本文把文献[1]提出的极限分析中的一般变分原理应用到金属压力加工领域中,推导出一个计算初轧机轧制压力的比较简单实用的近似理论公式“文中公式(28)”。文未计算附表和图5表明,与文献[17]中我国实测结果符合良好;与国外诸公式相比,无论在定性或定量上都较为合理,而且在计算上来得简便。 In this paper, we apply the general variational principle in limit analysis proposed in [1] to the field of metal pressure processing and deduce a relatively simple and practical approximate theoretical formula for calculating the rolling pressure of the initial rolling mill. “Formula (28)” in the text. The uncalculated schedule and Fig. 5 show that the measured results in our country are in good agreement with those in [17]. Compared with other foreign formulas, both qualitatively and quantitatively are reasonable and are easy to calculate.