利用能量变分法，分析组合梁在界面产生相对滑移后，其组合梁翼缘板有效宽度的变化规律。
Based on energy-variational method, the interface slippage of composite beams and the variation of the effective width are analyzed.
高于阈值温度后，影响岩石渗透率和孔隙度变化的主要机理是早期产生的微裂纹宽度增加。
When temperature is higher than the threshold, the main change of permeability and porosity was resulted from the increment of micro-fissure width.
带轮运行一定时间后，槽的宽度可以调节，这样带轮的节距是变化的，因此需要进行适当的调整以满足速度比的要求。
Pulleys are on the market that permit an adjustment in the width of the groove. The effective pitch diameter of the pulley is thus varied, and moderate changes in the speed ratio can be secured.
应用推荐