• 제목/요약/키워드: 밸로우즈

검색결과 4건 처리시간 0.032초

마이크로 광 조형 기술을 이용한 마이크로 밸로우즈 액추에이터의 개발 (Development of Micro-bellows Actuator Using Micro-stereolithography Technology)

  • 강현욱;이인환;조동우
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.615-618
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    • 2005
  • All over the world, many kinds of micro-actuators were already developed for various applications. The actuators are using various principles such as electromagnetic, piezoelectric and thermopneumatic etc. The most of the micro-actuators have been made using 2D based MEMS technology. In these actuators, it is difficult to drive 3-dimensional motion. This characteristic gives the limit of actuator application. However, micro-stereolithography technology has made it possible to fabricate freeform three-dimensional microstructures. In this technology, 2-dimensional micro-shape layer is cumulated on the other layers. This layer-by-layer process is the main principle to fabricate 3-dimensioal micro-structures. In this research, a micro-bellows actuator that is vertically moving was developed using the micro-stereolithography technology. When pressure was applied into the bellows, a non-contact actuating motion is generated. For actuation experiment, syringe pump and laser interferometer were used for applying pressure and measuring the displacement. Several hundreds micro-scale actuation was observed. And, to demonstrate the feasibility of proposed actuation principle, in this research, a micro-gripper was developed using half-bellows structure.

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파이버 레이저를 이용한 밸로우즈 용접특성에 관한연구 (Welding characteristics of Metal bellows using a Fiber laser)

  • 김정오;이제훈;이승우
    • 한국레이저가공학회지
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    • 제16권3호
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    • pp.22-26
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    • 2013
  • Fiber laser welding was performed on SUS Materials metal bellows. The results can be summarized as follows: When we tried to change welding focus location. we get the best welding line when focus location placed 0mm. In product welding, We could make a satisfactory product in constant area by applying optimized conditions and show a table that is able to help producer easily to apply it to manufacturing. In comparison with existing TIG and plasma welding, welded bellows by fiber laser has faster processing speed, smaller thermal effect, very narrow welding area and fine surface.

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배관에 의한 구조진동 진단 및 대책 (A Diagnosis and Solution Case of Structural Vibration caused by Pipe)

  • 이정환;구동식;최병근
    • 동력기계공학회지
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    • 제12권2호
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    • pp.18-22
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    • 2008
  • A few intake stations have vibration problems caused by pipes. The vibration transffered from pipes excites building severely. Therefore, the crack is generated on building wall and people who work at intake station are damaged. In this paper, the vibration is measured and analysis is carried out for pipes at intake station in order to identify the usefulness and effectiveness of the solution proposed for pipe resonance avoidance. According to the result of analysis, the vibration of pipes is reduced by bellows.

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배관에 의한 구조진동 진단 및 해결 사례 (A diagnosis and solution case of structural vibration caused by pipe)

  • 이정환;구동식;최병근
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.1371-1374
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    • 2007
  • A few intake stations have vibration problems caused by pipes. The vibration transffered from pipes excites building severely. Therefore, the crack is generated on building wall and people who work at intake station are damaged. In this paper, the vibration is measured and analysis is carried out for pipes at intake station in order to identify the usefulness and effectiveness of the solution proposed for pipe resonance avoidance. According to the result of analysis, bellows is reduced the vibration of pipes.

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