Firstly, a 3D numerical model of weld temperature field of low-carbon and low- alloy steel is established and solved by the element difference method, including the factors of thermally physical parameters changing with temperature.
首先,建立三维焊接温度场的数学模型,利用差分方法进行求解。 该模型考虑了热物性参数随温度而变化的等因素。
参考来源 - CDependences of focused intensity distribution and focal shift upon relative physical parameters are analyzed. Condition for optimum focusing is obtained.
分析了聚焦光强分布和焦移受相关物理参数的影响,得出了获得最佳聚焦效果的条件。
参考来源 - 光束的聚焦特性研究:焦移,焦开关和相移·2,447,543篇论文数据,部分数据来源于NoteExpress
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