In this paper,the deformation principle of strip pulled through shoulder is studied by FEM simulation.
板条通过圆角是冲压工艺中带有普遍性的问题 ,也是冲压工艺基础理论研究中的一个难点。
The deformation and mechanical state of sheet at shoulder largely affect the sheet forming performance That is a basic theory problem of sheet forming In this paper,the influence of shoulder radius,back tension and friction condition on strip pulled through shoulder are studied by FEM simulation The deformation and mechanical features of strip at different states are discusse
本文就圆角半径、后拉力、摩擦条件等因素对板条通过圆角时的变形及圆角阻力等方面的影响进行了研究 ,获得了不同条件下板料在圆角处的变形特点及力能参数的变化规律。
In this paper,the problem of a mode Ⅲ crack in a functionally graded strip is studied with the assumption that the reciprocals of the shear modulus is a linear function in the thickness direction,while the Possion s ratio is kept constant.
作者假设功能梯度材料剪切模量的倒数为坐标的线性函数,而泊松比为常量,研究功能梯度板条的反平面裂纹问题。
Experimental study of partially end-pumped Nd∶YVO_4 slab laser with hybrid resonator operation;
部分端面抽运混合腔Nd∶YVO_4板条激光器实验研究
A kilowatt laser diode stack pumped solid state heat capacity laser is studied theoretically and fabricated respectively with single slab and double Nd∶YAG slabs.
报道了千瓦级激光二极管面阵抽运固体热容激光器的理论与实验研究,分别采用Nd∶YAG单板条和双板条串接的热容激光器,利用热容激光器的理论计算模型计算了在一定的工作时间内激光输出特性,并进行了实验验证。