The plastic process analyses on uniform and non-uniform cylindrical upsetting were made in detail on the basis of the principle of generalized variational inequality with friction. 基于摩擦約束廣義變分不式原理，對圓柱體均勻鐓粗和圓柱體非均勻鐓粗金屬成形工藝問(wèn)題進(jìn)行詳細的塑性加工工步分析。
The general variational principle is employed in communicating information between subdomains with Lagrange multipliers, which yields a reduced-order coarse problem. 根據廣義變分原理，采用拉格朗日乘子在子區域之間交換信息，并建立其相應的粗問(wèn)題。
