C'est la Vie – comme ci comme ça

November 7, 2012

Protected: (Wave-07)柱坐标系下的波动方程

Filed under: Daliy life — hitzws @ 12:25 PM

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November 6, 2012

(Piezo-20)压电应变矩阵与应力矩阵

Filed under: Daliy life — hitzws @ 12:05 AM

压电应变矩阵d与压电应力矩阵e之间的关系为:

e = cd^T

式中c为弹性矩阵。

如对于PZT-5H,e_{6\times 3} = c_{6\times 6}d_{3\times 6}^T

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