탄소섬유 분사형 복합재 유지보수 로봇의 보수성능평가
Performance Evaluation for Repair of Composite Maintenance Robot Using Carbon Fiber Spray Method
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
본 논문에서는 보수를 위해 생성된 혼합물을 손상부위에 자동으로 분사하여 보수하는 탄소섬유 분사형 복합재 유지보수 로봇을 개발하였다. 로봇 개발을 위해 불연속 탄소섬유와 에폭시 수지(Epoxy resin) 및 경화제가 혼합된 보수용 혼합물을 손상부위에 분사한 뒤 경화시키는 보수공정을 개발하였다. 이후, 개발된 보수공정의 자동화를 위해 협동로봇(Collaborative robot)을 기반으로 보수용 혼합물을 손상부위에 자동으로 흡입 및 분사하는 말단장치(End of arm tool, EOAT)를 개발하였다. 개발된 로봇의 보수성능평가를 위해 복합재 인장시험 규정 ASTM D3039에 의거하여 0°및 90°일방향 시편 제작 및 시험을 수행하였다. 시험은 손상되지 않은 시편, 손상된 시편, 그리고 손상 후 로봇에 의해 자동으로 보수된 시편에 대해 수행되었다. 시험 결과, 0와 90°시편에 대해 각각 보수 후 약 7%와 90%의 인장강도 회복율이 확인되어 개발된 탄소섬유 분사형 복합재 보수 로봇의 보수성능을 검증하였다.
Abstract
In this paper, a composite maintenance robot using carbon fiber spray method was developed that automatically sprays mixture was created for repair to damaged areas to repair them. To develop a robot, a repair process was developed in which a mixture of milled carbon fiber, epoxy resin, and hardener is sprayed and consolidated on the damaged area. To automate the repair process, an EOAT based on a collaborative robot was developed that can automatically suction and spray the mixture onto the damaged area. To evaluate the repair performance of the robot, 0° and 90° unidirectional specimens were manufactured and tested in accordance with ASTM D3039. Tests were performed on undamaged specimen, damaged specimen, and repaired specimen by a robot after damaged. As a result of the specimen test, the tensile strength of the 0° and 90° specimens was recovered by 7% and 90% after repair. Based on the test results, the repair performance of the developed composite maintenance robot was verified.
참고문헌 (9)
- Min, S.G., "Aviation Composite Repair and Parts Localization Foundation Construction Research" (2015), Korea Aerospace Industries Association
- The Boeing Company, "K.R. Patent No. 10-2019-0109717", Korean Intellectual Property Office, ~ (2018)
- Lee, J. Y., "Development of Automated Lay-up Robot System for Jointing Process of GRP Pipes", Modern Physics Letters B, 34(07n9), pp.2040041~ (2020)
- Repair of Composite Laminates, "U. S. Department of Transportation Federal Aviation Administration", National Technical Information Service, ~, pp.report number: DOT (2000), FAA[DOI]
- A Study on Static and Fatigue Characteristics of Scarfpatch-repaired Composite Laminates(master), "Yoo, J. S.", Gyeongsang National University Graduate School of Specialized Aerospace Engineering, ~ (2016)
- Dickson, A. N., "Fabrication of Continuous Carbon, Glass and Kevlar Fibre Reinforced Polymer Composites Using Additive Manufacturing", Additive Manufacturing, 16, pp.146~152 (2017)
- Moon, Y. J., "Study on the Durability and Mechanical Properties of Different Type in the Fiber Reinforced Composites", Doctor, pp.2011
- "Epoxy Resin Reactive Diluent D200" (2015)[URL]
- Asokan, R., "Evaluation of Tensile Strength on Repaired Composite Adhesive Bonded Joint", Procedia Engineering, 38, pp.2337~2346 (2012)