The federation categorises its members into 25 groups ( including the newly formed software and information technology group ) covering major industries and services 該會按主要工商行業(yè)把會員分為25組(?括最新成立的軟件及資訊科技分組)。
From the postulate of the stretch-forming, with the help of sheet-forming software, the computer simulation of the stretch-forming of a s-shape aircraft skin is proposed in this paper, including the build of fem mode, the preferences of simulation, the forming, the whole body spring back and the spring back after clipping . the spring back radius is calculated on the simulate results and contrasted with the reality 從拉形的基本原理出發(fā),本文運用sheet-forming對s形飛機蒙皮進行拉形成形的計算機仿真,包括有限元模型的建立、仿真參數(shù)的選擇、加載成形、整體卸載回彈、切邊卸載回彈;運用仿真結(jié)果計算回彈半徑求出回彈量,并將分析計算結(jié)果與實際生產(chǎn)的回彈量對比。