Search results

1 – 10 of 22
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 1 August 1996

J. Ascough, H.E. Bez and A.M. Bricis

Uses Newmark’s method to carry out a time‐stepping finite element analysis to predict the behaviour of a cloth garment as it falls from an initial horizontal position to a final…

456

Abstract

Uses Newmark’s method to carry out a time‐stepping finite element analysis to predict the behaviour of a cloth garment as it falls from an initial horizontal position to a final position draped around a human body form. Bases the finite element model on a simple beam element, in order to minimize the computational time. Accounts for large displacement behaviour by including the element geometric stiffness. Bases the body form on anthropomorphic data produced by a shadow scanner. Enlists a novel scheme to model the contact between the cloth and the underlying body form. Uses the finite element model to provide data for an animated display and finds that it produces sufficiently realistic results for the garment designer’s purposes.

Details

International Journal of Clothing Science and Technology, vol. 8 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Access Restricted. View access options
Article
Publication date: 4 January 2021

Yuxue Jin, Jie Geng, Zhiyi He, Chuan Lv and Tingdi Zhao

Virtual maintenance simulation is of great importance to help designers find and avoid design problems. During its simulation phase, besides the high precision requirement…

220

Abstract

Purpose

Virtual maintenance simulation is of great importance to help designers find and avoid design problems. During its simulation phase, besides the high precision requirement, collision detection must be suitable for all irregular objects in a virtual maintenance environment. Therefore, in this paper, a collision detection approach is proposed based on encapsulation for irregular objects in the virtual maintenance environment.

Design/methodology/approach

First, virtual maintenance simulation characteristics and several commonly used bounding boxes methods are analyzed, which motivates the application of encapsulation theory. Based on these, three different encapsulation methods are oriented to the needs of simulation, including encapsulation of rigid maintenance objects, flexible maintenance objects and maintenance personnel. In addition, to detecting collisions accurately, this paper divides the detection process into two stages. That is, in the first stage, a rough detection is carried out and then a tiny slice space is constructed to generate corresponding capsule groups, which will be redetected in the secondary stage. At last, several case studies are applied to illustrate the performance of the methodology.

Findings

The automatic construction algorithm for bounding boxes can be adapted to all forms of objects. The number of detection primitives are greatly reduced. It introduces the reachable space of the human body in maintainability as the collision search area.

Originality/value

The advantages of virtual maintenance simulation could also be advantageous in the industry with further studies. The paper believes this study is of particular interest to the readers of your journal.

Details

Assembly Automation, vol. 41 no. 1
Type: Research Article
ISSN: 0144-5154

Keywords

Access Restricted. View access options
Article
Publication date: 5 September 2016

Vajiha Mozafary and Pedram Payvandy

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in process of…

529

Abstract

Purpose

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in process of fabric simulation in mass spring model are discussed and compared.

Design/methodology/approach

This paper reviews and compares presented mesh types in mass spring model, forces applied on model, super elastic effect and ways to settle the super elasticity problem, numerical integration methods for solving equations, collision detection and its response. Some of common methods in fabric simulation are compared to each other. And by using examples of fabric simulation, advantages and limitations of each technique are mentioned.

Findings

Mass spring method is a fast and flexible technique with high ability to simulate fabric behavior in real time with different environmental conditions. Mass spring model has more accuracy than geometrical models and also it is faster than other physical modeling.

Originality/value

In the edge of digital, fabric simulation technology has been considered into many fields. 3D fabric simulation is complex and its implementation requires knowledge in different fields such as textile engineering, computer engineering and mechanical engineering. Several methods have been presented for fabric simulation such as physical and geometrical models. Mass spring model, the typical physically based method, is one of the methods for fabric simulation which widely considered by researchers.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Access Restricted. View access options
Article
Publication date: 24 February 2012

Savvas Vassiliadis, Argyro Kallivretaki, Paraskevas Frantzeskakis and Christopher Provatidis

The purpose of this paper is to focus on the development of a thorough method for the macromechanical analysis of fabrics.

498

Abstract

Purpose

The purpose of this paper is to focus on the development of a thorough method for the macromechanical analysis of fabrics.

Design/methodology/approach

The homogenization method was implemented for the generation of continuum equivalent model for the plain woven structure. Keystone of the method is the mesomechanical analysis of the textile unit cell for the evaluation of the apparent properties and the generation of an equivalent macromechanical model supporting the mechanical performance of the structure. The finite element method (FEM) using beam elements was applied for the mechanical analysis of the discrete model of the unit cell and the FEM using shell elements was applied for the analysis of the continuum macromechanical model.

Findings

The tensile, shear and bending test of the unit cell were simulated. The constitutive equations of the continuum model were formed considering equivalent performance with the discrete model.

Originality/value

The reliability of the equivalent model in tensile, shear (in‐plane) and bending (out‐of‐plane) deformation was achieved even for asymmetric woven structures. The low computational power demanded for the meso‐ and macro‐mechanical modelling and analysis is a beneficial feature of the proposed method.

Details

International Journal of Clothing Science and Technology, vol. 24 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Access Restricted. View access options
Article
Publication date: 1 October 2002

V. Sidabraite and V. Masteikaite

Undesirable effect of asymmetric drape often occurs when cutting patterns of flared skirt on cross. Out of this reason garment seams twist toward the front or back or folds form…

641

Abstract

Undesirable effect of asymmetric drape often occurs when cutting patterns of flared skirt on cross. Out of this reason garment seams twist toward the front or back or folds form different shapes on each side of the garment and this lowers garment aesthetic appearance. The new measuring procedure for asymmetric skirt drape near the side seam, based on bottom traces geometry, was developed in this paper. The experiment with four‐gored skirts of six lightweight fabrics was made. It was found that asymmetric drape depends on combination of grain lines directions of front and back panels of a skirt. There were made general conclusions relating skirt asymmetric drape with various fabric characteristics, such as bending rigidity, extensibility, shear rigidity, fabric weight and drape coefficient in this article. According to developed measuring procedure a final objective evaluation of skirt asymmetric drape rate will be done further.

Details

International Journal of Clothing Science and Technology, vol. 14 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Access Restricted. View access options
Article
Publication date: 3 May 2010

Georgios T. Zoumponos and Nikos A. Aspragathos

Some areas of the apparel industry, such as folding and sewing, are still labor intensive. The purpose of this paper is to present a new fuzzy visual servoing strategy for the…

399

Abstract

Purpose

Some areas of the apparel industry, such as folding and sewing, are still labor intensive. The purpose of this paper is to present a new fuzzy visual servoing strategy for the folding of fabric strips by robotic manipulators.

Design/methodology/approach

Three stages of the folding task are distinguished experimentally, the initial laying, the true folding, and the final laying. An indirect visual servoing fuzzy system, employing two cameras, is developed to guide the robot along each of the stages.

Findings

The proposed scheme manages to successfully fold some of the tested materials. The experimental results are promising and well within the limitations posed by both the employed equipment and the nature of the handled materials.

Research limitations/implications

This study is limited to rectangular strips of fabrics and does not consider the speed of the process.

Practical implications

The resulting system provides a stepping stone for the introduction of automation to currently labor‐intensive areas of the apparel industry.

Originality/value

The separate folding stages reduce the complexity of the overall system and the introduced visually extracted features allow a closer monitoring of the process.

Details

Industrial Robot: An International Journal, vol. 37 no. 3
Type: Research Article
ISSN: 0143-991X

Keywords

Access Restricted. View access options
Article
Publication date: 19 September 2024

Chen Liu and Huafeng Feng

To investigate whether the actual effects of eight drape characteristics of virtual fabrics can be manifested in the Style 3D software.

27

Abstract

Purpose

To investigate whether the actual effects of eight drape characteristics of virtual fabrics can be manifested in the Style 3D software.

Design/methodology/approach

Image analysis was conducted using MATLAB software to obtain the drape characteristics of virtual fabrics. Pair the drape characteristics of the real and virtual fabrics for difference. The S-W method was used to conduct a normality test to obtain the correlation of paired samples. A paired sample t-test was performed to obtain the significance values.

Findings

The simulation restoration performance of the drape coefficient, number of undulations, maximum undulation angle, minimum undulation angle and undulation angle uniformity was good. However, there are differences in the simulation performance of the other three indicators: maximum undulation amplitude, minimum undulation amplitude and undulation amplitude uniformity compared to the drape characteristics of real fabrics.

Originality/value

Provides reference value for the improvement of Style3D software in virtual fabric simulation and finds the main influential parameters and their impact levels that contribute to the realistic representation of virtual fabrics in software. It provides a theoretical basis for course teaching in digital fashion.

Details

International Journal of Clothing Science and Technology, vol. 37 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Access Restricted. View access options
Article
Publication date: 14 November 2016

Isabelle Muratore

Considering that retailers view impulse buying as an important component of their business (around 75 per cent of the purchases are unplanned) and considering also that teens…

4534

Abstract

Purpose

Considering that retailers view impulse buying as an important component of their business (around 75 per cent of the purchases are unplanned) and considering also that teens often do some shopping in autonomy and represent an important financial power, the purpose of this paper is to fill the lack of studies concerning adolescent consumers impulse shopping behaviours. This paper investigates the relationships between the positive (prestige sensitivity, price quality schema) and the negative (price consciousness, value consciousness, price mavenism, sales proneness) role of price in teens’ impulse buyings.

Design/methodology/approach

The test of the hypotheses has been achieved on a sample of 325 French teens (age between 14 and 18) using MANOVA. Previously, respondents were split in two groups which are impulsive buyers and non-impulsive buyers.

Findings

Findings show clearly differences between teens’ impulsive buyings and teens’ non-impulsive buyings. Teens’ as impulsive buyers possess more prestige sensitivity, price-quality schema, price mavenism, sale proneness and less price consciousness and value consciousness than non-impulsive buyers. Moreover, females adolescents are more inclined to be impulsive buyers than males adolescents.

Originality/value

Not only it is one of the rare studies that investigates on teens’ impulsive buying but above all, it is the only study that takes into consideration the role of price perception, while a price has to be paid in order to buy.

Details

International Journal of Retail & Distribution Management, vol. 44 no. 11
Type: Research Article
ISSN: 0959-0552

Keywords

Access Restricted. View access options
Book part
Publication date: 26 March 2024

Neha Verma

Purpose: This chapter is based on risk management of the insurance sector with reinsurance as its linchpin. Such is the importance of the insurance sector that its risk management…

Abstract

Purpose: This chapter is based on risk management of the insurance sector with reinsurance as its linchpin. Such is the importance of the insurance sector that its risk management must be considered.

Need for the study: Risk management of various sectors is gaining much attention. The insurance sector, known to manage the risk of multiple sectors, also requires its own chance to be controlled with the same or even more intensity. Considering the importance of reinsurance coupled with the dependency of primary insurers on reinsurers and the absence of research on reinsurers, the need to conduct a comprehensive study on the topic is felt.

Methodology: It will be a conceptual chapter based on the rigorous literature on the topic integrated with the researcher’s insights to bring forth the framework of reinsurers for the readers.

Findings: It is found that insurers can themselves become the victims of the financial crisis in case they insure risks that surpass their economic boundaries. Not only this, the failure of insurance companies can have a ripple effect on the country’s economy. Therefore, insurers must possess financial resilience; to remain so, they need to have prudent management of the risk they are undertaking.

Practical implications: The study covers a relatively less researched area of reinsurance and hence has a vast scope of research in the future. The study would be helpful to stakeholders like regulators and primary insurers. It will unveil the paradigm of reinsurance and enlighten the stakeholders on how to use it effectively.

Details

The Framework for Resilient Industry: A Holistic Approach for Developing Economies
Type: Book
ISBN: 978-1-83753-735-8

Keywords

Access Restricted. View access options
Article
Publication date: 23 August 2013

Natalie Brici, Chris Hodkinson and Gillian Sullivan‐Mort

There have been recent calls for research into the impulse shopping behaviours of adolescent consumers – an important topic because adolescents are: an increasingly important…

3066

Abstract

Purpose

There have been recent calls for research into the impulse shopping behaviours of adolescent consumers – an important topic because adolescents are: an increasingly important market segment; a segment which has recently been empowered by the availability of easy credit; and which is increasingly targeted by strategic marketing collateral. This paper responds to the call by aiming to focus on the impulse shopping behaviours of adolescents.

Design/methodology/approach

The research is qualitative in nature and utilises lengthy mini focus group interviews of both adolescent and adult consumer shoppers. The verbatim transcriptions are then subjected to both manual and automated textual analysis to derive conceptual and thematic maps of each group's discussions in relation to impulse shopping.

Findings

Consistent with recent neuropsychological literature on adolescents, the findings show clear differences between adolescents and adults in relation to impulse shopping. Significant differences were found in the areas of antecedent moods, shopping purpose, and the range of perceived constraints which may moderate impulse shopping behaviour. The research also shows that impulse buying among adolescents is a behaviour which is undertaken often in response to stress and/or a need for mood amelioration and further that their conceptualisation of impulse shopping is only distantly related to a deficient set of perceived constraints when compared to adult shoppers.

Practical implications

This improved understanding of the bases of adolescent impulse shopping will assist in the design of educational programs to reduce the frequency of adolescent financial problems.

Social implications

There may be a reduction in the number of adolescents facing resultant financial hardship.

Originality/value

This is the first such study which reports the belief structures of adolescent impulse shoppers versus adults.

1 – 10 of 22
Per page
102050