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振型参与系数：每个质点质量与其在某一振型中相应坐标乘积之和与该振型的主质量（或者说该模态质量）之比，即为该振型的振型参与系数。 振型参与质量：某一振型的主质量（或者说该模态质量）乘以该振型的振型参与系数

后处理节点应力中x,y,z方向应力和第一、二、三主应力就不介绍了，stress intensity（应力强度），是由第三强度理论得到的当量应力，其值为第一主应力减去第三主应力。Von Mises是一种