ybt

Repetitive control based linear servo unit under YBT CIMS Environment

集成制造系统中基于重复控制的直线伺服单元

The center of the YBT model is the most possible critical buckling instability point ;

YBT模型上最容易发生皱曲的临界危险点是模型的中心；

The distribution of transversely induced compressive stresses in the uni-and biaxial diagonal tensile test of square specimen ( YBT ) is analysed by means of finite element method .

利用有限元法分析方板在单向和双向对角拉伸条件下诱导压应力的变化规律。

Yoshida Buckling Test ( YBT ) which has been developed by Japanese famous scholar Yoshida is a notable test for appraising the sheet stamping formability .

方板对角拉伸试验即YBT模型是日本冲压行业著名学者吉田清太提出的评价板材冲压成形性能的著名试验。

The results found that : ( 1 ) the transverse corner field resulting from the uneven geometrical width of YBT model leads to the non-uniform spreads and distributions of the active lengthwise tensile stress , the stretchy strain and the passive transverse pressure stress in the principal axis ;

由此得出：①YBT模型几何宽度不均匀所形成的横向角部区域，导致了主动型的纵向主轴拉应力和主轴伸长应变以及被动型的横向主轴压应力的不均匀传播与分布；