Title: Research on ship-hull plate's curve forming by means of line heating with variable velocity

Authors: Liang Qi; Tianbo Li; Weiping Mao; Ping Yang

Addresses: Laboratory of Materials and Micro-Structural Integrity, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212003, China; School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003, China ' Laboratory of Materials and Micro-Structural Integrity, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212003, China ' Laboratory of Materials and Micro-Structural Integrity, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212003, China ' Laboratory of Materials and Micro-Structural Integrity, School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212003, China

Abstract: Line heating (LH) technology is the main process mode in ship-hull plate's curve forming. Generally, operators implement LH process with constant velocity which is easy and convenient to realise. However, phenomenon of 'non-uniform deformation' is easily generated along heating path. The paper studies the root of the phenomenon and puts forth a new kind of LH technology with variable velocity. Internal relationship between temperature field and deformation field under the new technology is studied by numerical simulations. Simulation results show that the new technology can alleviate negative effects of the phenomenon effectively.

Keywords: line heating; non-uniform deformation; variable velocity; ship hulls; hull plates; curve forming; temperature; numerical simulation.

DOI: 10.1504/IJMSI.2016.079640

International Journal of Materials and Structural Integrity, 2016 Vol.10 No.1/2/3, pp.99 - 107

Received: 21 May 2016
Accepted: 23 May 2016
Published online: 06 Oct 2016 *

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