• 제어로봇시스템학회논문지
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• 제9권5호
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• pp.368-373
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• 2003

This paper presents a cost-effective 3D foot scanner system that provides the 3-dimensional point cloud foot data to design the custom footwear. To measure the 3-dimensional point cloud data of the foot, a CCD camera, a Non-Gaussian laser line projector and optical triangulation method are employed. Furthermore, the integrated system employs a measurement base, a frame grabber, a CCD moving cart, a stepping motor and a computer. The measurement result is saved as 3D dxf format and it could be converted to 2D essential data fer a shoe design. The experimental results demonstrate that the proposed system have the decent resolution of 1mm which is enough for last and shoe design.

• 한국정밀공학회지
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• 제16권7호
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• pp.51-57
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• 1999

Recently, long large bridges are built for mass transportation. Movable bearing shoes are important components of the bridges because they support movement of translation and rotation of bridge. In design stage of the long large bridges, detailed analyses using the finite element method are performed to guarantee safety and reliability. For that purpose, three-dimensional modeling is carried out by I-DEAS software and finite element analysis by ANSYS software. Results of the analyses are reviewed and important design factors for movable bearing shoes are discussed.

• 한국운동역학회지
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• 제20권2호
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• pp.221-230
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• 2010

The purpose of this study was to analyze biomechanical factors of trail running shoes applied to korean shoe-lasts. 10 healthy male subjects with an average age of 37.2 years(SD=8.28), weight of 69.6 kg(SD=10.56) and a height of 171 cm(SD=4.93) were recruited for this study. Ten males walked on a treadmill wearing four different shoes. Foot pressure data was collected using a Pedar-X mobile system(Novel Gmbh., Germany) operating at the 1000 Hz. Surface EMG signals for tibialis anterior, gastrocnemius, vastus lateralis and biceps femoris were acquired at 1000 Hz using Noraxon TeleMyo DTS system(Noraxon Inc., USA). Foot pressure and leg muscle fatigue were measured and calculated during walking. The results are as follows: After walking 60 minutes, Type A showed a lower MPF. MPF values were significantly different from each muscle(p<.05). Therefore, Type A shoe might decrease muscle fatigue in the legs while walking. In addition, Type It showed that Type A shoe has the highest contact area and the lowest maximum pressure. As a result of the analysis, Trail running shoes will use a new design to reduce muscle fatigue and are expected to increase comfort and fitting.

• 한국의상디자인학회지
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• 제13권1호
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• pp.73-90
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• 2011

Modern footwear is accepted as a fashion accessory that plays the role of a point of style, which reflects trends and makes use of individuality and stylishness, not a practical means itself. This study considers diverse types of western shoes, which had been historically popular from, and about a role in accordance with it, and grasps the occurrence background and the aesthetic characteristics in shoes type, which had initiated fashion in the historically cultural aspect. Thus, the aim is to be conducive to developing design related to modern shoes. As a result of this study, shoe styles have changed in relation to the historical situation throughout every period from medieval times to mid-modern times. Two functions of shoes, practicality and aesthetics, could be observed tendency of leading fashion in the middle of mutual control and supplementation according to social conditions, economic strength in a person of wearing shoes, social standing, and gender. Accordingly, considering that designs related to shoes are influenced by the historical conditions, continuous research on unique designs according to each era is thought to be necessary to develop shoe designs of the future.

• 디자인학연구
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• 제19권1호
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• pp.69-78
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• 2006

신발 제품은 기존의 발의 보호라는 기능적인 측면을 넘어서 오늘날 소비자의 주관적 감성을 바탕으로 하는 개성적이며 고급화된 측면이 강조되고 있으며, 이에 따라 기업의 제품개발 과정에도 영향을 미치고 있다. 특히 디자인 개발 과정에서 새로운 아이디어 발상을 통한 신발 제품의 컨셉을 확립하기 위해서는 인간의 감성을 바탕으로 하는 다양한 이미지 소스를 필요로 한다. 따라서 본 연구에서는 이러한 제품에 대한 소비자의 욕구와 디자이너의 욕구를 충족시키기 위하여 건축 및 구조물, 운송기기, 자연물, 일반제품의 4개 분류에 대한 1000개의 다양한 이미지에 대하여 300명의 피험자를 대상으로 온라인상의 웹(web)을 통하여 감성공학적 평가를 수행하였다. 또한 평가된 데이터를 바탕으로 기초 통계, 인자 분석 및 다차원척도 분석에 따른 결과를 제공하는 D/B를 웹 상으로 구축하였다.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1998년도 춘계학술대회논문집
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• pp.13.2-18
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• 1998

The purpose of this study was to investigate the attitude related to the purchasing and wearing dress shoes for Korean adult women. 480 adult women age from 18 to 86 years participated in the survey and they were recruited in Seoul and Taejeon. The results were as following; 1. The most common dress shoes sizes were 235 and 240. 2. The subjects age uder 30 years perceived that the fashion is mor important than the comfort when they purchase dress shoes. The suvjects age over 60 years preferred shoes design giving comfort than fashionably designed one. 3. The most frequent complainings with dress shoe design were narrow shoe width, the stiffness of material, and discomfortable sole shape. 4. The letter size designation of dress shoes was not fulled recognized by the consumers. The use of letter size designastion was extremely low when they purchased shoes that fit their foot.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.854-855
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• 2011

In this paper, Interior permanent magnet synchronous motor(IPMSM) with concentrated winding for 110cc electric motorcycle is introduced. Optimum design is performed so as to satisfy wide speed operation range. And output characteristics is analyzed according to shoe height in many variables. Because partial magnetic saturation in shoe affects the harmonics, output characteristics of motor could be confirmed that a significant change. As a result, the new shape and the optimal design parameters considering the partial magnetic saturation is obtained. Compared with the base model, wide operating range was confirmed.

• 한국운동역학회지
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• 제19권1호
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• pp.13-25
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• 2009

Existing footwear biomechanics studies rely on simplified kinetics and kinematics, plantar pressure and muscle electromyography measurements. Because of the complexity of foot-shoe interface and individualized subject response with different footwear, consistent results regarding the biomechanical performance of footwear or footwear components can yet be achieved. The computational approach can be an efficient and economic alternative to study the biomechanical interactions of foot and footwear. Continuous advancement in numerical techniques as well as computer technology has made the finite element method a versatile and successful tool for biomechanics researchdue to its capability of modelling irregular geometrical structures, complex material properties, and complicated loading and boundary conditions. Finite element analysis offers asystematic and economic alternative in search of more in-depth biomechanical information such as the internal stress and strain distributions of foot and footwear structures. In this paper, the current establishments and applications of the computational approach for footwear design and evaluation are reviewed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.830-837
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• 2010

Since it started the researches on a maglev train on 1960, Germany and Japan arrived to putting to practical use level and accomplished most tests from their test-line. Korea is in progress the preparation for a practical use of low-speed maglev train in 110 [km/h] class and Korea Railroad Research Institute(KRRI) is in progress of a research about core technology of maglev system for high-speed tube train of 700 [km/h] class. In this paper, authors suggest an effective design method of Linear Synchronous Motor(LSM) for high-speed tube train of 700 [km/h] class which has a wound type electro-magnet. Then, authors calculate a variety of properties by changing speed of the LSM model which is designed by a method based on some theoretical equations. Then, authors verify the validity of the method based on some theoretical equations through a verification of property values by Finite Element Method(FEM) analysis method. Finally, in order to design a shape of pole-shoe part of LSM electro-magnet which is hard to design with a basic design method, authors analyze a transition of property values by changing a pole-shoe width and current of the electro-magnet through an analytical method by FEM.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2011년도 춘계학술대회
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• pp.105-106
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• 2011