• Title/Summary/Keyword: standard design

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A Study on the Design Standard of Demand Factor and Diversity Factor (건물의 수요율 및 부등율 기준설정에 관한 연구)

  • 지철근;곽희로;강원구
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.4 no.1
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    • pp.54-62
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    • 1990
  • This paper shows a reasonable design standard of Demand Factor and Diversity Factor for buildings, that was made by the systematic and statistical way considering actual conditions, such as investicated electric equipment capacity, electric power consumption, etc. The saving of electric equipment investment, the decrease of power loss, the improvement of facilities utilization and the decrease of electric power rates, can be contributed by the application of the design standard. The recommended design standard must be applied by the revision of current regulations and laws.

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Earthquake Resistant Verification of a 5-Span Steel Box Girder Bridge (5경간 강박스교의 내진성능검토)

  • 국승규
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 1998.10a
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    • pp.103-112
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    • 1998
  • The earthquake resistant design for roadway bridges introduced in 1992 is conducted according to the "Standard Specification for Roadway Bridges", Division V, Seismic Design and the first revision of the Standard was done in 1996. However, dur to different concepts of the earthquake resistant design from those of the other designs, the provisions given in the Standard are still not applied appropriately. In this paper the verification of the earthquake resistant capacity of a bridge with typical configurations, 5-span steel box girder bridge, is carried out based on the application rules of the present Standard in order to provide clear understandings about the earthquake resistant verification and the earthquake resistant design as well.n as well.

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Rotor design functional standard of Synchronous Reluctance Motor according to torque/volume using FEM & SUMT (유한요소법과 SUMT를 이용한 동기형 릴럭턴스 전동기의 토크와 부피에 따른 회전자 설계의 함수화)

  • Lee, Rae-Hwa;Lee, Jung-Ho
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.55 no.11
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    • pp.577-581
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    • 2006
  • This paper deals with an automatic rotor design functional standard computation based on torque/volume for a synchronous reluctance motor(SynRM). The focus of this paper is the design relative to the torque/volume on the basis of each rated watt according to the rotor diameters of a SynRM. The coupled finite elements analysis (FEA) & sequential unconstrained minimization technique (SUMT) have been used to evaluate design solutions. The proposed procedure allows to define the rotor geometric design function according to the rotor diameter and rated watt starting from an existing motor or a preliminary design.

A Review on the Blast Resistant Design for Glazing and Window Systems Subject to High-explosive Loadings (공기 중 폭발하중에 대한 창호시스템의 방폭설계 절차에 관한 고찰)

  • Huh, Young-Cheol;Chung, Tae-Young;Oh, Sung-Keun
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.20 no.12
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    • pp.1229-1235
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    • 2010
  • Anti-terrorism design for public buildings as well as military facilities is important to minimize the mass casualties from terrorist attacks. Also, well designed glazing and window systems can reduce the potential injury of human caused by scattering fragment of a glazing. In this paper, blast resistant design for glazing and window systems is investigated based on the U.S. Standard. The design procedures include minimum requirements for the design, standard practice for design evaluation of the glazing and standard test method for evaluation of the performance.

EPLA(Electric Park Lock Actuator) System Safety Design Based on Vehicle Functional Safety Standard ISO 26262

  • Eun-Hye Shin;Hyun-Hee Kim;Kyung-Chang Lee
    • Journal of the Korean Society of Industry Convergence
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    • v.26 no.2_1
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    • pp.239-248
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    • 2023
  • In this paper, we conduct a study on the design that can secure the safety of the EPLA system by performing safety activities based on the ISO 26262 standard for vehicle functional safety. In the case of a company developing a detailed system, it is responsible for verification through hardware design and safety analysis in the overall flow of safety activities, and safety analysis according to the ASIL safety level must be properly performed. At this time, there are cases where the safety goal quantitative metric value suggested by the ISO 26262 standard cannot be satisfied only by the hardware design of the basic function, so it is necessary to design and install the safety mechanism. Based on ISO 26262 safety activities, it is possible to derive an effective design plan through hardware safety analysis.

A Study on the Architectural Design Standard for Elementary School in China (중국 소학교 건축설계규범의 구성에 관한 연구)

  • Son, Suk-Eui;Kim, Seung-Je
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.6
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    • pp.77-84
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    • 2018
  • China has been pursuing continuous education reforms in order to complement the shortcomings of traditional education and to prepare for a new era in accordance with the development of the economy and society. School facilities were rapidly increased due to rapid population growth in the 60s and 70s, but the quality of the school facilities was low considering the efficiency and economy, and the regional variation was serious. The National Standard for School Design was enacted in 1986. Since then, we have proposed a new national standard in 2011 in accordance with social change and educational needs, and it has reached the present time. The purpose of this study is to analyze the main contents of "Code for design of school(GB50099-2011)" which is a standard study for Chinese school design as a basic study to understand changes in school architecture in China.

Case Studies of Comparing EN 954-1 and EN ISO 13849-1 Standard for Design of Industrial Machinery Safety Control System

  • Kim, Tae-Ho;Kim, Hong-Ki;Yoon, Hoon Yong
    • Journal of the Ergonomics Society of Korea
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    • v.32 no.3
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    • pp.279-291
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    • 2013
  • Objective: The aim of this study was to compare old standard EN 954-1 and new standard EN ISO 13849-1 through case study and provide necessity of adaptation of EN ISO 13849-1 in Korea. Background: International and EU harmonized standard EN ISO 13849 "safety of machinery - Safety-related parts of control system" is classified into Part 1: General principles for design and Part 2: Validation. EN ISO 13849-1 standard was introduced in Official Journal of the European Union on September 8, 2009 as harmonized standard, and old standard EN 954-1 was withdrawn on December 31, 2011. So, EU decided to use of EN ISO 13849-1 standard forcibly from January 1, 2012 for safety of machinery. New machines need to be CE marked if they are to be placed on the market in the European Economic Area(EEA), Switzerland or Turkey, and Korean machine builder should apply EN ISO 3849-1 standard for safety of machinery accordingly. However, current Korean Safety Certification system(KCs mark) for dangerous machinery is not referred to EN ISO 13849-1 standard as safety standard. There is a need of research for adaptation of EN ISO 13849-1 standard in Korea as safety standards for new design of safety-related control system which use mostly electronic components. Method: Five case studies of representative designs for safety-related control system in accordance with EN 954-1were selected according to safety category from B to 4. And these five representative designs were tried to change new design in accordance with EN ISO 13849-1 standard. The results of comparison were analyzed in aspect of economy and technical complexity. Results: The results showed that EN ISO 13849-1 provided quantitative method of application and it enabled designers to create safety-related control systems that require fewer components and less wiring, with many of the components being to a lower specification and, therefore, less costly. Conclusion: EN ISO 13849-1 standard is good for electronic safety-related control systems compare to EN 954-1. By considering the importance of application of EN ISO 13849-1 and benefits, the application of EN ISO 13849-1 as safety standard for safety of machinery is urgent in Korea. Application: The results of comparing EN 954-1 and EN ISO 13849-1 standard might help to determine the adaptation of EN ISO 13849-1 standard for safety of industrial machinery in Korea.

A Case Study of Steel-making Plant Engineering Standard Development Based On Systems Engineering Standards (시스템 엔지니어링 표준 기반 제철 플랜트 엔지니어링 업무표준 개발 사례)

  • Lee, TaeKyong;Cho, RaeHyuk;Salim, Shelly;Lee, JoongYoon
    • Journal of the Korean Society of Systems Engineering
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    • v.12 no.1
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    • pp.7-23
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    • 2016
  • Plant engineering industry is considered as a key industry which will drive the future of Korea. However, Korean plant engineering companies have recently made huge losses in overseas businesses and the lack of engineering capability is pointed out as a main cause of this situation. Unlike Korean plant engineering companies, world leading engineering companies such as Flour and Bechtel have their own systems Engineering Standards/Guides ensuring successful fulfillments of the concept and basic design processes. An engineering standard for an organization is an essential means to shorten the time for engineering design, to maintain the engineering quality and to secure the engineering efficiency in the development of the complex system. Korean plant engineering companies'lack of engineering capability comes from the absence of the engineering standard. In the paper, we have developed a steel-making plant engineering standard based on a systems engineering standard. We chose both ISO/IEC/IEEE 15288 and NASA SE Handbook as main reference standards. First, we have introduced a life-cycle definition and a physical hierarchy of a general steel-making plant. Then we have introduced detailed engineering processes of each life-cycle stage. The full scope of the study was from the feasibility study to the basic design but in the paper, we have only introduced detailed engineering processes and exit criteria for the feasibility study and the concept design.

Verification of the Standard Modeling Commands by Implementing a Geometric Modeler (형상 모델러의 구현을 통한 표준 모델링 명령어 집합의 검증)

  • 김병철;한순흥
    • Korean Journal of Computational Design and Engineering
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    • v.9 no.1
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    • pp.19-26
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    • 2004
  • It is not possible to exchange parametric information of CAD models based on the current version of STEP (Standard for the Exchange of Product model data). The designer intents are lost during the transfer of CAD models. To resolve this problem, the macro-parametric approach had been proposed. To enable this approach, a set of standard modeling commands has been defined. Errors or missing elements of the standard modeling commands can be discovered by implementing macro-parametric translators. But there is a limit to discover problems only by using translators. This paper proposes a method to verify the standard modeling commands by implementing a geometric modeler. First, each argument of a modeling command is verified. Second, the set of the standard modeling commands is applied to geometric modeling of commercially available product parts. For the geometric modeling, nine test models have been selected.

A Study on the Technical Contents for BIM Design Support (BIM 설계지원 기술콘텐츠 구축에 관한 연구)

  • Cho, Hyunjung;Jang, Jinseok;Kim, Yeonsoo
    • Korean Journal of Computational Design and Engineering
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    • v.20 no.2
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    • pp.114-123
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    • 2015
  • The BIM libraries and technical contents in order to develop common technical standards that reflect the contents for a BIM design support should be based. It is essential to redress the technological burden on design office requirements. The technical contents consisted of Material Information, Standard Details and Cost Information are made by system of standard classification. By connecting BIM libraries with each of information including the contents, it derives the consistent BIM data application through the integrated model. In addition, we look forward to introducing and applying BIM more easily through securing common technical contents which remove the pressure of engineering developments of each individual architectural design office and prevent overlapping investments.