design of a knee-ankle orthosis and subsequent implementation of a functional sample. The subject of the first part of the thesis is the design of internal shape of the shell on the basis of the patient's leg using CAD software. The second part deals with the design of the hydraulic knee. The knee joint with hydraulic controlled bending enables easier movement for patients who are not able to bring up stairs and uneven surfaces than existing joints. In the implementation was used SolidWorks 2012 and Geomagic Studio 12.

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