인치웜 메커니즘을 이용한 고하중/대변위 엑츄에이터의 개발

다국어 초록 (Multilingual Abstract)

This paper presents the design of inchworm motor for high precision actuator system of large-displacement and high-force. The inchworm motor can realize the long stroke with high load capacity and resolution by clamping and extending sequences of the PZT. It can attain high resolution and high force from the accurate displacement of extension and contraction motion. The proposed inchworm actuator consists of two clamping parts on the top and the bottom side of the inchworm body, and one extension part in the middle of the actuator. The two clamping PZT are provide the holding force and the extending PZT is provide the displacement of tool guide. In generally, PZT has the low tensile strength and shear. Therefore, design of the inchworm motor has been focused on optimizing the pre-load housing mechanism to reduce the shear force. The preload also creates additional return forces to aid in the release of the clamping mechanisms. The detailed design of the pre-load mechanism was performed using finite element analysis. A prototypeof the inchworm motor was fabricated and tested with respect to the variations of the serial and parallel connection of the PZTs.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. PZT를 이용한 인치웜 액츄에이터
• 3. 인치웜 액츄에이터 설계
• 4. 실험
• 결론
• 후기
• 참고문헌