• Title/Summary/Keyword: Inspection Tools

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A study on 3D CAD tolerance information handling for inspection plnning (CAPP를 위한 3차원 CAD에서의 공차정보관리에 관한 연구)

  • 황인식;이관복;하성도
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.952-956
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    • 1995
  • It is known that the 3D Solid CAD system can provide various information which is useful for implementing CAPP and CAE. However the commercial 3D CAD systems available today do not support the handling of non-geometric information such as geometry tolerance and surface finish. It is impossible to input the non-geometric information during designof parts while CAPP needs the information for selecting machine tools. fiztures, inspection method, etc. In this paper the need of research on handling tolerance information In 3D CAD systems is considered. The development of inspection planning support system is also explained with an example. The development of inspection planning support systm receives the design geometry information from the 3D CAD system in the form of 2D draft and generates the inspection data base and the inspection sheet through the user interaction.

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Development of a Traceability Analysis Method Based on Case Grammar for NPP Requirement Documents Written in Korean Language

  • Yoo Yeong Jae;Seong Poong Hyun;Kim Man Cheol
    • Nuclear Engineering and Technology
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    • v.36 no.4
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    • pp.295-303
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    • 2004
  • Software inspection is widely believed to be an effective method for software verification and validation (V&V). However, software inspection is labor-intensive and, since it uses little technology, software inspection is viewed upon as unsuitable for a more technology-oriented development environment. Nevertheless, software inspection is gaining in popularity. KAIST Nuclear I&C and Information Engineering Laboratory (NICIEL) has developed software management and inspection support tools, collectively named "SIS-RT. "SIS-RT is designed to partially automate the software inspection processes. SIS-RT supports the analyses of traceability between a given set of specification documents. To make SIS-RT compatible for documents written in Korean, certain techniques in natural language processing have been studied [9]. Among the techniques considered, case grammar is most suitable for analyses of the Korean language [3]. In this paper, we propose a methodology that uses a case grammar approach to analyze the traceability between documents written in Korean. A discussion regarding some examples of such an analysis will follow.

Development of a Live-line Insulator Inspection Tool System for 154 kV Power Transmission Lines

  • Lee, Jae-Kyung;Park, Joon-Young;Cho, Byung-Hak;Oh, Ki-Yong
    • Journal of Electrical Engineering and Technology
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    • v.7 no.1
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    • pp.23-33
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    • 2012
  • The current paper deals with a new live-line insulator inspection tool system that will be used by the Korea Electric Power Corporation for its 154 kV power transmission lines in 2011. Unlike the existing contact type tools, the developed inspection tool automates parts of the insulator inspection process using a sensor and an actuator. The tool sustains its weight independently, not by a lineman. In addition, the inspection tool measures the insulation resistance of an insulator together with its distribution voltage, thus providing more information for analysis and diagnosis. Such characteristics improve the system's operation efficiency, measurement reliability, and usability. We confirmed its effectiveness through live-line field tests with actual power transmission lines.

A Study on the Analysis of Concrete Indurance Inspections Processes (IDEF0를 이용한 콘크리트 내구성 진단 프로세스 분석에 관한 연구)

  • Lee, Dong-Hun;Lee, Sang-Bum;Lim, Nam-Gi
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.9 no.2
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    • pp.113-120
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    • 2005
  • The purpose of this study is to suggest a method of concrete safety inspection management system for safety inspection. this research investigates the process of building safety inspection with IDEF0(Integration DEFinition) process modeling method, focusing on concrete durability inspection, and then suggests a data management system, which allows user communications between site and related unit with RDBMS(Relational Database Management System). The suggested system is expected to provide more efficient data sharing tools and consequently improve safety inspection's quality.

The Functional Analysis for Brake Operating Unit of EMU (전동차 제동장치 기능분석 연구)

  • Lee, Woo-Dong
    • Proceedings of the KIEE Conference
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    • 2008.10c
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    • pp.211-212
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    • 2008
  • There are many new technologies for EMU to secure the facilities' safety/validity and maintenance/economical efficiency and technologic competitiveness. For example, now the EMU is using the blending brake technology with electric brake and pneumatic brake and carrying the various performances such as jerk limitation, variable load and blending brake to stop the motor car safely and efficiently. Now we start applying such new methods, taking the whole inspection prior to the installation by analyzing systems' requirements and introducing various system engineering design tools. In this paper, we suggest how to reduce the errors by prelieminarly inspection for the brake facilities using the tools and inspect the needs to analyze the brake facilities' performances.

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A study on the measurement of rotary table error with 5-axis CNC machine (5축CNC공작기계의 회전테이블 오차 측정에 관한 연구)

  • SUH, S.H.;JUNG, S.Y.;LEE, E.S.
    • Journal of the Korean Society for Precision Engineering
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    • v.14 no.11
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    • pp.84-92
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    • 1997
  • The purpose of this study is to develop a geometric error model and path compensation algorithm for rotating axes of the 5-axis machine tools, by a method to calibrate a rotary table using one master ball and three LVDTs. It was developed a new methodology to measure 3 translation errors of the rotary table and with a compensation procedure for setup errors of the master ball. The method is experimentally verified using a ball-table and on-machine inspection method. The results showed that the geometric error models with the path compensation strategy can be practically used as a means for improving the accuracy of the machine tools with rotary table.

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Survey and Proposal of Plagiarism Inspection Supporting System for Cultural Contents (문화콘텐츠 진위 판정 지원 시스템의 고찰 및 제안)

  • Cho, Dong-Uk
    • The KIPS Transactions:PartD
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    • v.11D no.2
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    • pp.471-478
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    • 2004
  • This paper describes the plagiarism inspection supporting system of typical cultural contents or properties such as game programs, cultural contents of natural language documents and art works and proposes the cultural contents the plagiarism inspection supporting system For this, firstly, a survey of plagiarism inspection methods and tools for supporting Plagiarism inspection about programs, cultural contents of natural language documents are discussed. Secondly, the technical method for supporting plagiarism inspection of cultural art works by analyzing the drawing characteristics of authors is proposed. Finally, the experimental results show the effectiveness of this paper.

Design of the Mechanical System for the Cylindrical Workpiece Inspection System (원통형 공작물 검사장치의 기계장치 설계)

  • Whang, Hyun-Seok;Kim, Gab-Soon
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.18 no.2
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    • pp.22-28
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    • 2019
  • In this study, we describe the mechanical design of the cylindrical workpiece inspection system which that can inspect the workpiece machined in the CNC lathe. The workpiece automatic measuring device is composed of a workpiece aligning mechanism, a workpiece diameter measuring mechanism, and a workpiece height measuring mechanism. If the workpiece machined on the CNC lathe is placed on the pedestal of the cylindrical workpiece inspection system, the workpiece aligning mechanism moves the workpiece to the diameter-measuring position and the height- measuring positions, and the diameter-measuring mechanism and the height- measuring mechanisms sequentially measure the diameter and the height of the workpiece. The cylindrical workpiece inspection system was designed and manufactured. The characteristic experiment was conducted to confirm the operation of the machine tool of the cylindrical workpiece inspection system. As a The result of the characteristic test shows that, the workpiece automatic measuring device operated safely.

Development of Program for Qualitative Risk Based Inspection (RBI) using API-581 (API-581에 의한 정성적 위험기반검사(RBI) 프로그램 개발)

  • 이헌창;유준;김환주;김태옥
    • Journal of the Korea Safety Management & Science
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    • v.6 no.1
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    • pp.49-60
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    • 2004
  • Industrial facilities are becoming more complex and various with rapidly developing technologies. A number of installations and equipments are increased to improve productivity, and they are operated under the condition of high temperature and pressure. They are continuously repaired, replaced or abolished because of the deterioration with time, but their repair and replacement are not easy for economical and environmental concerns. If possible, the deteriorating equipments should be inspected and repaired effectively considering the state of maintenance and preservation, economic efficiency, and safety. That's where RBI(Risk Based Inspection) fits in. Even if RBI technology has been known among specialists, there were no tools readily available and it was hard to practice and apply RBI in industrial inspection and safety management. In the development of the qualitative RBI, the overall algorithm adopted API-581 BRD. The qualitative RBI program was developed to search the appling process.

Manufacturing of an All Composite Unmanned Aerial Vehicle (전기체 복합재 무인항공기 제작)

  • 김동민;허명규;강공진
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2002.05a
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    • pp.163-166
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    • 2002
  • For the development of an all composite unmanned aerial vehicle (UAV), manufacturing consideration in design phase, works for composite parts fabrication, subassembly and final assembly are summarized. In design phase, to maximize the advantage of composite material, manufacturing processes such as cocuring, cobonding and secondary bonding are introduced. For the curing of designed parts, composite tools are designed and manufactured. Assembly jigs are designed to satisfy dimensional tolerance of the structure. Inspection criteria are established and applied to the manufacturing. Technical data about inspection items and methods are summarized as manufacturing specifications for the mass production of the UAV structure.

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