• Title/Summary/Keyword: design direction

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Design and Manufactures of Cyclocopter Composite Wing Blades (사이클로콥터의 복합재료 Wing blade 설계 및 제작)

  • 김승조;윤철용;백병주
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2000.11a
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    • pp.187-190
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    • 2000
  • Cyclocopter is air vehicle to vertically take-off and land like a helicopter. This is an efficient and quiet means of being able to direct thrust compared to a helicopter. The rotor consists of several blades rotating about a horizontal axis perpendicular to the direction of normal flight. The direction of blade span is parallel to rotating axis and both end roots are connected to the hub to resist centrifugal force and to transmit the power. The pitch of the individual blades to the tangent of the circle of the blade's path is varied cyclically to gain thrust. In the paper, the design and manufactures of cyclocopter rotor blades are presented. Stress at the roots of cyclocopter blades is great due to centrifugal and aerodynamic forces and aeroelastic instabilities appear. The blades consist of main spar, front spar, polyurethan foam, weight, and skin and spars and skin are made of glass/epoxy composite.

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On Design of Visual Servoing using an Uncalibrated Camera and a Calibrated Robot

  • Uchikado, Shigeru;Morita, Masahiko;Osa, Yasuhiro;Mabuchi, Tesuo;Tanya, Kanya
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.23.2-23
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    • 2001
  • In this paper we deal with visual servoing that can control a robot arm with a camera using information of images only, without estimating 3D position and rotation of the robot arm. Here it is assumed that the robot arm is calibrated and the camera is uncalibrated. We use a pinhole camera model as the camera one. The essential notion can be show, that is, epipolar geometry, epipole, epipolar equation, and epipolar constrain. These play an important role in designing visual servoing. For easy understanding of the proposed method we first show a design in case of the calibrated camera. The design is constructed by 4 steps and the directional motion of the robot arm is fixed only to a constant direction. This means that an estimated epipole denotes the direction, to which the robot arm translates in 3D space, on the image plane.

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Optimization of Cutting Force for End Milling with the Direction of Cutter Rotation (엔드밀가공에서 커터회전방향에 따른 절삭력의 최적화)

  • Choi, Man Sung
    • Journal of the Semiconductor & Display Technology
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    • v.16 no.2
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    • pp.79-84
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    • 2017
  • This paper outlines the Taguchi optimization methodology, which is applied to optimize cutting parameters in end milling when machining STS304 with TiAlN coated SKH59 tool under up and down end milling conditions. The end milling parameters evaluated are depth of cut, spindle speed and feed rate. An orthogonal array, signal-to-noise (S/N) ratio and analysis of variance (ANOVA) are employed to analyze the effect of these end milling parameters. The Taguchi design is an efficient and effective experimental method in which a response variable can be optimized, given various control and noise factors, using fewer resources than a factorial design. An orthogonal array of $L_9(33)$ was used. The most important input parameter for cutting force, however, is the feed rate, and depending on the cutter rotation direction. Finally, confirmation tests verified that the Taguchi design was successful in optimizing end milling parameters for cutting force.

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The Ropeless Elevator: New Transportation System for High-rise Buildings (and Beyond)

  • Belmonte, Martina;Trabucco, Dario
    • International Journal of High-Rise Buildings
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    • v.10 no.1
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    • pp.55-62
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    • 2021
  • The paper reports the result of a 2-year long research conducted by CTBUH on the design possibilities enabled by the Ropeless and Multidirectional elevator systems, investigating how such a significant innovation (or better to say revolution) in the vertical transportation could affect tall buildings first and cities then. The purpose of the study is to prefigure the adoption of ropeless and multidirectional cabins for tall buildings mobility, with the aim to overcome the evolutionary bottleneck of the high-rise building type due to the exclusively vertical direction of transport, which limited, over the years, the design possibilities in terms of height, shape and relations with the surrounding environment. CTBUH research team, together with professionals in the field and supporting academic advisors, developed a series of design considerations on plan organizations, dispatching alternatives and on the integration of horizontal direction in the circulation, with the aim of anticipating potential and criticality arising from the application of ropeless and multidirectional systems.

Concept and Realization Direction of Design Business for Paradigm Shift to Design Business (디자인비즈니스패러다임 인식전환을 위한 디자인비즈니스의 개념과 실현방안)

  • Kim, Myoung-Joo;Kim, Jung-Pil;Lee, Jin-Ryeol
    • Archives of design research
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    • v.18 no.2 s.60
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    • pp.59-68
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    • 2005
  • This research suggests the direction realizing design business which means that designers overcome traditional role of passive design development and pursue active and subjective design development and eventually accomplish high profit by various sources except design development fee. For this, designers should be able to suggest highly successful design alternatives not by performing subjective aesthetic process but objective and scientific design development process through market-oriented information seeking, scientific design development and effective design management etc. In addition, designers should cultivates design business mind maximizing profit by various sources such as royalty, management fee and commission fee through exercising ownership, or participating distribution process and for outsourcing tasks. Regarding companies' side, they need to overcome existing manufacturing-based business paradigm focusing on rather material development, R&D, facility establishment than design or marketing, and to build design-centered business management system which menas the prior investment in design including needs identification of consumers.

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A Direction of Emotion Design for Future MP3 Players by Trend Analysis (추세분석을 통한 미래 MP3 플레이어의 감성디자인 방향 모색)

  • Lee, Yu-Ri;Yang, Jong-Youl
    • Science of Emotion and Sensibility
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    • v.10 no.4
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    • pp.511-521
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    • 2007
  • It is very important that design based on preference of consumers who continuously change. Therefore, the method that can decide on the design concept which a consumer can prefer in future points of time that a design is released is necessary. There may be various ways to decide a design concept, but trend analysis is one of the best ways to be able to satisfy consumer preference. The purpose of this study is to provide a process that can give a direction of MP3 player design oriented consumer emotion. For the purpose, we considered about trend analysis as the ways that can present the design direction that can grasp a change of continuous preference, and a consumer can prefer with early bases in future points of time of a consumer. In this empirical research, we decided on design elements and levels of the elements after collecting 228 MP3 players released from 2000 to 2007, and carried out trend analysis through homogeneity analysis by SPSS program. In the result, we knew that future consumers also will regard emotional experience consumption as important. So, MP3 player design will be developed into consumer emotion-oriented design. We predict 4 trends for a future MP3 player design. 1. Development of high-priced MP3 player with various multimedia functions. 2. Development of MP3 player with basic functions. 3. Development of new convergence products with MP3 function. 4. Development of new MP3 player based on flash memory. If designers can infer a future MP3 player design from this design trend results, the probability that can occupy competitive advantage in their competitions will be high. Therefore this study can be useful.

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Fashion and Beauty Involvement According to a Conspicuous Consumption Tendency (과시소비성향에 따른 패션과 뷰티관여도)

  • Park, Hyun-Ju;Park, Sook-Hyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.35 no.1
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    • pp.77-88
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    • 2011
  • This study examines the fashion and beauty involvement according to a conspicuous consumption tendency. Questionnaires were used for female university students in their 20s and employees residing in Busan. The results of this study are as follows: The subfactors of conspicuous consumption tendency were divided into the individual pursuit orientation, brand orientation, high price orientation, and fashion pursuit orientation. The subfactors of fashion involvement were composed of physical supplementations, social symbols, outward appearance direction, sex appeal, and assimilation; in addition, those of beauty involvement consisted of hair design, skin management, make-up application, and shape management. Because of the examination of the differences, fashion involvement, and beauty involvement, conspicuous consumption tendency had a significant difference between the two groups in brand orientation, fashion in physical supplementation and outward appearance direction as well as beauty involvement in skin management and make-up direction. The conspicuous consumption tendency in the student influences the fashion pursuit orientation of fashion and beauty involvement because of the examination of the effect. Conspicuous consumption tendency in employees influences the individuality pursuing orientation and high price orientation in fashion involvement. In conclusion, the results show the tendency that university students put the most importance on fashion for fashion and beauty related product purchases and management direction; in addition, employees with income pursue high prices that can show their positions and economic power at work.

A Study on the Smart Home Life Style for Single households - Focusing on the 20s and 30s - (1인 가구를 위한 스마트 홈 라이프스타일 서비스 연구 -20·30세대를 중심으로-)

  • Lee, Ui-Jin;Kim, Seung-In
    • Journal of the Korea Convergence Society
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    • v.8 no.8
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    • pp.231-237
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    • 2017
  • The purpose of this study is to investigate the need for smart home service based on the lifestyle of a rapidly growing single household. When we compare the need and the arbitrary service according to the pattern of the lifestyle of the consumer, we try to analyze whether there is an effect on the future use. In the questionnaire survey of 1 person, 8 questions were selected such as food, state, line, leisure, communication, consumption, mobile life, Single household characterization question should be added so that concrete measures can be presented to future services. Competitive smart home services will be presented by examining the lifestyle of the 20th and 30th generation of single households, It is intended to be used as basic data on the direction of development of smart home service of the rapidly increasing single person households, and it is aimed to be a direction of improvement and development direction of the existing plan.

A Study on Design Direction of e-Portfolio Based on the Current State Analysis of Portfolio Application of Domestic Elementary, Middle, and High School (국내 초.중등학교의 포트폴리오 활용 실태 분석에 기반한 e-포트폴리오 설계 방향에 관한 연구)

  • Kim, Sang-Su;Kim, Young-Hak
    • The Journal of the Korea Contents Association
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    • v.7 no.12
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    • pp.83-94
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    • 2007
  • The portfolio can be used as a methodology supporting the learning of constructivism. Recently, the use of portfolios has been increased gradually in the education field, but a study on the current state analysis and design direction of portfolios leaves much to be desired. In this paper, we analyze statistical data on the portfolio application of teachers in domestic elementary, middle, and high school. We also propose a design direction of e-portfolio needed in the society of knowledge information based on this analysis. The results of research show that the following problems will be improved: understanding portfolio, analyzing the current state according to the types of portfolio application, designing a distinguished system according to the level of school, expanding education of teachers with high career, and developing a guide helper. The design of total system that combines the learning and evaluation is needed to improve a problem that spends lots of time to make portfolio, and operates temporally and formally achievement evaluation. In addition, the design of e-portfolio supporting efficiently interaction and self-directed teaming is required.

Research on Technology Status and Development Direction of Wearable Robot (웨어러블 로봇의 기술 현황 조사 및 개발 방향 제안 연구)

  • Kim, Hye Suk;Koo, Da Som;Nam, Yun Ja;Cho, Kyu-Jin;Kim, Seonyoung
    • Fashion & Textile Research Journal
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    • v.21 no.5
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    • pp.640-655
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    • 2019
  • Technology status was investigated by analyzing patents and development cases of wearable robots. Development direction of wearable robot for wearability was also suggested by understanding the problems of wearability from development cases through the FGI technique. The number of patents per technical field was the most in the field of strength support, but AI in the technology field was different in each country; Korea was found to be poor in the category of daily living assistance. The number of patents by technology category was the most in the category of muscular strength assistance. However, the values of AI in the technology category were different in each country; Korea was found to be poor in the category of daily living assistance. Development cases were focused on rehabilitation, so development is not fulfilled uniformly by use purpose. By wearing body parts, robots with single function type were mainly developed. Rigid material robots were mainly developed. It was confirmed that wearable robot technology is not developed evenly in the category of application because it is in the early stage of the technical proposal and centered on main performance improvement. We derived twelve wearable conditions for wearable robots: Shape and Size Appropriateness, Movement Appropriateness, Composition Appropriateness, Physiological Appropriateness, Performance Satisfaction, Ease of Operation, Safety, Durability, Ease of Dressing, Ease of Cleaning, Portability and Ease of Storage and Appearance Satisfaction. Finally, the development direction of a wearable robot for each wearable condition was suggested.