A new treatment of boundary condition on the numerical calculation of radiation heat transmission& the mixed average method ( H J method) is presented. The practical calculation shows that it can improve calculating accuracy at longer time period to a certain degree. 提出了辐射传热数值计算的一种新的边界条件处理方法&混合平均方法(H-J法),实际计算表明,在较大时间步长下H-J法一定程度上可以提高计算精度。
Fetching average value of influence factor and calculating, traditional safety factor ( median-value safety factor) will be obtained, at same time, reliability of safety factor will be obtained by calculating variability of safety factor. 取影响因素的平均值,计算得到传统的安全系数(中值安全系数),同时由安全系数的变异性,求出安全系数的可靠性。