조선 선체 생산설계 프로세스의 BPM 실행모델 구현

손명조(Myeong-jo Son),김태완(Tae-wan Kim) (사)한국CDE학회 2012 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2012 No.2

Shipbuilding industries has adopted the IT convergence to the shipbuilding as the new engine for growth. 3D CAD System and the enterprise IT such as the ERP, the PLM have been customized and built in the shipyards to increase the productivity. As the part of the IT convergence in the shipbuilding industries, we deal with the adoption of the business process management (BPM) to a ship hull production design process. A ship hull production design which is the process-based task requires most man-hours (M/H) amongst whole ship design processes and is coupled with a ship production directly so that it could contribute largely to a productivity enhancement. At first, we describe the concept of the BPM execution model that is the key condition to execute the developed processes in the BPMS. And, we explain a hull production design process and how to model this on the basis of a business process and how to implement as the BPM execution model. In addition, we suggest the benefits and expected improvements in a hull production design process by the BPM execution. The BPM executable model of the hull production design process has been implemented and executed using the Bonita Open Solution 5.5 that is one of the representative open source BPMS.

해상풍력발전의 모노파일 하부구조물 이송과 설치를 위한 일정계획 및 비용 분석 시뮬레이션

손명조(Myeong-Jo Son),김태완(Tae-wan Kim) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.2

온실가스 감축과 청정에너지 개발로 인해 대체에너지 연구와 개발이 활발하게 진행되고 있고, 그 가운데 하나가 풍력에너지이다. 풍력에너지가 활발하게 개발되고 있는 유럽에서는 양질의 바람으로부터 안정적으로 발전을 할 수 있고, 소음 공해로부터 자유로운 해상풍력발전이 본격적으로 개발, 건설되고 있으며, 그 비중이 점차 증가할 것으로 전망되고 있다. 본 연구는 앞으로 조성될 국내 해상풍력발전을 위하여, 해상풍력발전 플랫폼의 이송과 설치 프로세스를 분석하고 시뮬레이션하고자 한다. 다양한 이송수단과 설치수단에 대한 개략 모델을 생성하고, 다양한 이송 및 설치 시나리오에 대해서 이산사건 시뮬레이션을 수행하여 일정계획과 비용분석을 그 결과로 제시하고자 한다. 이를 위한 기초연구로서, 해상풍력발전의 하부구조물로 가장 많이 사용되고 있는 모노파일 (Monopile)의 이송 및 설치 시뮬레이션을 구성하고 수행하였다.

중일정계획을 고려한 선체 생산설계 작업할당 시뮬레이션

손명조(Myeong-Jo Son),김태완(Tae-Wan Kim) 대한조선학회 2013 大韓造船學會 論文集 Vol.50 No.5

BPM 기반의 조선 선체 생산설계 업무할당

손명조(Myeong-jo Son),김태완(Tae-wan Kim) (사)한국CDE학회 2012 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2012 No.2

As the part of IT convergence in the shipbuilding industries, we deal with the adoption of the business process management (BPM) to a ship hull production design process. A ship hull production design which is the processbased task requires most man-hours (M/H) amongst whole ship design processes and is coupled with a ship production directly so that it could contribute largely to a productivity enhancement. Thus, we analyzed the hull production design task in the perspective of the business process so that we generated the BPM models of a manager and a design engineer, respectively. Especially in a manager process, we have implemented optimal assignment method as a part of the decision support system that helps a manager to make an assignment of hull blocks to design engineers efficiently in the BPMS (BPM system). In this paper, we suggest the concept of the block standard design M/H and the variable design M/H of a design engineer for the production design optimal assignment method. According to this concept, we modeled a design engineer and a block and computed the estimated M/H using these models and their mutual interaction. To make the assignment that minimizes total required M/Hs in the production design, we adopted Hungarian Algorithm. The BPM executable model of the hull production design process has been implemented using the Bonita Open Solution 5.5 that is one of the representative open source BPMS.

조선 선체 생산설계 일정 계획을 위한 이산사건기반 비즈니스 프로세스 시뮬레이션

손명조(Myeong-Jo Son),김태완(Tae-wan Kim) (사)한국CDE학회 2013 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2013 No.1

For the scheduling and the job assignment of the ship hull production design which is a process-based work, we suggest the simulation-based scheduling using the discrete-event-based business process simulation. First, we analyze the ship hull production design process from the perspective of a job assignment to make it into the simulation model using DEVS (Discrete Event System Specification) which is the representative modeling method for a discrete-event simulation. Based on the APIs of the open-source discrete-event simulation engine, we implement the simulation using the Groovy script. We develop the scenario generator in which the user defines detail information of the construction drawing and its member blocks, and design engineers information, and the various setting for the simulation including the job assignment strategy. We use the XML files from this scenario generator as inputs of simulation so that we can get simulation result in forms of Gantt chart without changes of the simulation model.

조선 기본구조설계 단계에서의 3D CAD/CAE 인터페이스 개발

손명조(Myeong-Jo Son),이정렬(Jeong-Youl Lee),박호균(Ho Gyun Park),김종오(Jong-Oh Kim),우정재(Jengjae Woo),이정현(JoungHyun Lee) (사)한국CDE학회 2016 한국CDE학회 논문집 Vol.21 No.2

The finite element modeling of a ship for hull structural analysis on the basis of new harmonized common structural rules (CSR-H) is to be extended to the cargo holds in fore and after body of a ship. Unlike the parallel middle-body where the external and internal features of hull are equal along to the longitudinal direction of a ship, in fore and after body, the external and internal features of hull vary linearly or even irregularly in forms of a surface or a curve along to the longitudinal direction of a ship. Thus, it needs lots of design man-hours for the modeling for structural analysis. In order to save man-hours in initial structural design phase of a ship, the specified 3D CAD system has been adopted in shipbuilding industry. Through the interface between CAD and CAE (rule scantling and direct strength assessment), design man-hour in initial design phase can be saved even under the environment of CSR-H.

조선 선체 생산설계 일정 계획을 위한 상세 이산사건 모델링기반 비즈니스 프로세스 시뮬레이션

손명조(Myeong-Jo Son),김태완(Tae-wan Kim) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.3

For the scheduling and the job assignment of the ship hull production design which is a process- based work, we suggest the simulation-based scheduling using the discrete-event-based business process simulation. First, we analyze the ship hull production design process from the perspective of a job assignment to make it into the simulation model using DEVS (Discrete Event System Specification) which is the representative modeling method for a discrete-event simulation. Based on the APIs of the open-source discrete-event simulation engine, we implement the simulation using the Groovy script. We develop the scenario generator in which the user defines detail information of the construction drawing and its member blocks, and design engineers information, and the various setting for the simulation including the job assignment strategy. We use the XML files from this scenario generator as inputs of simulation so that we can get simulation result in forms of Gantt chart without changes of the simulation model.

AVEVA Marine 블록모델의 재사용을 위한 Scheme 기반 모델링

손명조(Myeong-Jo Son),강형우(Hyungwoo Kang),김태완(Tae-wan Kim) (사)한국CDE학회 2013 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2013 No.1

For the reuse of the existing 3D block model of a ship, we analyze the hull modeling process using AVEVA marine which is a representative CAD (Computer-Aided Design) system for the shipbuilding. In the AVEVA marine environment where the design engineer makes 3D model on the 2D view that is so-called 2.5D, it cannot be possible to copy to reuse the block model just simply copying the 3D feature model itself like in the general mechanical CAD system or Smart Marine 3D which is based on the 3D model representation. In this paper, we analyze the Scheme file where the 3D model is defined in AVEVA marine so that we develop the program for the block copy and translation using this Scheme file. It is significant that this program can be immediately available as a real-world application on the AVEVA marine environment.

스크립트 임베딩을 활용한 수중운동체 M&S 전술처리기의 기능 확장

손명조,김태완,나영인,Son, Myeong-Jo,Kim, Tae-Wan,Nah, Young-In 한국군사과학기술학회 2009 한국군사과학기술학회지 Vol.12 No.5

In the simulation of underwater vehicles such as a submarine or a torpedo, various type of simulations like an engineering level simulation for predicting the performance precisely and an engagement level simulation for examining the effectiveness of a certain tactic is required. For this reason, a tactics manager which can change the behavior of a simulation model according to external tactics is needed. In this study the tactics manager supporting a script language and engine which can represent various tactics and can help users define external input tactics for the tactic manager easily is suggested. Python and Lua which are representative among script languages have been compared and analyzed from the viewpoint of a tactic manage, and the tactic manger using the script engines of those script languages was implemented. To demonstrate the effectiveness of the tactic manager, a target motion analysis simulation of the warfare between a submarine and a surface ship.

직접구조강도 평가를 위한 선체 국부구조 상세요소분할모델 자동생성

손명조(Myeong-Jo Son),우정재(Jeong-Jae Woo),박호균(Ho Gyun Park),이정렬(Jeong-Youl Lee) (사)한국CDE학회 2017 한국CDE학회 논문집 Vol.22 No.3

Under the circumstances of Common Structure Rules for Bulk Carrier and Oil Tanker (CSR-H; Harmonized Common Structure Rules) which is on effective from July 2015, the modeling area for finite element (FE) has been extended to forward and afterward cargo hold regions of a ship, more design man-hours are required in the FE modeling than that of previous rules. In addition, it is mandatorily required to generate the fine-mesh model for hot spot zones, but the target area has been extended so extensively, more design man-hours are required for fine-mesh modeling than that of coarse mesh modeling. Moreover, the local area for fatigue analysis should be modeled with very fine-mesh. However, these kinds of FE modeling for different level of detail and different purpose of analysis are time consuming and repetitive works. In this research, we would like to introduce the auto fine mesh modeling functionality that can generate fine-mesh and very-fine mesh model from the coarse mesh model, and retrieve and restore them to coarse mesh for certain purpose by re-mesh functionality. Through this process, FE model can be managed and reused with a consistent FE model from the initial design stage to detailed design stage of a ship.