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| 双通线加热的热力学及实验分析(英文) | |
| 作者姓名： | Pankaj Biswas N. R. Mandal O. P. Sha M. M. Mahapatra |
| 作者单位： | Department of Mechanical Engineering IIT;Department of Ocean Engineering & Naval Architecture IIT |
| 摘 要： | The present investigation deals with process analysis of oxy-acetylene flame assisted double pass line heating for varying plate thickness. oxy-acetylene flame as the heat source for multi pass line heating to achieve 3-D bending of plates with varying thicknesses was studied. The oxy-acetylene flame was modeled as the moving heat source in the FEM analysis. The transient thermal histories were predicted taking into account the temperature dependent thermo-mechanical properties. A comparative study between single pass and double pass line heating residual deformation was also carried out. The temperature distribution and residual deformations predicted by the numerical model developed in the present work compared fairly well with those of the experimental ones. |
| 关 键 词： | double pass thermal history residual deformations 3-D FEM transient analysis elasto-plastic analysis oxy-acetylene gas torch |
Thermo-mechanical and experimental analysis of double pass line heating |
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| Pankaj Biswas,N. R. Mandal,O. P. Sha,M. M. Mahapatra.Thermo-mechanical and experimental analysis of double pass line heating[J].Journal of Marine Science and Application,2011,10(2):190-198. | |
| Authors: | Pankaj Biswas N R Mandal O P Sha M M Mahapatra |
| Institution: | 1. Department of Mechanical Engineering, IIT, Guwahati, India 2. Department of Ocean Engineering & Naval Architecture, IIT, Kharagpur, India 3. Department of Mechanical Engineering, IIT, Roorkee, India |
| Abstract: | The present investigation deals with process analysis of oxy-acetylene flame assisted double pass line heating for varying plate thickness. oxy-acetylene flame as the heat source for multi pass line heating to achieve 3-D bending of plates with varying thicknesses was studied. The oxy-acetylene flame was modeled as the moving heat source in the FEM analysis. The transient thermal histories were predicted taking into account the temperature dependent thermo-mechanical properties. A comparative study between single pass and double pass line heating residual deformation was also carried out. The temperature distribution and residual deformations predicted by the numerical model developed in the present work compared fairly well with those of the experimental ones. |
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