한국기계기술학회지 제4권 제1호

1.

2002.06 구독 인증기관 무료, 개인회원 유료

The study on time difference measurement of microphones for sound source

In this study, we do research in a proper microphone arrangement method by way of evaluating and analyzing the relation between an open angle of the microphones and a time difference of an input sound signal for an exact definition of a sound source. Then, We can expect that existing robots or machines with an only vision system will have more excellent environmental adaptation ability by supports of hearing sense.

4,000원

2.

2002.06 구독 인증기관 무료, 개인회원 유료

소화용 물안개 분사 노즐 개발에 관한 연구

Development of Water Mist Spray Nozzle For Fire Protection

김봉환, 김용판, 문철진, 이을우, 이전우, 최현호

한국기계기술학회지 제4권 제1호 pp.9-15 한국기계기술학회

An experimental study of the fire protection performance of water mist spray subjected to thermal radiation was presented. Downward-directed water mist sprays to interact with an under. gasoline pool fire were experimentally investigated in underground environment. The mass mean diameters of water mist droplet were measured by PMAS under various flow conditions. The developed water mist spray nozzle was satisfied to the criteria of NFPA 750. The mechanism of the fire extinguishment by water mist spray was concluded to be cooling of the fire surface which lead to suppressed of' file1 evaporation. It was proved that the water mist spray system under. lower pressures could be applied to underground fire protection system.

4,000원

3.

2002.06 구독 인증기관 무료, 개인회원 유료

비드높이 제어 및 용접선 추적에 레이저 비전센서 적용 사례

An Application on Control of Bead Height and Joint Tracking Using Laser Vision Sensor

이정익

한국기계기술학회지 제4권 제1호 pp.17-25 한국기계기술학회

There have been continuous efforts on automating welding processes. This automation process could he said to fall into two categories, weld seam tracking and weld quality evaluation. Recently, the attempts to achieve these two functions simultaneously arc on the increase. For the study presented in this paper, a vision sensor is made, a vision system is constructed and using this, the 3 dimensional geometry of the head is measured on-line. For the application as in welding, which is the characteristic of nonlinear process, a fuzzy controller is designed. And with this, an adaptive control system is proposed which acquires the bead height and the coordinates of the point on the bead along the horizontal fillet joint, performs seam tracking with those data, and also at the same time, controls the bead geometry to a uniform shape. A communication system, which enables the communication with the industrial robot, is designed to control the bead geometry and to track the weld seam. Experiments are made with varied offset angles from the pre-taught weld path, and they showed the adaptive system works favorable results.

4,000원

4.

2002.06 구독 인증기관 무료, 개인회원 유료

성형 해석을 이용한 다용도 이동형 측정기 개발

The Development of Multi-Portable Measuring Machine by Mold Flow Analysis

이정익

한국기계기술학회지 제4권 제1호 pp.27-33 한국기계기술학회

4,000원

5.

2002.06 구독 인증기관 무료, 개인회원 유료

평행류형 응축기의 성능에 관한 연구

A Study on Performance of Parallel Flow Condenser