• Title, Summary, Keyword: fitting length

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A Study on the Optimized Biarc Curve Fitting of Involute Curve (인벌류트 곡선의 Biarc Curve Fitting 최적화에 관한 연구)

  • Cho, Seung-Rae;Lee, Choon-Man
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.4
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    • pp.71-78
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    • 1999
  • The determination of the optimum biarc curve passing through a given set of points along involute curve is studied. The method adopted is that of finding the optimum number of span and the optimum length of the span such that error between the biarc curve and involute curve minimum. Iterative method is effectively used to find the optimim number and length of the span on involute curve with reduced length of NC-code.

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Fitness and problems of ready-to-wear garment in collegians (우리나라 대학생의 기성복 맞음새 정도와 불만족 실태)

  • Kim, Yang-Weon
    • Korean Journal of Human Ecology
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    • v.10 no.1
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    • pp.93-100
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    • 2001
  • The purpose of this study is to investigate the fitness and its problems related in clothing fitness and to get basic data to develop fit ready-to-wear garment, total 352 subjects were surveyed during the period of November, 1998. The major results of this study were as follows ; 1. Both men and women felt fitter in upper clothes than lower clothes. As compared with women, men became more aware of proper fit except coat. 2. Men had lest fitting problems in blouse and shirts while women in coat. Also, the clothes stated which had most fitting problems were trousers by men and women. 3. A variety of fitting problems in ready-to wear garments were identified including sleeve length, skirt length, and pants length. 4. The most frequent alterations were shortening or lengthen of skirt and pants.

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Technical Note : Development of Electric Riding Machine for Cycle Fitting (단신 : 사이클 피팅을 위한 전동 승차 조절기 개발)

  • Bae, Jae-Hyuk;Choi, Jin-Seung;Kang, Dong-Won;Seo, Jeong-Woo;Tack, Gye-Rae
    • Korean Journal of Sport Biomechanics
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    • v.22 no.3
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    • pp.373-378
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    • 2012
  • The purpose of this study was to develop an electric riding machine for cycle fitting to control riding posture easily, to measure frame size quantitatively, and to overcome disadvantages of the traditional systems. The electric riding machine consisted of actuator, load controller, and display & control unit. The actuator unit by BLDC(BrushLess Direct Current) motor drives the saddle height up and down, the crank forward and backward, the handlebar up and down, and the handlebar forward and backward. The load controller unit controls loads by Eddy current controller with electromagnet and aluminum circular plate. The display & control unit consisted of frame size controller and display panel which shows top tube length(485~663mm), head tube length(85~243mm), seat tube length(481~671mm), and seat tube angle($62.7{\sim}76.4^{\circ}$). The range of frame size control for developed electric riding machine did not have difference compared to traditional commercial systems, but quantitative and precise control with 0.1 mm length and $0.1^{\circ}$ angle was possible through digital measurement. Unlike traditional commercial systems, frame size control was possible during riding through motor driven method, thus fitting duration decreased. It is necessary for further improvement to have feedback from users. It is believed that developed electric riding machine can help to develop domestic fitting system.

A Study on the Development of Basic Pants Pattern for Men Using Virtual Fitting Program - Focused on the Menswear Textbook - (Virtual Fitting Program을 활용한 남성복 기본 팬츠 패턴개발 연구 - 남성복 교재를 중심으로 -)

  • Shin, Kyounghee;Suh, Chuyeon
    • Fashion & Textile Research Journal
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    • v.20 no.4
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    • pp.410-421
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    • 2018
  • The study is designed to develop a educational basic pants patterns for men, and has been analyzed focusing on the university textbooks published since 2000. We also used CAD programs and virtual fitting programs to analyze the fitness of pants. To do this purpose, after choosing 7 Men's Wear textbooks, selected patterns were drawn and measured using PAD system and were compared and analyzed. Also, the appearance evaluation was examined through virtual fitting and then evaluated 21 male and female university students in their 20s. After supplementing the problems of the patterns in the existing textbooks, a pattern was developed and verified the fitness of the developed pattern. The results of comparing the proposed measurement items of each textbook for the pants pattern indicated a significant differences in terms of hip circumference of each pattern, which were between 96~105cm. A comparison of the drafting methods of each pattern showed the drafting methods for the crotch length, the front crotch extension, the back crotch extension were the difference. The results of appearance evaluation were pattern E presented the slimmest fit and pattern D presented the loosest fit. As a result of analysis of pants pattern, a waist circumference 82cm, a hip circumference 98cm, a crotch length 24cm, a pants length 104cm and a ham line width 46cm were most suitable. The development pattern was evaluated as superior to the existing pattern through the appearance evaluation of the virtual fitting.

Study on input data for developing virtual fitting model at internet apparel shopping sites and comparison of the results (인터넷 의류 판매 사이트의 가상피팅모델 구축을 위한 입력정보 종류와 결과 비교)

  • 천종숙;최현영
    • Science of Emotion and Sensibility
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    • v.5 no.4
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    • pp.1-10
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    • 2002
  • A web based virtual try-on provides customers a more enjoyable shopping experience that visualize clothes on personal mannequin. The researchers compared virtual fitting models which were developed in 2000 at Korea and in 2000 and 2002 at U.S. The results of this study as follows: The information about user's body size was required to input for selection of a virtual fitting model. 7 to 19 different body size, shape, and face features including weight and height were needed for visualizing virtual fitting model. The body type of the U.S virtual fitting model(My virtual model) was selected by front view silhouette for women, and by shoulder width and midriff silhouette for men. The more detailed information was required for developing Korean virtual fitting model. The additional body size information required in the site were leg and arm lengths, waist length, and thigh and ankle circumferences. The body proportion of Korean cyber personal mannequin was longer and narrower than the U.S cyber personal mannequin. It was recommended that standardized body length, width, and depth proportions calculated from national anthropometric data must be applied for developing Korean virtual fitting model. With application of more detailed information on face feature and advanced graphic image technology the 'My virtual model in 2002 resembled the human body shape of various race.

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Fit and Problems of Ready-to-Wear Garment in Women (여성용 기성복에 대한 적합성과 문제점에 관한 연구)

  • Kim, Yang-Weon
    • Korean Journal of Human Ecology
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    • v.8 no.1
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    • pp.211-217
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    • 1999
  • To investigate the fitting and its problems related in clothing fit and to get basic data to develop fitted ready-to-wear garment, total 238 subjects were surveyed during the period of May, 1997 in Taejon. The major results were as follows; 1. The results showed that most subjects had purchased ready-to-wear garments in a department store. 2. The fit of ready-to-wear garments is more suitable in the upper wear such as T-shirts and blouse than in lower wear such as skirts and pants. 3. Fitting problems in ready-to-wear garments were identified, including sleeve length, shoulder area. 4. A variety of fitting problems in ready-to-wear garments were showed waistline, thigh girth, sleeve length. 5. There were significant differences between the demographic variables, i.e. marital status and occupation and clothing problems.

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Analysis on Torso Somatotype of Adult Females by Tight Fitting Technique (입체재단에 의한 성인여성의 체간부 유형분석)

  • 홍정민
    • Journal of the Korean Society of Costume
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    • v.42
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    • pp.163-172
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    • 1999
  • The purpose of this study is to classify the types of torso of adult females using the tight fitting technique and pattern development figure. The subjects are 106 females of 19 to 24 years old. 59 different items are measured from body surface development and analyzed by factor analysis and cluster analysis. The results are as follows; 1. Eight somatotype factors are obtained through factor analysis and orthogonal rotation by the method of Varimax Factor 1 is the length of upper body factor 2 the length of lower body factor 3 the circumference and width of the back of upper body factor 4 the circumference and width of front torso factor 5 the dart type of the back of upper body factor 6 the size of the back neck factor 7 the type of the front shoulder and factor 8 the size of the back arm hole. 2. As a result of cluster analysis the somatotype of torso is classified into 5 types. Type 1 is normal in length circumference and width of upper body. Type 2 is shortest length circumference and width of torso. Type 3 is long in length circumference and width of torso. Type 4 is normal length and short in circumference and width especially short in bust circumference. Type 5 is longest in length circumference and width of torso.

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Development of Fitting Process for Extra Long Stainless/Composite Material Pipes (초장축 스테인레스/복합재료 파이프의 피팅 공정 개발)

  • Park, S.H.;Lee, C.M.
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.17 no.2
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    • pp.77-82
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    • 2008
  • Rubbing-roller is used for manufacturing liquid crystal display, and static displacement of the rubbing-roller becomes bigger as length of the rubbing roller made of aluminum is getting longer. Therefore, material of the rubbing-roller is changed from aluminum to CFRP(Carbon Fiber Reinforced plastic). Recently thermal spraying is applied to manufacturing process of long rubbing-roller. The thermal spraying has disadvantages such as increment of manufacturing time and fraction defective caused by density of stainless steel particle. In this study, fitting process by drawing was suggested and FEM analysis with Tsai-Wu failure theory and fitting experiments are carried out to find adequate shrink allowance. The suggested shrink allowance gives proper adhesive force, and CFRP failure is not occurred. Furthermore, the fitting process is applied to long rubbing-roller and availability of the fitting process is studied by measurement of roundness, straightness and shear strength.

Pattern Development of Skate Pants Allowing for Dynamic Movement and Postures (인체의 동작을 고려한 스케이트 팬츠 패턴 개발)

  • Jeong, Yeon-Hee
    • Korean Journal of Human Ecology
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    • v.17 no.1
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    • pp.115-126
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    • 2008
  • The construction of an athlete's tight-fitting garments is very important to the wearer in terms of athletic performance. Therefore pattern development of tight-fitting garments must allow for the full range of human movement and postures. In this study the relationship between the construction of a skate pants pattern and clothing fitting was explored with the aim of improving the comfort of the clothing. The four male subjects were university students between the ages of 20 to 24. Subjective wear sensations of the experimental garments were rated using a seven-point Likert scale on four consecutive days. While wearing the garments, subjects were asked to take five different postures including waist flexion, sitting and others. A Likert-type scale was used for the evaluation, with 7 points indicating the best fit in tight-fitting pants. Results showed differences in the front-rise length and back-rise length between basic pants(A) and modified pants(B,C,D) were -5.16cm and +5.64cm. Comparing the basic pants pattern(A) with modified pants pattern(B), the latter was superior to basic pants(A) in terms of pressure sensation and closeness of fit, but there was no significant difference. Among the four tight-fitting skate pants, A and B pants were superior to the others in terms of fitting and stability of waist and hip sections. In the case of the skate pants, the number of cutting lines in the pattern had an influence on clothing comfort. A minimum cutting line for tight skate pants was better than a maximum cutting line in terms of clothing comfort.

A Study about Fitting of Children's Ready-to-Wear Clothing (학령기 아동의 기성복 치수 적합성에 관한 연구)

  • Yi, Gyoung-Nam;Hahm, Ock-Sang
    • Fashion & Textile Research Journal
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    • v.2 no.2
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    • pp.138-145
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    • 2000
  • The problem of fitting of children's clothing was researched through survey papers. The survey subjects were the mothers of elementary school students (grade 1 6) and the appropriateness of size, satisfaction with size, and fittings were asked. The survey area was divided into urban and rural areas. The following is the result: The children's clothing was mostly purchased in stores that carry lower-middle price range. The elements considered upon purchase were in the order of price, size, color and patterns. The frequency of purchase is 2 outfits a year, and the highest rate purchase was shown during the change of seasons. The size was picked through trying on the garment. The preferred indication of size was the one marked according to body size. The most popular size upon purchase was one size bigger than the proper fitting size. Mothers want their children to be able to wear one outfit for two years and actually children were able to wear them for two years. The highest degree of satisfaction upon proper fitting was bust girth and shoulder breath. The most frequent reason for a new purchase is the length. The most frequent dissatisfaction is the way buttons are sowed on.

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