• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2005.06a
• /
• pp.1326-1331
• /
• 2005

A product is designed through the collaboration among engineers in several fields such as design, analysis, and manufacturing. These series of functions are performed repeatedly during the design process. An easy access and exchange of the model data is one of the important elements that help to shorten production development time. Especially, the importance of data exchange between CAD and CAE applications is increasing in the field of verification and estimation of the products. However, information and knowledge of model which is generated by a CAD software cannot be transferred by a function of CAE software, as an exchange of product data between CAD and CAE applications. It causes a delay in design analysis and eventually discourages a designer's effort in improving his design. Therefore, we need to integrate a commercial CAD and CAE applications effectively and to use the same interface on a product model obtained in a distributed environment. This paper shows how to implement a model exchange between CAD and CAE by a web-service and how to provide a communication environment among engineers.

• Journal of the Korean Society for Precision Engineering
• /
• v.23 no.12 s.189
• /
• pp.95-102
• /
• 2006

A product is designed through the collaboration among engineers in several fields such as design, analysis, and manufacturing. These series of functions are performed repeatedly during the design process. An easy access and exchange of the model data is one of the important elements that help to shorten production development time. Especially, the importance of data exchange between CAD and CAE applications is increasing in the field of verification and estimation of the products. However, information and knowledge of model which is generated by a CAD software cannot be transferred by a function of CAE software, as an exchange of product data between CAD and CAE applications. It causes a delay in design analysis and eventually discourages a designer's effort in improving his design. Therefore, we need to integrate a commercial CAD and CAE applications effectively and to use the same interface on a product model obtained in a distributed environment. This paper shows how to implement a model exchange between CAD and CAE by a web-service and how to provide a communication environment among engineers.

• Journal of Ship and Ocean Technology
• /
• v.10 no.2
• /
• pp.11-23
• /
• 2006

The model exchange from CAD system to CAE system in valid and effective manner is the major issue of automatic analysis modelling of ship structure. However, model exchange approaches based on the neutral CAD file have resulted in invalid model exchange that could not properly reflect the characteristics of CAD model and CAE model of ship structure. This paper presents the new approach of n-to-n mapping to exchange ship structure model in heterogeneous CAD/CAE environments. In this study, the common model called 'unified ship model for analysis' to directly extract proper information from different CAD systems for ship structural analysis is proposed. Moreover, a command language based model interfacing technique to construct an idealized model for analysis job is also proposed. The proposed approach has been actually implemented in DSME CAD/CAE environment of ship structure such as TRIBON system, PATRAN system and FLUENT system. The applicability and effectiveness of the proposed approach was verified by applying it to the real analysis project for fore-body of ship and block lifting. This application results show that the proposed approach can be effectively used for heterogeneous CAD/CAE environment.

• JSTS:Journal of Semiconductor Technology and Science
• /
• v.5 no.4
• /
• pp.221-228
• /
• 2005

In this work, our goal is to develop a fast and accurate power model of the ARM926EJ-S processor in the industrial design environment. Compared with existing work on processor power modeling which focuses on the power states of processor core, our model mostly focuses on the cache power model. It gives more than 93% accuracy and 1600 times speedup compared with post-layout gate-level power estimation. We also address two practical issues in applying the processor power model to the real design environment. One is to incorporate the power model into an existing commercial instruction set simulator. The other is the re-characterization of power model parameters to cope with different gate-level netlists of the processor obtained from different design teams and different fabrication technology.

• Journal of KSNVE
• /
• v.11 no.2
• /
• pp.200-206
• /
• 2001

자동차의 심장부라고 할 수 있는 엔진의 설계 개발에 있어서 CAE(computer aided engineering)의 활용이 개발비용 및 기간 단축과 설계 품질의 향상에 효과적이며, CAE가 제품개발의 조기에 수행될 수록 그 효과가 큰 것으로 받아 지고 있다. (1) 한편, 컴퓨터 하드웨어와 소프트웨어의 발전으로, 설계 시에 컴퓨터의 이용이 크게 증가되고 있다. 특히, 솔리드 모델(solid model)을 기본으로 하는 설계와 이를 이용한 동시 공학의 도입은 해석과 그 결과의 설계 반영이 용이한 환경을 주고 있다. 따라서, 완성차 업체에서는 보다 신뢰성 있는 해석을 신속히 수행하기 위한 해석 기술의 개발과 CAE 적용 분야의 확대를 위해 노력하고 있다.(중략)

• Electronics and Telecommunications Trends
• /
• v.4 no.1
• /
• pp.44-54
• /
• 1989

최근 성능 및 시장규모에 있어서 급성장하고 있는 워크스테이션에 대해서 이의 발생기원과 발전과정 및 기술동향에 대해서 알아보고, 이들중에서 현재 널리 사용되고 있는 외국의 5개 회사의 상용 CAE 워크스테이션과 당 연구실에서 개발한 CAE 워크스테이션 EDAS(Electronic Design Automation System)와의 기능 및 특징을 비교분석하였다. 외국의 5개 CAE 소프트웨어 회사는 Mentor Graphics, Daisy Systems, Valid Logic Systems, VLSI Technology Inc., Phase Three Logic Inc. 이다.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 1997.04a
• /
• pp.395-399
• /
• 1997

An international standard for the product model data, STEP, and a standard for the distributed object technology. CORBA, will play a very important role in the future manufacturing environment. These two technologies provide background for the sharing of product data and the integration of applications on the network. This paper describes a prototype CAD/CAE enviroment that is integrated on the network by STEP and CORBA. Several application servers and client software were developed to verify the proposed concept.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 1993.04a
• /
• pp.71-74
• /
• 1993

The purpose of this paper is that the compressor design engineers reduce a development term with CAE approach. By using CAE, geometries for various type of piping systems can be constructed interactively and the Vibration Characteristics and Stress distribution are analyzed by FEM. Sensitivity and structural modification analysis capability are also used to reduce the total number of prototypes. An example is shown to validate the effectiveness of this system.

• Proceedings of the KAIS Fall Conference
• /
• 2008.11a
• /
• pp.371-374
• /
• 2008

본 연구에서는 무도장 Weldless 평가금형을 이용하여 사출성형 공정조건에 따라 다양한 형태의 변형이 생기는 성형품을 CAE를 통하여 ABS와 PC의 사출조건 냉각시간, 보압의 유/무 등에 따라서 발생되는 문제점과 변형량을 예측하고, 실제 사출성형 되어진 성형품과의 비교 분석을 통하여 사출성형 CAE 해석을 실제 사출성형 공정에서의 활용방안에 대하여 검토하였다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2018.06a
• /
• pp.205-206
• /
• 2018

본 논문에서는 디지털 홀로그램 영상을 Fresnelet 변환을 하여 상관도를 확인할 수 있는 데이터로 바꾸고, 컨볼루션 오토인코더(Convolutional Autoencoder, CAE)를 이용해 압축하고 생성하는 방법을 제안한다. 컨볼루션 계층과 채널 수가 다른 2개의 네트워크로 실험한다. CAE의 인코더를 수행해 영상을 압축하고 디코더를 통해 복원한다. 원본 영상의 Fresnelet 영역과 2개의 네트워크를 진행하여 생성된 Fresnelet 영역을 다시 역 Fresnelet하여 압축률에 따른 PSNR을 비교, 분석한다.