현재 교량과 같은 토목구조물의 설계프로세스는 1차 설계 후 구조 검토를 수행하여 기준에 부적합할 경우 재설계하는 과정을 반복 하여 최종적인 성과품을 만드는 것이 일반적이다. 이러한 반복 과정은 설계에 소요되는 기간을 연장시키는 원인이 되며, 보다 수준 높 은 설계를 위해 투입되어야 할 고급 엔지니어링 인력을 기계적인 단순 반복 작업에 소모하고 있다. 이러한 문제는 설계 과정 자동화를 통하여 해결할 수 있으나, 설계 과정에서 사용되는 해석프로그램은 이러한 자동화에 가장 큰 장애요인이 되어 왔다. 본 연구에서는 기 존 설계 과정 중 반복작업을 대체하고자 강화학습 알고리즘과 외부 해석프로그램을 함께 제어할 수 있는 인터페이스를 포함한 교량 설계 프로세스에 대한 AI기반 자동화 시스템을 구축하였다. 이 연구를 통하여 구축된 시스템의 프로토타입은 2경간 RC라멘교를 대 상으로 제작하였다. 개발된 인터페이스 체계는 향후 최신 AI 및 타 형식의 교량설계 간 연계를 위한 기초기술로써 활용될 수 있을 것 으로 판단된다..

최근에 각광받고 있는 3D BIM기반 철근 물량 산출 현황을 살펴보면 상용 BIM 도구들이 철근 모델링 기능을 제공하지만 그 기능을 이용해서 철근을 모델링하려고 하면 방대한 양의 모델링 시간이 소요가 되어 현재 실용적으로 사용할 수 있는 BIM 소프트웨어는 없다. 본 연구에서는 BIM 기반 설계 현업에서 실용적인 철근 물량 산출 프로세스를 정리 및 제시하고, 초기설계단계의 단면 정보가 없는 상태에서 기존의 2D방식에 비하여 보다 정확하게 기동, 보, 슬래브, 벽체의 철근 단면 정 보를 자동으로 배근해주는 프로그램인 Rebar Automatic Arrangement Program(이하 RAAP)을 개발하였다. 본 연구 결과는 건설프로젝트의 초기 설계단계에서 설계 진행상 구조 부재 단면 설계가 완료되지 않은 상태의 골조 물량 산출 시 적은 노력 으로 기존의 2D기반 방식보다 신뢰성을 향상시킨 물량을 산출할 수 있는 기술로 발전시키는데 의미가 있으며, 합리적인 초 기 설계단계의 물량 산출 프로그램을 구축할 수 있는 기초 연구로서 활용될 수 있을 것으로 기대된다.

Developing two process models to simulate wastewater treatment process is needed to draw a comparison between measured BOD data and estimated process model data: a mathematical model based on the process mass-balance and an ANN (artificial neural network) model. Those two types of simulator can fit well in terms of effluent BOD data, which models are formulated based on the distinctive five parameters: influent flow rate, effluent flow rate, influent BOD concentration, biomass concentration, and returned sludge percentage. The structuralized mass-balance model and ANN modeI with seasonal periods can estimate data set more precisely, and changing optimization algorithm for the penalty could be a useful option to tune up the process behavior estimations. An complex model such as ANN model coupled with mass-balance equation will be required to simulate process dynamics more accurately.

For the sustainable development, companies are making a lot of efforts such as activities of sales increase and cost reduction. Among these, efforts to use limited resources efficiently and effectively is still being made steadily. And many methods for management innovation are being introduced and used. However there were partial or temporary effects only. So there are not enough to achieve operations performance to cover the entire system. Therefore, in order to maximize performance or to improve sustainability across the companies, it is necessary to rebuild the existing system with process perspective not with existing functional perspective. This study was performed to achieve the objective that is operation performance improvement of certification body. So literature review was researched and analyed about the process innovation and the process approach. And basic model which is compatible with ISO/IEC 17021 requirement for the certification body was established in this study. Based on this model, one of the certification body was selected and operation system for this organization was established, documented and implemented through the process approach method. In the result, operations performance of certification body on the side of efficiency and effectiveness is analyzed and the effect of reconstruction of system on operations performance was figu

System is the organization of hardware, software, personnel and facilities needed to perform a designated function within a stated environment with specified results. The trend of modern systems is getting more complex and larger. The system is necessary for modern society but the minor malfunction of the system can result the enormous human and material losses. Recently it is being heightened the concern for system safety and required to be built and applied Safety Engineering standard Guideline for safety of complex and large-sized system. This paper describes the System Engineering Process model integrated with Safety Engineering and the establishment of standard safety guidelines for safety of product development using DMADOV Methodology of the Lean 6 Sigma.

The recent trend in modern systems development can be characterized by the increasing complexity in terms of both the functionality and HW/SW scale that seems to be accelerated by the growing user requirements and the rapid advancement of technology. Among the issues of complexity, the one related to systems safety has attracted great deal of attention lately in the development of the products ranging from mass-transportation systems to defence weapon systems. As such, the incorporation of safety requirements in systems development is becoming more important. Note, however, that since such safety-critical systems are usually complex to develop, a lot of organizations and thus, engineers should participate in the development. In general, there seems to be a variety of differences in both the breadth and depth of the technical background they own. To address the problems, at first this paper presents an effective design process for safety-critical systems, which is intended to meet both the systems design and safety requirements. The result is then advanced to obtain the models utilizing the systems modeling language (SysML) that is a de facto industry standard. The use of SysML can facilitate the construction of the integrated process and also foster active communication among many participants of diverse technical backgrounds. As a case study, the model-based development of high-speed trains is discussed.

The aims of the study are first, in other to meet the demand for a new product design process, to review the prototype theory and to find out the conceptual structure of product aesthetics, which is another properly thought to be as important as the typical pattern in an effort to patch up the theory second to help designers overcome the limits of idea generation and create consumer oriented designs with a high success rate by setting up a new product design process that is established through the application of the aesthetically influential factor 'proportion'based on the preceeding studies that tested product aesthetics measuring devices. In other words, this study tries to find out product categories, making use of the prototype theory to introduce an ideal proportion for product design, recognizing the importance of proportion by conducting product pattern analysis: to create a differentiated method that can product consumer oriented designs, even if it only manipulate proportion and to establish a new design process that can systematically explain the methodology for various form generation that applies proportion. This study reviews the theoretical aspects of concepts pertaining to the above … and, based on them, empirically tests them by patting to use the programs, for proportion manipulation. This study was conducted in the following way: To begin with, this study takes out proportion out of some aesthetically influential factors that has a great impact on the way consumers prefer certain product designs and tries to see how proportion affects the consumer preference when consumers select a product. In addition, we could analyze the difference between the ideal proportion that consumers prefer and the traditional golden proportion produced through theoretical studies. The correlations between preferred proportion and ideal proportion, and preferred proportion and golden proportion could be shown. In order that we may create form variations through more detailed proportion manipulation on the basis of the ideal proportion verified as preferable, we again applied the proportion factor to the process utilizing PDS(proportion Distortion System). In the way the restraint of form generation could be pursued. All in all, this study makes an attempt to set up a design process to create new product forms through the application of Proportion.

미국프로젝트관리협회(Project Management Institute)에서는 리스크의 형태를 외부 리스크(External Risk)와 내부 리스크(Internal Risk)로 구분 하고 있다. 외부 리스크는 프로젝트에서 통제가 불가능한 리스크로 정책 및 관련제도 변화, 기후 및 자연재해, 환율 등이다. 내부 리스크는 사업 자체에 존재하는 리스크로, 프로젝트내부에서 통제가 가능한 항목들이다. 프로젝트 관리상의 기술적 위험은 비용, 품질, 시간, 안전, 환경이다. 따라서 건설프로젝트의성공적인 수행을 위해서는 외부 리스크와 내부 리스크를 모두 관리해야 하며, 특히 기술적 리스크 관 리를 통하여 시설물의 품질과 안전을 확보할 수 있다. 특히 다수의 시설물로 구성된 복합 시설물은 다수의 단위프로젝트로 구성되어 있고, 다 양한 참여주체 및 이해관계자간 갈등이 존재하기 때문에 잠재 리스크에 대한관리의 중요성이 대두되고 있으며, 리스크 관리의 부재는 사업 지 연 및 공사비 증가와 더불어 시설물의안전에도 부정적 영향을 미친다. 본 연구는 복합 시설물의 안전성 확보를 위한 사업관리 측면의 리스크관 리 프로세스 구축 방안의 제시를 목적으로 수행하였다. 이를 위해 리스크 관리 프로세스의 구축 절차를 제시하고, 각 단계별 활용 가능한 리스 크 정보로서, 건설프로젝트에 내재된 리스크의 유형 및 요인, 그리고 대응 전략을 제시하였다.

Although understanding and interesting of safety and maintenance on domestic facilities are important, there is little recent on a comprehensive and integrated survey of actual condition. Therefore this study asserts the necessity of the survey methodology. The purpose of this study is to investigate current situation and to suggest integrated facility breakdown structure, and to establish survey process of actual condition on domestic infrastructure facilities and buildings.