Some properties of adjoint matrix are discussed. The properties are symmetry, antisymmetry, positive definite, positive semi-definite, orthogonal and characteristic value.

摘要讨论了伴随矩阵在对称、反对称、正定、半正定、正交、相似和特徵值等方面的性质。

In the higher sea states, most characteristic values are reduced slightly due to the hydroelasticity and the quais-static results are a little bit conservative.

在高海况时，水弹性会使响应特征值略微减小，准静态法结果偏于保守。