多曲率旋转壳体液压胀形实验研究

Experimental study into the hydro-bulge forming of multi-curvature revolving-shell

研究了多曲率旋转壳体胀形过程中各部分的应变分布及位移变化规律。实验结果表明,在曲率方向不同时,壳体上曲率为负(内凹)的部分有向曲率为正(外凸)变化的趋势;在曲率方向相同时,曲率大的部分有向曲率减小的部分变化的趋势。

The strain distribution and displacement variation of multi-curvature revolving-shell in the hydro-bulge forming process was investigated by experimental method. The experimental results show that the part with negative curvature tends to change its curvature into positive. When the curvatures are in the same direction , the part with bigger curvature tends to reduce its curvature value.