摘要
通过分析焊接过程仿真技术的发展现状 ,指出提高仿真方法的效率和精度是解决焊接过程仿真技术的若干关键问题。同时结合计算机技术和仿真技术的发展前沿进行了几项探索性研究。这些研究包括网格自适应技术的开发和应用 ,采用不同求解器对并行计算中并行加速比影响的研究 ,以及材料高温性能对计算时间和计算精度的影响等。在几种方法中 ,网格自适应技术和并行计算技术有较好的发展前景和广泛的应用范围。除对本研究组已开展的工作进行了一定的分析外 ,并对某些未来的研究发展方向进行了初步的探讨 ,这些可能进行的研究包括单元技术的开发、可行的结构简化方案、动态区域分解算法的实现。
The latest development of welding process simulation is analyzed in the paper. It is pointed out that increasing the efficiency and precision of simulation is the key point in modeling of welding process. At the same time, some basic researches are explored based on the frontier of computer and simulation techniques in the paper. These researches include the exploration and application of adaptive mesh, analysis of parallel speed up ratio of computing with different solvers, effects of material's properties at high temperature on calculating time and calculating precision. The adaptive mesh technique and parallel computing technique have great potential and wide application among the above researches. Some new viewpoints are also discussed besides the development of researches already explored. The above mentioned aspects include exploring new elementary technique, possible scheme for simplifying the structure, achievement of dynamic area decomposing method, establishment of distributed parallel processing system and application of similarity method in numerical simulation of welding process.
出处
《中国机械工程》
CAS
CSCD
北大核心
2000年第1期201-205,共5页
China Mechanical Engineering
基金
国家计委产业化前期关键技术与成套设备研制开发项目
关键词
焊接过程仿真
自适应网格
并行计算
welding process numerical simulation adaptive mesh parallel computing
