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1.
RAČUNALNIŠKO PROGRAMIRANJE IN MODELIRANJE DELOVNEGA STROJA
Klemen Gajšek, 2010, diplomsko delo/naloga

Opis: Za diplomsko nalogo sem si izbral temo na področju računalniškega modeliranja in programiranja. Kot praktični primer sem uporabil delovni stroj-cepilec polen, ki služi za cepljenje polen in uporabniku omogoča lažje delo z manj fizičnega napora. V nalogi sem se opredelil predvsem na konstruiranje samega stroja in na posamezne komponente, kako jih izdelati ter preračune, ki jih zajema takšen delovni stroj. V diplomski nalogi bom natančneje prikazal in opisal, s katerimi računalniškimi programi sem si pomagal pri modeliranju celotnega stroja in NC programiranju določene komponente stroja. Naredil sem tudi simulacijo delovanja stroja ter simulacijo poti orodja.
Ključne besede: Computer Aided Design, Constuctive Solid Geometry (CSG), volumetrično modeliranje, NC (numerical control), programiranje numerično krmiljenih strojev.
Objavljeno: 11.10.2010; Ogledov: 1495; Prenosov: 204
.pdf Celotno besedilo (2,96 MB)

2.
Dealing with redundancy and inconsistency in constructive geometric constraint solving
David Podgorelec, Borut Žalik, Vid Domiter, 2008, izvirni znanstveni članek

Opis: General constructive geometric constraint solvers are pre-processed by a degree-of-freedom analysis, which enables efficient graph decomposition and recombination. However, all these methods are based on the assumption that structural rigidity automatically assures solvability. In this paper, we show that this assumption fails in numerous, even the most basic, configurations. We introduce several simple but efficient rules aimed to additionally analyse solvability in such cases. Another novelty addresses conditional constraints between three or more geometric parts, rules for their simplification and a redundancy check. All these functionalities are built into our original 2D geometric constraint solver, based on concepts of rigid clusters and constrained-angle (CA) sets.
Ključne besede: geometric constraint solving, computer-aided design, constructive approach, redundant constraints
Objavljeno: 31.05.2012; Ogledov: 912; Prenosov: 54
URL Povezava na celotno besedilo

3.
Item modeling concept based on multimedia authoring
Janez Stergar, Andrija Šulić, Marko Brvar, 2008, izvirni znanstveni članek

Opis: In this paper a modern item design framework for computer based assessment based on Flash authoring environment will be introduced. Question design will be discussed as well as the multimedia authoring environment used for item modeling emphasized. Item type templates are a structured means of collecting and storing item information that can be used to improve the efficiency and security of the innovative item design process. Templates can modernize the item design, enhance and speed up the development process. Along with content creation, multimedia has vast potential for use in innovative testing. The introduced item design template is based on taxonomy of innovative items which have great potential for expanding the content areas and construct coverage of an assessment. The presented item design approach is based on GUI's - one for question design based on implemented item design templates and one for user interaction tracking/retrieval. The concept of user interfaces based on Flash technology will be discussed as well as implementation of the innovative approach of the item design forms with multimedia authoring. Also an innovative method for user interaction storage/retrieval based on PHP extending Flash capabilities in the proposed framework will be introduced.
Ključne besede: computer testing, computer based assessment, multimedia authoring, inovative item design, GUI, MySQL, e-training
Objavljeno: 31.05.2012; Ogledov: 1101; Prenosov: 23
URL Povezava na celotno besedilo

4.
Layered additive manufacturing in clinical medicine
Igor Drstvenšek, Nataša Ihan Hren, Tadej Strojnik, Vojko Pogačar, Tjaša Zupančič Hartner, Andreja Sinkovič, 2008, izvirni znanstveni članek

Opis: The use of contemporary technologies of Computer Assisted Design (CAD), combined with latest rapid prototyping, tooling and manufacturing, with traditional CT scanning techniques and high medical skills are used as instruments for better diagnostic visualization, simulation of procedures and treatment of patients with craniofacial deformities. They also improve the overall performances of medical and nursing staff thus influencing the quality of medical service. Patients with congenital defects, orthognathic deformities, deformities after malignancy treatment or after craniofacial traumatic injuries of different severities are of particular interests due to both aesthetic and functional alterations. The paper presents two clinical cases - a patient with scull bone defect after brain hemorrhage and brain edema as well as a patient with hemifacial microsomia treated by surgery followed by implantation of titanium angular implant prepared by means of computer tomography scans, Computer Aided Design and Rapid Manufacturing technologies.
Ključne besede: rapid prototyping, computer assisted design, maxilla, scull, reconstructive surgery
Objavljeno: 31.05.2012; Ogledov: 1301; Prenosov: 75
URL Povezava na celotno besedilo

5.
An intelligent system for structural analysis-based design improvements
Marina Novak, Bojan Dolšak, 2008, izvirni znanstveni članek

Opis: The goal of the research work presented in this paper was to collect, organize, and write the knowledge and experience about structural analysis-based design improvements into a knowledge base for a consultative advisory intelligent decision support system. The prototype of the system presented proposes possible design changes that should be taken into consideration to improve the design candidate according to the results of a prior stress-strain or thermal analysis. The system can be applied either in the design of new products or as an educational tool.
Ključne besede: computer-aided design, structural optimisation, knowledge based systems, decision support
Objavljeno: 31.05.2012; Ogledov: 1336; Prenosov: 16
URL Povezava na celotno besedilo

6.
7.
Uvajanje računalniško podprte proizvodnje
Uroš Trupej, 2013, diplomsko delo

Opis: V svoji diplomski nalogi sem se osredotočil na uvajanje računalniško podprte proizvodnje in kakšne prednosti prinaša. Računalniško podprta proizvodnja združuje moderno računalniško tehnologijo z naprednimi obdelovalnimi stroji in povezavo z informacijskim sistemom, kjer je človek še vedno vodilo napredka. Na teoretičnem primeru sem prikazal kakšne spremembe mora neko podjetje opravit in kakšne pogoje mora zadostiti, da lahko uvede računalniško podprto proizvodnjo.
Ključne besede: RIP - Računalniško integrirana proizvodnja, CIM - Computer integrated manufacturing, CAD - Computer Aided Design.CAM - Computer Aided Manufacturing, CAE - Computer Aided Engeneering, CAQ - Computer Aided Quality Assurance, CAPP - Computer Aideded Process Planning, CABS - Computer Aideded Business Sysytem, CAST - Computer Aideded Storagee and Transport, CNC - Computer Numerical Control, POS - Prilagodljivi obdelovalni stroji
Objavljeno: 16.10.2013; Ogledov: 1114; Prenosov: 154
.pdf Celotno besedilo (2,14 MB)

8.
GAJA
David Potočnik, Bojan Dolšak, Miran Ulbin, 2013, izvirni znanstveni članek

Opis: Although the designing of cutting-dies is a complex and experience-based process, it is poorly supported by conventional 3D CAD software. Thus, the majority of design activities, including the (re)modeling of those cutting die-components that are directly responsible for performing shaping operations on a sheet-metal stamping part, traditionally still need to be carried-out repetitively, separately, and manually by the designer. In order to eliminate some of these drawbacks and upgrade the capabilities of conventional 3D CAD software, this paper proposes a new methodology for the development of a parametric system capable of automatically performing a (re)modeling process of compound washer diesć cutting-components. The presented methodology integrates CATIA V5 built-in modules, including Part Design, Assembly Design and Knowledge Advisor, publication mechanism, and compound cutting die-design knowledge. The system developed by this methodology represents an 'intelligent' assembly template composed of two modules 'GAJA1' and 'GAJA2', respectively. 'GAJA1' is responsible for the direct input of the die-design problem regarding the shape, dimensions and material of the stamping part, its extraction in the form of geometric features, and the transferring of relevant design parameters and features to the module 'GAJA2'. 'GAJA2' interprets the current values for the input parameters and automatically performs the modeling process of cutting die-components, using die-design knowledge and the company's internal design and manufacturing standards. Experimental results show that the use of this system significantly shortens the modeling-time for cutting the die-components, improves the modeling-quality, and enables the training of inexperienced designers.
Ključne besede: parametrično modeliranje, rezalna orodja, računalniško podprti sistemi, inteligentno računalniško podprto konstruiranje, parametric modeling, cutting dies, computer-aided systems, knowledge-based design
Objavljeno: 10.07.2015; Ogledov: 1591; Prenosov: 17
URL Povezava na celotno besedilo

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