• 제목/요약/키워드: performance evaluation and design

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Response Modification Factors for Seismic Performance Evaluation of Non-seismic School Buildings with Partial Masonry Infills (조적허리벽이 있는 비내진 학교시설의 내진성능평가를 위한 반응수정계수)

  • Kim, Beom Seok;Park, Ji-Hun
    • Journal of the Earthquake Engineering Society of Korea
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    • v.23 no.1
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    • pp.71-82
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    • 2019
  • Most school buildings consist of reinforced concrete (RC) moment frames with masonry infills. The longitudinal direction frames of those school buildings are relatively weak due to the short-column effects caused by the partial masonry infills and need to be evaluated carefully. In 'Manual for Seismic Performance Evaluation and Retrofit of School Facilities' published in 2018, response modification factor of 2.5 is applied to non-seismic RC moment frames with partial masonry infills, but sufficient verification of the factor has not been reported yet. Therefore, this study conducted seismic performance evaluation of planar RC moment frames with partial masonry infills in accordance with both linear analysis and nonlinear static analysis procedures presented in the manual. The evaluation results from the different procedures are compared in terms of assessed performance levels and number of members not meeting target performance objectives. Finally, appropriate response modification factors are proposed with respect to a shear-controlled column ratio.

Using Support Vector Machine Method to Improve Company Performance Management

  • Yuanhao LI;Xin LI;Han XIA
    • Asian Journal of Business Environment
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    • v.13 no.4
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    • pp.1-6
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    • 2023
  • Purpose: To explore the application prospect of support vector machine (SVM) in supply chain management and its practical application in supply chain performance evaluation practice. Research design, data and methodology: This paper establishes the performance evaluation index system of supply chain management according to the balanced scorecard (BSC) theory, and establishes the SVM model of supply chain management performance evaluation based on the SVM principle. Results: The performance evaluation results of the supply chain of an electric power equipment Co., Ltd. in Harbin established by using the model are consistent with the actual situation, which indicates the nature and accuracy of the possible reflection of the established supply chain performance evaluation model. Conclusions: The results show that SVM model can be used to evaluate enterprise supply chain management performance indicators, and can improve enterprise supply chain management performance, thus demonstrating the effectiveness of the model.

The Study of Optimal Performance Improvement Method for Aircraft of Various Variants within the Same Type (다양한 형상의 동일 기종 항공기에 대한 성능개량 최적 구현 방안 연구)

  • Kim, Youngil;Ahn, Seungbeom;Choi, Myeongseok
    • Journal of the Korea Institute of Military Science and Technology
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    • v.25 no.3
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    • pp.311-320
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    • 2022
  • In this paper, we studied the optimal method of improving performance for aircraft having various variants within the same type. The study defined configuration of an entire fleet of aircraft being subject to a performance improvement program. And selected the most complicated aircraft configuration among them as a Standard Aircraft for modification by according to the proposed Aircraft Selection Process for developing an optimal Aircraft Performance Improvement Process. Based on the selected the Standard Aircraft, drew a system integration design result and carried out Evaluation Test and obtained Airworthiness Certification. Created the database with the design data of the Standard Aircraft, Evaluation Test, and Airworthiness Certification results, and applied it to variants of aircraft to complete the performance improvement program with optimized schedules and costs. By applying the proposed method to IFF performance improvement program, drew optimal system integration design and completed the program with minimized schedule.

A Study on Evaluation Method and Matching Process Model for Interior Design Firms (실내디자인업체 평가 및 선정 프로세스 모델에 관한 연구)

  • 정선영;이현수;최용의;김인한
    • Korean Institute of Interior Design Journal
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    • no.25
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    • pp.280-289
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    • 2000
  • The purpose of this study is to suggest a evaluation method and matching process model which derives suitable design firm for a client. Unlike the existing evaluation method, the suggested evaluation method and matching process for interior design firm allows a client specify his own needs. The evaluation methods utilizes designers experience record, past performance and customers post occupancy evaluation to derive design firms meeting clients requirements. With this method and matching process model, customers could access the design firms more efficiently and the design firms suitable for the clients needs could be suggested.

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A Knowledge-based Design System for Injection Molding

  • Huh, Yong-Jeong
    • Journal of the Microelectronics and Packaging Society
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    • v.8 no.3
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    • pp.11-17
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    • 2001
  • The design and manufacture of injection molded polymeric parts with desired properties is a costly process dominated by empiricism, including the repeated modification of actual tooling. This paper presents an expert design evaluation system which can predict the mechanical performance of a molded product and diagnose the design before the actual mold is machined. The knowledge-based system synergistically combines a rule-based expert system with CAE programs. Heuristic knowledge of injection molding is formalized as rules of an expert consultation system. The expert system interprets the analytical results of the process simulation, predicts the performance, evaluates the design and generates recommendations for optimal design alternatives.

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A Study on the Development of Traction Motor for Electric Railway: Insulation System Design & Performance Test

  • Wang, Jong-Bae
    • Transactions on Electrical and Electronic Materials
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    • v.2 no.4
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    • pp.19-23
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    • 2001
  • In this paper, design considerations and manufacturing procedure of 200 class insulation system with polyimide(Kapton) main insulation and silicone resin VPI process on the traction motor thor EMU will be reviewed. The performance test and the long life evaluation test that prove stability and reliability of Insulation system for traction motor will also be introduced.

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A Study on the Evaluation of the Patient Spatial Satisfaction for the Architectural Planning of the Women's Hospital (여성전문병원 건축계획을 위한 환자공간만족도 평가에 관한 연구)

  • Ju, Jin Hyeung;Park, Jae Seung
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.9 no.1
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    • pp.43-51
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    • 2003
  • The purpose of this study is to find out the design guideline for women's hospital focusing on the patient needs. This study is performed the literature review of the performance evaluation & spatial satisfaction. And then, the spatial characteristics of selected women's hospitals, which were recently built in Korea, were analyzed. This study is suggested in the spatial satisfaction evaluation model in order to the spatial evaluation performance elements of the patient needs. The evaluation model of space efficiency derived from this study is expected to be used for the actual guide to architecture of women's hospitals as substantial materials. Finally, the model is used to for the planning & design for the future women's hospital.

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SDL-OPNET Model Conversion Technique for the Development of Communication Protocols with an Integrated Model Design Approach (통합 모델 설계 방식 기반 통신 프로토콜 개발을 위한 SDL-OPNET 모델 변환 기법)

  • Kim, Jae-Woo;Kim, Tae-Hyong
    • IEMEK Journal of Embedded Systems and Applications
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    • v.5 no.2
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    • pp.67-76
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    • 2010
  • Although both functional verification and performance evaluation are necessary for the development of effective and reliable communication systems, they have been often performed independently; by functional modeling with formal language tools and by performance modeling with professional network performance evaluation tools, respectively. Separate and repeated modeling of one system, however, would often result in cost increase and inconsistency between the models. This paper proposes an integrated model design approach in order to overcome this problem that evaluates the performance of a communication protocol designed in SDL with SDL-OPNET model conversion. The proposed technique generates OPNET skeleton code from Tau-generated C code of the SDL model by analyzing the relations between SDL and OPNET models. IEEE 802.2 LLC protocol was used as an example of model conversion to show the applicability and effectiveness of the proposed technique.

Optimal Design and Die Manufacturing of an Axial Fan for Cooling Towers (냉각탑용 축류팬 설계 및 금형제작의 자동화)

  • Kang, Jae-Gwan;Lee, Hak-Sun;Oh, Kun-Je;Jung, Jong-Youn
    • IE interfaces
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    • v.13 no.4
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    • pp.717-724
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    • 2000
  • In this paper, an integrated system of optimal design, performance evaluation, and die design and manufacturing of axial fans for cooling tower is presented. The design and performance evaluation are developed based on three dimensional flow analysis so as to ensure low noise and high efficiency. The methodologies are implemented on computer as a GUI system including 3-D surface modeling and 2-D drawing file output modules. The CAD/CAM system is engaged to design the die and generate NC tool path, but the processes are also automated and integrated into the system by means of a part program coded from the design data. It is shown that the newly developed fans have superior performance and shortened lead-time compared to the existing dead-copied fans.

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A Study on Evaluation of Performance Point for the Latticed Dome (래티스 돔의 성능점 산정에 관한 연구)

  • Han Sang-Eul;Lee Sang-Joo;Gan Eun-Young
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2006.04a
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    • pp.317-324
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    • 2006
  • Performance-based design concept is needed to evaluate the seismic capacity of building. In this study, the method estimating the performance point of the spatial structures based on capacity spectrum method (CSM) is proposed. And for efficient evaluation for the performance point of the spatial structures, the algorithm to convert spatial structural system to ESDOF system is simulated Its efficiency is confirmed by comparing with time history analysis of full model. And dynamic behaviors of spatial structures are examined by using this method. At last, evaluation of structural performance according to variation of stiffness after plastic deformation on the substructures is carried out.

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