• Title/Summary/Keyword: clothing human engineering

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Variation of Human Thermal Radiation Characteristics Applying Different Clothing Materials (의복 소재 변경에 따른 인체 열상신호 변화 특성)

  • Chang, Injoong;Bae, Ji-Yeul;Lee, Namkyu;Kwak, Hwykuen;Cho, Hyung Hee
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.5
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    • pp.644-653
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    • 2019
  • With the development of themal observatory device(TOD), thermal camouflage system has been applied not only to the weapon system but also to the combat suit for soldiers. In this paper, the characteristic of thermal radiation of human body depending on the clothing material properties was analyzed through numerical simulations. The bioheat equation with thermoregulatory model was solved to obtain the realistic surface temperature of human body and these results are combined with the emissivity of human skin and clothing in order to calculate the thermal signature from the human body. According to each thermal resistance of clothing, the optimal background radiance which makes contrast radiance intensity(CRI) be lowest is different. Also, the average CRI variation per thermal resistance change is about twice as much as the case of evaporative resistance change.

A Human Engineering Study of Clothing in an Environmental Aspect (I) - Based on the Skin Temperature after Physical Exercise of Human Body - (환경요소면으로 본 의복의 인간공학적 연구 (I) - 인체동작후의 피부온 변화를 중심으로 -)

  • 이전숙
    • Journal of the Korean Home Economics Association
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    • v.20 no.2
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    • pp.65-71
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    • 1982
  • Comfort concept of heating and cooling between body and environment is modified by the clothing. So were can say the clothing is one of the environment. To maintain“pleasantness”, clothing must have the elements of comfort and function. This study carried out for the 1st step to describe the relation between clothing and the human body I aspect to the emvironmental elements of temperature and working part of the body. Observations of skin temperature were taken on young adults female subjects in training wear and the skin temperature was measured onto 9 points of the body while taking part in two physical exercise, with Rawing machine and Bicycle ergometer. The results obtained are as follows; 1. The skin temperature after physical exercise is lower than that after repose. 2. After physical exercise of the lower part of the body, the skin temperature is less than that after physical exercise of the upper part of the body. 3. After physical exercise of the upper part of the body, skin temperature of the lower part of the body rises a little, and vice versa.

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Pattern Analysis and Determination of Body Dimension for Flight Suit Design (비행복 설계를 위한 패턴 분석 및 인체치수 설정)

  • Jeon, Eun-Jin;Park, Ji-Eun;Jeong, Jeong-Rim;Park, Sei-Kwon;Park, Jang-Un;You, Hee-Cheon;Kim, Hee-Eun
    • Fashion & Textile Research Journal
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    • v.11 no.2
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    • pp.286-292
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    • 2009
  • The purpose of this study is to analyze the pattern of the present flight suit, to select variables of human body and key dimensions for making pattern of the flight suit, and to decide the most appropriate size of human body and rate of ease for designing an overall flight suit. For analyzing the pattern of flight suit, we used "M95Special" (men ; chest circumference 92-97 cm ; height : above 177 cm), which was indicated as the standard of the Ministry of National Defense. We analyzed general appearance and the actual dimensions of the pattern of the flight suit. As a result of analyzing the pattern, flight suit was front-opened overall style which had a flat collar with rounded edges, two-pieced sleeves with lower height of the sleeve's cap, 3cm-width belt on the waist and 8 pockets. To decide the most appropriate size of human body, we selected 20 variables of human body in the 359 variables of the Size Korea by referring the previous studies. The 20 variables of human body were 9 circumferences (chest, waist, hip, neck, armscye, wrist, thigh, knee, and ankle), 9 lengths (stature, back interscye fold, waist back, crotch height, crotch, body rise, arm, outside leg and total), and 2 breadths (biacromial and chest). We drew out the size of 20 variables from the Size Korea and US Army anthropometry data and decided the most appropriate values from the drawn data for applying to the pattern of flight suit.

A Novel Method for 3D Surface and Solid Construction Analysis of Fabric Microstructure (직물 미세구조의 3차원 표면 및 솔리드 형성 방법)

  • Lee, Ye-Jin;Lee, Byung-Cheol
    • Korean Journal of Human Ecology
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    • v.21 no.3
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    • pp.539-550
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    • 2012
  • In-depth knowledge of fabric microstructure is essential for understanding clothing comfort since it plays a significant role in heat and mass transfer between the human body and clothing. In this study, a novel method was employed for investigating 3D surfaces and solid construction characteristics of specific fabrics by using a reverse engineering technique. The surface construction data were obtained by a confocal laser scanning microscope and then manipulated by a 3D analysis program. Triangle mesh was used for connecting each 3D point, with clouds and fabric surface characteristics created by rendering techniques. For generating a 3D solid model, determinants of radius of curvature was used. According to the proposed method, actual surface expression of the real fabric was achieved successfully. The results from this methodology can be applied to the detailed analysis of clothing comfort that is highly influenced by the microstructure of the fabric.