선체 블록의 판접 위치 획득을 위한 센서 모듈 시제품 개발
A Prototype of Sensor Module to Control the Position of Hull Block for Tack Welding
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초록
Alignment of the main plates during the tack welding is essential to block assembly since most of the curved blocks and outfitting parts are assembled on the jigs and fixtures. Tact welding of main plates is the initial process of the curved hull block assembly. Due to the heavy weight of the main plates it is difficult to locate the plate on the accurate position of the jig and fixtures before welding. The conventional masonry process requires much time and manual work in order to achieve the accurate alignment. This labour-intensive process results in relatively high errors and correction works. Due to their larger dimensions and heavier weights, these hull blocks are not ergonomically desirable and, therefore, various mechanical devices such as hydraulic balancers or hydraulic jigs are used for the plate alignment. In this study, the position-sensing scheme implemented by sensors is presented in order to align the main plates on the accurate position during the hull block assembly. Integrating the Infrared photo sensors and micro processor unit, a small scaled prototype of the position-sensing module is developed to determine the alignment of main plates.
Abstract
Alignment of the main plates during the tack welding is essential to block assembly since most of the curved blocks and outfitting parts are assembled on the jigs and fixtures. Tact welding of main plates is the initial process of the curved hull block assembly. Due to the heavy weight of the main plates it is difficult to locate the plate on the accurate position of the jig and fixtures before welding. The conventional masonry process requires much time and manual work in order to achieve the accurate alignment. This labour-intensive process results in relatively high errors and correction works. Due to their larger dimensions and heavier weights, these hull blocks are not ergonomically desirable and, therefore, various mechanical devices such as hydraulic balancers or hydraulic jigs are used for the plate alignment. In this study, the position-sensing scheme implemented by sensors is presented in order to align the main plates on the accurate position during the hull block assembly. Integrating the Infrared photo sensors and micro processor unit, a small scaled prototype of the position-sensing module is developed to determine the alignment of main plates.
참고문헌 (12)
- "8 bit AVR Microcontroller ATmega128(L) manual" (2004)[URL]
- "AVR Studio 4.14" (2005)[URL]
- Autonix, "BRSeries Manual: BR Cylindrical Housing DC Photo Electric Sensors from ASC Ph 03 9720 0211", ~ (2008)
- Akyildiz, I.F., "A survey on wireless multimedia sensor networks", Computer Networks, 51(4), pp.921~960 (2007)
- Jayaweera, N., "Adaptive robotic assembly of compliant aero-structure components", Robotics and Computer-Integrated Manufacturing, 23, pp.180~194 (2007)
- "Fast Arithmetic on ATmega128 for Elliptic Curve Cryptography" (2008)[URL]
- Kwon, Y., "Sensor-based Remote Quality Control Application in Automotive Components Assembly, Concurrent Engineering : Research and Applications, 18(2), pp. 141-155", Concurrent Engineering: Research and Applications, 18(2), pp.141~155 (2010)
- Kim, S.Y., "A Study on Virtual Erection Block Positioning using Genetic Algorithm", Proceedings of KIIS Spring Conference(in Korean), pp.1532~1536 (2009)
- Kim, J.H., "Implementation of Automatic Teaching System for Subassembly Process in Shipbuilding", Journal of KWS, 14(2), pp.96~105 (1996)
- 이주성, "선체 박판구조의 용접변형 제어에 관한 연구(I)", 대한조선학회 논문집, 44(5), pp.496~503 (2007), 대한조선학회
- 유원선, "선체 조립도 생성 자동화를 위한 겹침 회피 알고리즘", 대한조선학회 논문집, 46(6), pp.622~630 (2009), 대한조선학회
- "IR Sensor PD410PI datasheet" (2010)[URL]