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shiranjiang金虫 (正式写手)
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| 数值模拟技术是一种通过计算机程序来求解数学模型的数值解法，对于一些复杂的难以用解析法和实验法求解的工程问题，如焊接时的温度场、应力场等，均可通过计算机模拟技术对其进行模拟计算，从而得到所求问题的近似解。焊接热过程涉及到传热、金属的熔化和凝固，焊接应力及变形等，因此是一个十分复杂的过程。此外，焊接热过程对焊接终端裂纹的控制和焊接质量及生产效率的提高具有极其重要的影响，而焊接数值模拟通过利用有限元分析软件对焊接热过程进行模拟计算，得到焊接过程的近似解，对优化工艺参数和结构设计及实际的焊接生产具有十分重要的意义。 |
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shiranjiang: 金币+10, ★有帮助, 非常感谢！ 2015-04-06 11:21:30
shiranjiang: 金币+10, ★有帮助, 非常感谢！ 2015-04-06 11:21:30
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Numerical simulation technology is a numerical method that solves mathematical model via computer programs. For some complex engineering problems that is difficult to be solved by analytic method or experimental method, such as welding temperature field, stress field and so on, approximate solutions can be achieved by computer simulation technology. Welding is a complicate process because it involves quantity of processes as heat transfer, metal melting and solidification, welding stress and deformation, etc. Moreover, welding process has an extremely important influence on controlling of terminal welding crack, welding quality and production efficiency, therefore, to attain an approximate solution of the welding process by using finite element analysis software is of great significance to optimize process parameters, the structure design and the actual welding production. |
2楼2015-04-06 10:21:01
武汉一心一译 
捐助贵宾 (著名写手)
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shiranjiang: 金币+60, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2015-04-06 11:18:45
shiranjiang: 金币+60, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2015-04-06 11:18:45
| The numerical simulation technique is a kind of numerical solution to mathematical model based on computer programs. For some engineering problems such as temperature field and stress field in welding that normally cannot be addressed by analytical or experimental method, numerical simulation technique can conduct analog computation on these problems so as to obtain the approximate solution. As a highly complex process, the welding process involves processes of heat transmission, metal melting and solidification, welding residual stress and distortion. In addition, since the welding thermal process is of great significance to the welding terminal cracks control, and the improvement of welding quality and production efficiency, the welding numerical simulation technique, adopting finite element analysis software, can conduct analog computation on welding thermal process and obtain the approximate solution to welding process, which plays a vital role in the optimization of technical parameters and structural design and in improvement of practical productivity. |
3楼2015-04-06 10:21:26