• Title/Summary/Keyword: Test & Evaluation Process

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A Study on the Performance Evaluation of Heavy Duty Handling Robot using Laser Tracker (초 중량물 핸드링 로봇의 성능평가에 관한 연구)

  • Ko, Haeju;Jung, Yoongyo;Shin, Hyeuk;Ryou, Han-Sik
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.9 no.3
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    • pp.1-7
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    • 2010
  • The aim of this research is to evaluate movement and path characteristics of developed heavy duty handling robot using laser tracker(API T3) according to the ISO 9283 robot performance evaluation criteria. As carry out 3D modeling and simulation using CATIA, a test cube was set up to select moving and measuring range of robot. Performance test for pose and distance accuracy, path and path velocity accuracy under payload zero and 440kgf was accomplished. The resulted output data show the reliability of the developed robot.

The Study on the Quality Characteristic of Urethane Adhesive on the Cementing Process (시멘트제법에 대한 우레탄 접착제의 품질 특성에 관한 연구)

  • 양대용;김운섭;이종석;김영채;김형진;문세기
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.38
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    • pp.105-115
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    • 1996
  • According to the manual of shoemaking, the urethane adhesive for dress shoe applicable to the cementing process in KS G 3116 has been steadily developed. The evaluation test result of urethane adhesive, which is a mathematical model of men's shoe on shoemaking, is presented. Also, the quality test result of urethane adhesive, which is a list of experiment for field application and a model of assembling component in each unit process is introduced.

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A Decision Support System for the Selection of a Rapid Prototyping Process (쾌속조형공정 선정을 위한 지원 시스템)

  • 변홍석;이관행
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.5-8
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    • 2003
  • This paper presents a methodology to be able to select an appropriate RP system that suits the end use of a part. Evaluation factors used in process selection include major attributes such as accuracy, roughness, strength, elongation, part cost and build time that greatly affect the performance of RP systems. Crisp values such as accuracy and surface roughness are obtained with a new test part developed. The test part is designed with conjoint analysis to reflect users' preference. The part cost and build time that have approximate ranges due to cost and many variable parameters are presented by linguistic values that can be described with triangular fuzzy numbers. Based on the evaluation values obtained, an appropriate RP process for a specific part application is selected by using the modified TOPSIS(Technique of Order Preference by Similarity to Ideal Solution) method. It uses crisp data as well as linguistic variables, and each weight on the alternatives is assigned by using pair-wise comparison matrix. The ranking order helps the decision making of the selection of RP systems.

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A Study on Development of Test Process Improvement Model (테스트 프로세스 개선 모델 개발에 관한 연구)

  • Yang, Ju-Mi;Bae, Wook;Han, Hyuk-Soo;Shin, Seok-Kyoo;Kim, Kyoung
    • Annual Conference of KIPS
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    • 2005.05a
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    • pp.251-254
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    • 2005
  • 소프트웨어 품질의 중요성이 커짐에 따라, 기업들은 품질을 높이기 위해 테스트에 많은 노력을 기울이고 있다. 최근에는 테스트 성과를 높이기 위한 방법중의 하나로 테스트 프로세스 개선이 주목 받고 있다. 이를 위해 기업들은 SW-CMM(Capability Maturity Model for Software), CMMI(Capability Maturity Model Integration)와 같은 일반적인 프로세스 개선 모델들이나, TMM (Test Maturity Model), TPI (Test Process Improvement Model), TCMM (Testing Capability Maturity Model)과 같은 테스트 프로세스 개선 모델들을 적용하고 있다. 그러나 일반적인 프로세스 개선 모델들은 테스트 관련 이슈를 충분히 다루고 있지 않고, 테스트 프로세스 개선 모델들은 구조가 불완전하거나 내용이 충분하지 않아 적용 시 많은 어려움이 있다. 이에 본 논문에서는 TMM 과 CMMI 를 기반으로 조직들의 테스트 프로세스 확립이나 개선을 지원할 수 있는 새로운 테스트 프로세스 성숙도 모델인 TPMM(Test Process Maturity Model)을 연구, 개발하였다. 개발된 TPMM 을 통해 조직에서 테스트 프로세스를 개선하고, 심사하는 것을 지원할 수 있을 것으로 기대된다.

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A Study on the Optimum Evaluation Method for Tensile NOL Ring Specimen Manufactured by Filament Winding Process (Filament Winding에 의해 제조된 복합재료 NOL Ring시험편의 최적 인장강도 평가법에 관한 연구)

  • 김윤해;권술철;임철문
    • Composites Research
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    • v.14 no.2
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    • pp.8-12
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    • 2001
  • Filament Winding Process is a comparatively simple operation in which continuous reinforcements in the form of roving are wound over a rotating mandrel. It is well established and versatile method for storage tanks and pipes for the chemical and other industries. In this study, tensile strength of a filament wound ring specimens were evaluated by a split disk test fixture and a dress disk test fixture. The results obtained from experiments were compared with the theoretical values from the rule of mixtures. The purpose of this paper is the suggestion of an appropriate test method for the evaluation of tensile properties of filament wound structures. The tensile strength of a ring specimen tested by the dress disk test showed better agreement with the theoretical values than those tested by the split disk test because of higher stress concentration in edges of a split disk test fixture. The results showed that the tensile strength of a ring specimen was influenced by the geometry of test fixture, the continuity of fibers, fiber-tension, fiber-end and stress concentration in specimen.

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A development of test and evaluation equipment for pulsed doppler radar (펄스도플러 레이더 시험장치 개발)

  • 신현익;이정욱
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.7
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    • pp.154-162
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    • 1996
  • The test and evaluation is a integal part of the radar development process and it consists of two parts, field test and in-house test using a standard simulated signal. To take the in-house test, the test environment is needed to generate the critical signal that is used to determine the system design parameters and consists of general urpose measurement equipments, specialized boards and operating softwares. This paper presents the in-house test environment configuration and its function for radar system. Because this test environment genrates the simulated radar signal which has arbitrary flight path and target condition, the developed test environment makes easily to evaluate the function for radar system. The program ability of test parameters makes it possible to apply a test for 2D and 3D radar system.

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Performance Evaluation of Compressor to Develop 500W Class Ultra-Micro Gas Turbine (500W급 초소형 가스터빈 개발을 위한 압축기 성능 평가)

  • Seo, JeongMin;Park, Jun Young;Choi, Bum Seok;Park, Moo Ryong
    • The KSFM Journal of Fluid Machinery
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    • v.15 no.6
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    • pp.51-57
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    • 2012
  • Performance evaluation of a compressor is conducted to develop 500W class ultra-micro gas turbine (UMGT) for power generation. The performance evaluation is essential to check the performance of the components of UMGT, a radial turbine, a centrifugal compressor, an angular combustor and a shaft, which have been already designed in previous researches. The purpose of this study is to introduce the development process of the performance testing equipments of the UMGT and to present the results of compressor performance test. For the performance evaluation of the compressor, two test equipments are developed and the initial test equipment uses commercial static air bearings with long shaft. In the improved test equipment, static air bearing is improved to increase rotating speed and compressed nitrogen gas is used for utility gas of the static air bearing to supply compressed air in a stable and steady way. To increase rotating speed to 320,000 rpm, 80% speed of design speed, compressed air is provided to the turbine. The performance map of the compressor with the 50%, 60%, 70%, 80% speed of design point is presented. The results of the performance test of compressor show a good agreement with the results of 3D CFD.

Project Selection & Evaluation System Design and Implementation-Literature Review and Case Study- (연구과제 선정.평가 체계설계에 관한 연구)

  • 용세중;최덕출;한종우;정용훈;이원영
    • Journal of Technology Innovation
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    • v.2 no.1
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    • pp.116-141
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    • 1994
  • This paper presents a model for R&D project selection and evaluation system design developed through literature review. The model emphasizes the fitness between the five elements of the system : evaluation phase and purpose, personnel and organization, evaluation critiria and decision model, evaluation form and procedure, and projects. The model was applied in real situation as a test case. The important findings are that a good project selection and evaluation model contributes only partially to the effectiveness of the project selection and that system development and implementation activity is a dynamic and multi-facetted learning process.

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A Study on Noise Certification Evaluation of Hybrid VTOL UAV by Wind Tunnel Test and Flight Test (풍동실험 및 비행시험을 통한 복합형 VTOL 무인기 소음인증 평가에 대한 연구)

  • Ryi, Jaeha;Choi, Jong-Soo
    • Journal of Aerospace System Engineering
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    • v.14 no.spc
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    • pp.39-48
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    • 2020
  • This paper deals with the process of estimating the environmental noise generated from the actual flying aircraft using the noise measurement results obtained through the wind tunnel test and verifying it through flight tests. In order to evaluate the environmental noise of an aircraft, noise tests and evaluations are generally conducted according to the procedures prescribed by the International Civil Aviation Organization (ICAO). In this paper, we introduced environmental noise evaluation method that can be applied to composite both fixed-wing aircraft and multi-copter, and introduced the evaluation method by experiment. This paper introduces the process of simulating the noise test results measured in the wind tunnel test using real flight test results. In addition, in consideration of flight operating conditions and noise measurement methods proposed by the ICAO, the effective perceived noise level (EPNL) was predicted by performing both the wind tunnel test and the aircraft flight test.

On the Project Risk Management based on the Test and Evaluation Process in the Weapon Systems Development (무기체계 개발에서 시험평가 프로세스를 통한 프로젝트 위험관리)

  • Sim, Sang-Hyeon;Lee, Jae-Cheon
    • Proceedings of the Safety Management and Science Conference
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    • 2013.11a
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    • pp.603-613
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    • 2013
  • 최근 현대 무기체계는 최첨단 기술로 인한 무기체계 개발 속도 증가와 획득환경의 다변화와 더불어 이에 대한 위험도 동시에 증가하고 있다. 이에 따라 미국방부는 무기체계의 수명주기를 고려하여 시험평가를 지속 적용토록 강조하고 있다. 따라서 기존의 무기체계 시험평가 프로세스에서 다루는 시스템 설계에 대한 위험 관리 활동의 강화의 필요성 역시 강조되고 있다. 그 중에서도 무기체계 개발의 탐색개발 및 체계개발단계는 양산에 들어가기 전의 최종 활동으로서 제대로 수행되어야만 초기에 의도한 무기체계 개발의 목적을 달성할 수 있을 것이다. 본 논문에서는 위험 관리 활동을 고려한 시험평가 프로세스의 개선사항 도출과 모델링을 통해 무기체계 시스템인 무기체계를 대상으로 적용 및 조정 구축에 대한 내용을 기술하고 있다. 본 연구의 결과를 토대로 향후 시험평가 시 위험관리에 대한 투자를 통해 전체 프로젝트의 기간 단축 및 비용 절감과 안전성 확보를 개선시킬 수 있을 것으로 기대된다.

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