고유변형도법을 이용한 삼각가열에 의한 판 변형의 시뮬레이션
Simulation of Plate Deformation due to Triangle Heating Using Inherent Strain Method
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참고문헌
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초록
In the shipyard, line heating and triangle heating are two major processes for forming curved plates in various shapes. While there have been many studies on line heating, triangle heating has been rarely studied due to its complicated heating process with irregular multi-heating paths and highly concentrated heat input. As the triangle heating process is one of the most labor-consuming jobs in shipyards, it is essential to study the automation as well as improvement of triangle heating process in order to increase hull forming productivity. In this study, a pioneering attempt to simulate triangle heating was made. A circular disk-spring model was proposed for elasto-plastic analysis procedure of triangle heating and the inherent strain method was also used to analyze the deformation of plates. Simulation results were compared with those of experiments and showed good agreement. It is shown that the present approach including analysis model used in this study is effective to simulate the triangle heating for plate forming process in shipbuilding.
Abstract
In the shipyard, line heating and triangle heating are two major processes for forming curved plates in various shapes. While there have been many studies on line heating, triangle heating has been rarely studied due to its complicated heating process with irregular multi-heating paths and highly concentrated heat input. As the triangle heating process is one of the most labor-consuming jobs in shipyards, it is essential to study the automation as well as improvement of triangle heating process in order to increase hull forming productivity. In this study, a pioneering attempt to simulate triangle heating was made. A circular disk-spring model was proposed for elasto-plastic analysis procedure of triangle heating and the inherent strain method was also used to analyze the deformation of plates. Simulation results were compared with those of experiments and showed good agreement. It is shown that the present approach including analysis model used in this study is effective to simulate the triangle heating for plate forming process in shipbuilding.
참고문헌 (6)
- Jang, C.D, "An Experimental Study of Characteristics of Plate Deformation by Heating Process", Journal of the Society of Naval Architects of Kor, 38(2), pp.62~70 (2001)
- Jang, C.D, "Simulation of Plate Deformation by Triangle Heating Process", Journal of the Society of Naval Architects of Korea, 38(4), pp.66~74 (2001)
- Ko, D.E, "A Study on the Prediction of Deformations of Plates due to Line Heating using a Thermal Elasto-Plastic Analysis Model", 박사, pp.1998
- Ko, D.E, "Realtime Simulation of Deformation due to Line Heating for Automatic Hull Forming System", Journal of the Society of Naval Architects of Korea, 36(4), pp.116~127 (1999)
- Nomoto, T, "Development of Simulator for Plate by Line Heating Considering In-Plane Shrinkage", Journal of the Society of Naval Architects of Japan, 170 (1991)
- Ueda, Y, "Development of Computer Aided Process Planning System for Plate Bending by Line Heating(1st Report), Relation Between Final Form of the Plate and Inherent Strain", Journal of the Society of Naval Architects of Japan, 170 (1991)