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1.
Thermal-mechanical sensory properties of hot-air welded textile transmission lines
Simona Jevšnik, Li Yi, Junyan Hu, Han Xiao, Wu Xinxing, Anthony Primentas, 2016, original scientific article

Abstract: Hot air welding technology is one of the new promising techniques for integrating conductive yarns on or into fabrics, besides weaving, knitting, printing, coating or inserting conductive yarns by the sewing and/or embroidery processes. A new issue related to the introduction of hot air welding technology for making e-textile transmission lines, i.e., the mechanical-thermal sensory properties of hot air welded e-textile transmission lines, is investigated in this study. Fabric Touch Tester (FTT) was used to evaluate thermal, compressive and bending properties of hot air welded transmission lines. The results show that the bending of welded fabric increased after hot air welding in both warp and weft directions. Furthermore, the maximum thermal flux and thermal conductivity of welded specimens decreased in comparison to the substrate fabric.
Keywords: textile transmission lines, hot-air welding, fabric touch tester, conductive yarns, e-textile transmission lines, thermal properties
Published: 01.09.2017; Views: 593; Downloads: 327
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2.
Designing the myth: pattern language to assist with the designing of garments at the drawing stage
Jure Purgaj, Simona Jevšnik, 2016, original scientific article

Abstract: This article presents and introduces a new approach for researching into fashion, textile and clothing design. Following Christopher Alexander’s understanding of a pattern language the aim is to present and propose a pattern language which assists with the visualisations and designs of garments that use narrative, non-visual forms as forms of inspiration. To visualise the descriptions of the Slovenian mythological creatures, a guided method for designing the garments was developed, based on fashion design practice and different proposed mythological patterns. Furthermore, the design components during the drawing process were defined and analysed. The above-mentioned type of research is important in order to better understand the phases in the design process during drawing. On the basis of the gained results it can be concluded that the proposed pattern language and the guided method have great potential for creating new interdisciplinary knowledge. This developed method for visualising garments’ forms was tested on Slovenian mythological creatures but it could be used with any written texts. Moreover the method can also be used for educational purposes and further research into fashion design processes because it provides a classified environment that can be easily observed, analysed, and discussed.
Keywords: fashion design practice, visualisations, mythology, pattern language, narrative inspiration
Published: 31.08.2017; Views: 675; Downloads: 344
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3.
Review of computer models for fabric simulation
Simona Jevšnik, Fatma Kalaoğlu, Sena Terliksiz, Jure Purgaj, 2014, review article

Abstract: 3D computer technologies are closely linked to all textile fields ranging from the designing and constructing of fabrics and garments, virtual human body presentations, interactive virtual prototyping to virtual fashion shows and e-trading. This paper offers a review of frequently used methods for fabric simulation. The review is divided into two parts. The first part of the paper comprises currently used techniques, followed by the presentation of basic terms and fabric parameters required for fabric simulations. The second part discusses the approaches and methods for constructing computer models of fabrics. In conclusion, the list of used techniques and parameters for defining a computer fabric model are presented together with given future guidance.
Keywords: CAD/CAM in textiles, fabric simulations, fabric models
Published: 21.12.2015; Views: 789; Downloads: 411
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Ocenjevanje prileganja 3D virtualno izdelanih prototipov kril telesu
Tanja Pilar, Zoran Stjepanović, Simona Jevšnik, 2013, original scientific article

Abstract: Cilj raziskave, izvedene v okviru magistrske naloge, je bil razviti in analizirati uspešnost procesa 3D prototipov kril, izdelanih s sodobnimi računalniškimi tehnologijami, in ga primerjati s klasičnim procesom prototipiranja. V ta namen smo najprej izvedli proces konvencionalnega razvoja prototipa šestih kril, ki je vseboval naslednje faze: konstrukcija in modeliranje krila, krojenje, fiksiranje; temu sledita fazi šivanja in likanja. Na koncu je bilo izvedeno pomerjanje in ocenjevanje prileganja realnemu manekenu. Na drugi strani so bili enaki računalniško modelirani krojni deli kril uporabljeni pri računalniškem razvoju prototipov, kjer je celoten razvoj prototipa potekal v virtualnem okolju, pri tem pa sta bila uporabljena dva virtualna modela telesa: (a) skenirano in (b) parametrično. Izdelava prototipov je za oba modela potekala v enakih fazah: tridimenzionalno zajemanje telesnih mer, priprava modela telesa, priprava podatkov za računalniški zapis lastnosti tekstilij, definiranje šivov in položajev krojnih delov ter simulacija prileganja oblačila telesu. Temu je sledilo ocenjevanje prileganja kril telesu. Postavljen je bil postopek ocenjevanja prileganja prototipov kril. Na koncu je bila izvedena primerjava prileganja oblačila telesu med konvencionalnim in računalniško podprtim prototipiranjem kril. Raziskava kaže, da je za uspešno virtualno prototipiranje kril potrebno dobro poznavanje parametrov tekstilij, ki se določijo posameznim krojnim delom oblačila, ter ustrezna izbira virtualnih teles, da se čim bolj približamo želenemu videzu virtualnih prototipov oblačil.
Keywords: 3D prototipiranje, krila, prileganje oblačil, virtualni modeli teles
Published: 10.07.2015; Views: 942; Downloads: 74
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6.
Strains and stresses of workers caused by exposure to noise
Andrej Polajnar, Nataša Vujica-Herzog, Borut Buchmeister, Simona Jevšnik, 2012, original scientific article

Abstract: This paper examines basic aspects of determining strain due to noise on workers in an industrial environment. Technological development enables better working conditions which then demands changes in methods for measuring strain and stress loadings. A modified method is now presented since the existing method for determining strains caused by exposure to noise is proving insufficient. The objective of the modified method is to eliminate the shortcomings of the existing method by taking into account the complex effects of noise in specific working environments. The effects of exposure to noise will be assessed by using a new strain-assessment procedure which incorporates the effects of nature of noise, characteristics of noise, current standards on protection from noise, and the influence of noise on different jobs. This new noise-assessment approach uses new measurement techniques based on tonality and impulsive noise corrections. The modified method has been tested at various workplaces in the metal-working industry. A comparison of the results obtained by using both methods confirms the suitability of the modified method, thus providing a more complete approach to evaluating strain due to noise.
Keywords: ergonomija, hrup na delovnem mestu, strain, stresses, ergonomic coefficient, noise, impulsive noise correction, tone correction
Published: 10.07.2015; Views: 645; Downloads: 19
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7.
Oblikovanje delovnega mesta za robkanje z upoštevanjem antropometrije
Nejc Gorinšek, 2012, undergraduate thesis

Abstract: Osnovni cilj diplomskega dela je raziskava in oblikovanje delovnega mesta za robkanje v podjetju SŽ – Oprema Ravne d.o.o. Delovno mesto je bilo preoblikovano na podlagi upoštevanja antropometrije delavke, saj smo s tem zmanjšali možnosti za nastanek poškodb in bolezni delavke. Pri raziskavi so bile opravljene različne analize obremenitev (vidne, slušne, toplotne, psihološke, mehanske…) in uporabljeni ergonomski metodi telesnih položajev (RULA, OWAS), ki so pripomogle h končnim rezultatom. Na podlagi pridobljenih rezultatov smo nato našli rešitve, s katerimi smo odpravili nepravilnosti na proučevanem delovnem mestu, kar je potrdila tudi končna analiza.
Keywords: antropometrija, ergonomija, oblikovanje delovnega mesta, RULA, OWAS.
Published: 14.11.2012; Views: 1675; Downloads: 276
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8.
The advance engineering methods to plan the behaviour of fused panel
Simona Jevšnik, Jelka Geršak, Ivan Gubenšek, 2005, original scientific article

Abstract: The purpose of this paper is to analyse some mechanical properties and parameters of drapability using different methods from two different points of research area: knowledge bases and numerical modelling using the finite element method. The approach consists of analysing some mechanical properties and parameters of drapability using different methods from two different points of research areaČ knowledge bases and numerical modelling using the finite element method. The knowledge bases, named FP_B-1 and FPO_B-2, were used to analyse the bending rigidity of fused panels. The numerical model of fused panel NMFP is used to analyse parameters of drapability. Findings - Based on the analyses of bending rigidity and draping of fused panels the conclusions indicate the significance of interaction between mechanical properties and parameters of drapability of thefused panel to garment appearance. Furthermore, the methods used present a computer approach to the study of the fused panel properties important for thecomputer-based engineering and the presentation of real behaviour of all aspects of clothes. This numerical model of a fused panel enables a 3D observation of this aspect of clothes which is a behaviour, very important contribution to the computer planning of the behaviour of produced clothes. Originality is in a better understanding of how to construct fused panels in clothing.
Keywords: clothing engineering, fabric mechanics, fusible interlining, fused panels, drapability, knowledge base, FEM
Published: 01.06.2012; Views: 1269; Downloads: 89
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9.
3D virtual prototyping of a ski jumpsuit based on a reconstructed body scan model
Zoran Stjepanović, Andreja Rudolf, Simona Jevšnik, Andrej Cupar, Vojko Pogačar, Jelka Geršak, 2011, original scientific article

Abstract: 3D virtual prototyping become a topic of increasing interest of both computer graphics and computer-aided design for apparel production. These technologies are especially important when a garment prototype should be developed for a special purpose, such as ski-jumper suit. Namely, shape and size of a jumpsuit need to be individually adapted to each ski-jumper according to the exact requirements set by FIS (Fédereation Internationale de Ski). The FIS requirements change annually or even more often in order to assure ski-jumpers' safety during competitive ski jumps. The conventional body measurement technique and development of ski-jumpers pattern are time consuming. In order to develop an accurate and rapid design, as well as an adaptable and quickly changeable jumpsuit, different modern technologies were used. The obtained virtual prototypes of a skijumper and a jumpsuit enable both - fast re-modelling according to FIS rules and expeditious development and/or simulations of a jumpsuit. All these measures are taken to improve the aerodynamic design of a suit and jumper's result. The body scanning technology represents a great potential for textile industries and above all for producers of garments. It enables fast and reliable capture of 3D body data and extraction of precise measurements needed for design, construction, visualisation and animation of garments on virtual mannequins. However, there are also some problems related to the scanned body models, caused by the scanning technique. In this article we are discussing the techniques for reconstruction of the body models and its results using the example from one of the competitive sports clothing - ski-jumper suit. In our study we have used different computer graphics programmes in order to reconstruct and prepare the 3D body scan model for successfully importing it into OptiTex CAD programme. The aim of this research was to enable effective 3D virtual garment prototyping using the reconstructed body scan model.
Keywords: virtual prototyping, ski jumpsuit, 3D body scanner, 3D software packages, Optitex
Published: 01.06.2012; Views: 1746; Downloads: 30
URL Link to full text

10.
Some aspects of fabric drape
Darja Žunič-Lojen, Simona Jevšnik, 2007, original scientific article

Abstract: Drape is one of the important factors influencing the aesthetics and functionality of fabrics. Therefore, investigation into drape parameters is important for analysing its behaviour. Drape parameters were investigated from different aspects using the Cusick Drape meter and Image Analyser. Firstly, the influence of time on the drape coefficient and number of folds was studied over 24 hours. Usually, drape is considered as a static, time-independent problem. However, this investigation shows that the drape coefficient of a fabric changes si-gnificantly over a longer time period. Furthermore, the comparison of drape parameters is shown using samples with two different diameters. The larger samples have smaller drape coefficient than those with smaller diameters, and their drape is less changeable over time. Basically, the three-dimensional fabric drape is not an independent fabric property, there-fore, the connection between bending rigidity and drapecoefficient was studied. The last aspect of this investigation was the repeatability of drape measurements, and the establish-ment of the required number of measurements for drape coefficient and fold numbers.
Keywords: fabric drape, drape parameters, time-dependence, bending rigidity, measurement repeatibility
Published: 31.05.2012; Views: 1351; Downloads: 39
URL Link to full text

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