PDMS를 이용한 마이크로 구동기의 제작 및 평가 (Detection of Tool Failure by Wavelet Transform)

서지정보

· 발행기관 : 한국기계가공학회
· 수록지 정보 : 한국기계가공학회지 / 7권 / 2호 / 72 ~ 77페이지
· 저자명 : 이동원, 박종성

초록

In this study, we propose and develop PDMS-based modular actuators. The microactuator which looks like a small insect uses thermal expansion power of the PDMS (polydimethylsiloxane; sylgar®184 silicone elastomer). The PDMS-based microactuator provides a large displacement due to a high thermal expansion coefficient (approximately 310ppm). The microactuator with 1mm length 350μm width is optimized by using a numerical analysis. The shape of the PDMS actuatoris variously designed. They are placed at several positions to find the optimal position that provides a high transformation ratio. The PDMS-based microactuators are fabricated using a conventional micromaching technique. The fabricated microactuator is heated using a hot-plate. The actuator displacement is measured as a function of temperature from 27℃ to 300 ℃. The experimental results are compared to the simulation result. When heating temperature up to 300℃ is applied to the PDMS actuator, each V-groove-shaped joint is actuated 30μmat 300°C. Anotherdesign of the microactuator has a maximum displacement of about 656mm.

영어초록

In this study, we propose and develop PDMS-based modular actuators. The microactuator which looks like a small insect uses thermal expansion power of the PDMS (polydimethylsiloxane; sylgar®184 silicone elastomer). The PDMS-based microactuator provides a large displacement due to a high thermal expansion coefficient (approximately 310ppm). The microactuator with 1mm length 350μm width is optimized by using a numerical analysis. The shape of the PDMS actuatoris variously designed. They are placed at several positions to find the optimal position that provides a high transformation ratio. The PDMS-based microactuators are fabricated using a conventional micromaching technique. The fabricated microactuator is heated using a hot-plate. The actuator displacement is measured as a function of temperature from 27℃ to 300 ℃. The experimental results are compared to the simulation result. When heating temperature up to 300℃ is applied to the PDMS actuator, each V-groove-shaped joint is actuated 30μmat 300°C. Anotherdesign of the microactuator has a maximum displacement of about 656mm.

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