Department of Computer Science National Textile University P.O – 37610 Faisalabad Pakistan

Textile Product Simulation Report

Names Reg. No.

Hashim Ali 12-NTU-1059

Umar Farooq 12-NTU-1086

Adil Aslam 12-NTU-1047

Supervised By: Name: Ali Raza Shafiqat

Designation: Lecturer

Signature:

What is simulation? The imitation of the operation of a real-world process or system

over time…

o Most widely used tool (along LP) for decision making

o Usually on a computer with appropriate software

o An analysis (descriptive) tool – can answer what if questions

o A synthesis (prescriptive) tool – if complemented by other tools

Applied to complex systems that are impossible to solve mathematically

A Simulation of a system is the operation of a model, which is a representation of that system.

The model is amenable to manipulation which would be impossible, too expensive, or too impractical to perform on the system which it portrays.

The operation of the model can be studied, and , from this, properties concerning the behavior of the actual system can be inferred

Textile Simulation Textile is proposing the textile pattern and color by utilizing the

computer simulation system to get the quick decision-making of our customers without making a prototypes of textile fabric.

The computer simulation system we own can create the complete textile image by input the data of weft-warp yarns and weaving patterns.

“ModSimTex” Project The ModSimTex project is a European Commission Community

Research 7th Framework Programmed, Priority 4 NMP Project. The objective of the Project is to develop a system which will

reduce dramatically the cost to develop new technical textile products by reducing the time, energy and raw material waste during the production machinery setup process.

Its total budget is 4.5M€ and it will take 3 years and a half to complete.

The Project Consortium is composed by 3 Universities, 2 research centers and 7 companies from 6 different Member States.

Description of the Project

“ModSimTex” Project The textile industry faces important challenges regarding the production of

new advanced textile products. It is not possible to define the characteristics and parameters of a given textile structure due to the difficulty of measuring them. his situation makes very difficult to configure the machines involved in the production of such textiles; the typical practices consists in manufacturing samples and through trial and error adjust the processing operations until the desired characteristics are achieved in the final product.

With this procedure it’s very expensive to match the designer’s idea with the final product. The production setup takes a long amount of time and efforts and increases the cost of the final product. This is especially critical when a company is trying to develop new technical textiles.

The vast majority of the existing systems capable to simulate textile products are limited to the visual representation, without any kind of mechanical or physical evaluation of the properties of the textile structures.

This virtual construction system will allow the prediction of the multifunctional textile performance before the actual textile is manufactured allowing the settings of the production machines to be either an input or an output of the computation thus reducing dramatically the effort and cost to produce small batches or develop a new advanced technological textile.

Advantages of simulation When mathematical analysis methods are not available, simulation may

be the only investigation tool When mathematical analysis methods are available, but are so complex

that simulation may provide a simpler solution Allows comparisons of alternative designs or alternative operating

policies Allows time compression or expansion

CAD-CAM for Textile Products A wide variety of design in fabrics is based on the combination of yarns with

different colors or printing designs. To be successful in this task nowadays is directly related with computer design. This subject deals with different programs depending on the process required to design, it will be studied both, the one for weaving technology (to combine yarns and structures) and the one for digital printing.

Finally, designs created by the student/developer will be used in a program to simulate different environments in 3D such as a living room (armchair, curtains, carpet, etc.).

Designing Marvelous Designer Workflow

To get the idea how clothing look like when creating clothes in Marvelous Designer, the moreaccurate to real world patterns and designs you achieve, more successful your modeling will be.Therefore I did quite a bit of research on game called battle field 4, Iraq military uniform and howeach piece of clothing is constructed.

Jacquard CAD Software

Jacquard CAD Software has powerful graphic design and perfect textile process. Jacquard CAD software is suitable for labels, silk, towel carpet, tie, furnishing cloth jacquard weaving etc. It is the earliest enterprise to specialize in jacquard CAD software research and promotion.

It is the top sale products in the domestic market and also has the widest influence that beloved by so many customers. It won reward of National Science and Technology Progress and this technology has reached the world advanced level.

Main functions The technique for scanning and connection and also slant correction. ----Draw all kinds of geometric figures as circle, ellipse, line, mimic curve

etc. ----Copy. It can rotate any angles and change warp and weft. ----Efficient editor can add and delete any warp and weft and also divide

and combine them. ----Magnification the hardware. Zoom lens and inspect everywhere. ----Automatic and manual control of the length of yarns. ----Weave single layer fabric and double layers of fabric and also complex

designs. ----Customers can use the standard organization database any time. Editing

and store the composite organization according to their need. ----Accurate analysis of weaving with ep /jc5 etc. ----Strongest design and message-processing function..

A Virtual Garment Design and Simulation System Garment design consists of defining the cloth model and

the garment construction process, in turn of the construction of garment patterns and the definition of the seaming points between each panel.

To simulate the garment, the system must be integratednumerically. The positions of the particles making up thecloth are calculated over time considering the forces acting on the cloth.

OptiTex 3D Runway Designer

OptiTex 3D Runway fashion software is a realistic cloth simulation / cloth modeling software system based on accurate CAD patterns and real fabric characteristics.

Using OptiTex™ 3D Garment Draping and 3D Visualization software system - designers, pattern makers, and retailers can visualize any pattern modifications instantly in full 3D.

Features

Using OptiTex 3D Runway fashion software will reduce product development time,.

Also reduced the cost of multiple iterations of sample garment production. Enhance quality of products due to use of accurate modeling system

software Analyze fabric behavior, proof-fitting assumptions, and provide a graphical

collaboration tool for all involved in the product development process.

Lectra - Modaris 3D Fit

The integration of 3D virtual prototyping and product visualization solutions into the collections development and marketing cycle. The fruit of eight years of development, Modaris 3D Fit, Lectra 3D virtual prototyping solution, associates 2D patterns, fabric information and 3D virtual models. This innovative solution – which constitutes a major CAD breakthrough.

Features

Enables simulation and validation of styles of fabric. Enables simulation and validation of color ranges in fabrics It allows pattern designers to check garment fit in various fabrics and sizes Virtual review of prototypes between brands and subcontractors, and the

presentation and validation of collections elements. Checking fitting Using its powerful visualization and realistic materials rendering tools,

Modaris 3D Fit enables the fitting of your models to be verified using virtual three-dimensional models. This unique solution enables garment fitting to be verified in different materials and sizes:

o Check comfort.

o Check balance lines.o Draw lines and verify measurements

Style and collection validation By capitalizing on the power of 3D simulations and by enabling virtual

prototype review, Modaris 3D Fit enables the various players involved to validate garment styles and collections.

Modaris 3D Fit allows a virtual review of the prototypes in three dimensions, in order to carry out the adjustments required, as well as an initial definition of each product's technical specifications.

In addition, using Modaris 3D Fit, you can validate styles, materials, color ranges, motifs, etc. for each garment directly on screen, before the first physical prototype is produced.

Simulation of Fabrics Presenting your concepts in a realistic way. You can vary the different parameters of a design or edit the design and

observe the result instantaneously. Simulation is further enhanced by using yarns created or scanned directly

into the library. The yarn editor allows you to work on parameters such as twist, colors, thickness, etc. to generate chenille, fancy, slabs, melanges, twisted, and all types of yarn effects.

ScotWeave Dobby Designer

ScotWeave Dobby Designer is the most comprehensive CAD tool for woven design currently available. Based around an intuitive visual design approach the software is simple to use, quickly to learn, and produces accurate stunning results. Key features include:

Uses Yarn Designer for solid, twist, mixture and fancy yarns including Pantone® colors

Fast easy creation of warp and weft (fill) patterns Easy input of weave, draft and peg plan data Library of over 21,000 weaves supplied free with the system Import weave data from standard image files (TIFF, BMP etc.) Automatic float checking and breaking feature Skip dents, cramming, extras (ditsies), double cloths. Changes to design are viewed immediately on screen in real-time Colourway feature for fast creation of sample blankets Kaleidoscope & Pattern Generator for automatic pattern creation Automatic "centering" of warp and/or weft pattern within loom width Weave 3D to view the fabric structure as a true 3D image Drape 3D to drape the fabric onto a true 3D model Auto-drape to view the fabric in one of several drape scenes Fabric finishing simulations to mimic cloth look

Yarn-Level Simulation of Woven Cloth

The large-scale mechanical behavior of woven cloth is determined by the mechanical properties of the yarns, the weave pattern, and frictional contact between yarns.

Using standard simulation methods for elastic rod models and yarn-yarn contact handling, the simulation of woven garments at realistic yarn densities is deemed intractable. This paper introduces an efficient solution for simulatingwoven cloth at the yarn level.

Woven cloth is formed by interlacing yarns, typically two sets of orthogonal yarns called warp and weft. Interlaced yarns undergo friction forces at yarn-yarn contacts, and this friction holds together the woven fabric.

Large-scale mechanics of woven cloth are dictated by the fine-scalebehavior of yarns, their mechanical properties, arrangement, andcontact interactions.

Cloth Simulation in 3ds Max

Autodesk 3ds Max and Autodesk 3ds Max Design software provide powerful, integrated 3D modeling, animation, rendering, and compositing tools that enable artists and designers to more quickly ramp up for production.

Autodesk 3ds Max has grown to be one of the top 3D animation software options, focused on providing a powerful modeling architecture for graphic designers.

Features

3D Modeling Efficiently create parametric and organic objects with polygon, spline, and

NURBS-based modeling features. Unleash your creativity with more than 100 advanced polygonal modeling

and freeform 3D design tools in the Graphite modeling toolset.

Shading and Texturing

o Perform creative texture mapping operations, including tiling, mirroring, decal placement, blurring, spline mapping, UV stretching, and relaxation.

o Design and edit complex shading hierarchies with the Slate material editor, taking advantage of extensive libraries of textures, images, and procedural maps.

o Access up to 1,200 material templates and seamlessly exchange material data between supporting Autodesk applications with the Autodesk Material Library.

Animation Perform procedural animation and rigging with CAT (Character Animation

Toolkit), biped, and crowd animation functionality. Wire one- and two-way relationships between controllers to help create

simplified 3D animation interfaces. Animate CAT, biped, and 3ds Max objects in layers to tweak dense motion

capture data without compromising underlying keyframes

YARN Scheduler Load Simulator (SLS) LS is a tool that simulates load corresponds to a large scale YARN cluster in

a single machine. It helps researchers and developers to prototype new scheduler features and predicts the performance and behavior over the large cluster. The size of the cluster and application load could be configured from configuration files. The simulator will produce real-time metrics for:

Resource usage for the whole cluster and each queue Detailed application execution trace for analyzing scheduler behavior in

terms of throughput, fairness, a job's turnaround time Key metrics of the scheduler algorithm, such as time of each scheduler

operation

Weft Knitting

Weft Knit Tube Generator is a program, which parametrically creates 3D presentation of plain weft knitted tubes. Main application of this program is for generation of finite element mesh through the yarn volume or yarn surface for FEM or CFD simulations in the medical applications.

Weft Knit Geometry Creator generates the 3D presentation of a flat plain weft knitted structure with the same applications as the Tube Generator.

Fibersim Software The Fibersim portfolio of software for composites engineering is used by

numerous leading manufacturers in the aerospace, automotive, marine, and wind energy industries. Fibersim supports all of the unique and complex design and manufacturing methodologies necessary to engineer innovative, durable, and lightweight composite products and parts.

It's also the only comprehensive software that addresses the entire composites engineering process — from conception, laminate definition, and ply creation through simulation, documentation, and manufacturing. Fibersim is integrated into the leading commercial 3D CAD systems to help you capture a complete digital composite product definition. And Fibersim goes beyond CAD to create a customized environment that enables you to 'work how you think' when designing innovative products that create a competitive advantage.

Fibersim benefits Eliminate errors and enable increased part optimization With Fibersim 14, you can easily perform optimization loops between CAE

pre- and post processing and Fibersim with zone-based CAE exchange. The ability to exchange composite definitions between an analyst and designer ensures efficiency and eliminates errors to provide a way to achieve composite part optimization. Optimization of composite parts leads to reduced product weight, material costs and production costs.

Achieve design optimization and make design changes quickly Fibersim 14 allows you to achieve designs and make changes faster with

multi-ply – a unique, automated specification-driven design methodology. You can define specifications for material, material groups, drop-off profiles and drop-off spacing which are associated to different base shapes. The specifications manage the creation of the ply boundary geometry and definition. As a result, you can quickly make changes during the iterative design process, increasing productivity by up to 80 percent.

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Sewing with the Garment Design System The process chain for virtual try-on and final visualization consists of several

steps. First, the automatic prepositioning, providing a good initial simulation state for the cloth-patterns with according seam information. Second, the physicalsimulation calculating the drape of the garment, where material data measured are integrate

Working with 3Ds Max. To create a good quality scene or image using 3Ds max there’s some

requirement that must exist in the scene in order to produce a good product.

The object. Materials. Lights. Cameras. Animations.

Objects

The objects that can be represented in the scene can be predefined primitives and models or user designed models.