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The matrix perturbation method is effective to solve this kind of problem. 矩陣攝動法是解決這種問題的有力工具。
When crack expanding problem is studied, a high efficiency semi-analytical matrix perturbation method is put forward. 對于裂紋擴(kuò)展問題，提出了一種高效的半解析矩陣攝動法。
The ordinary matrix perturbation method fails to deal with the structural system of repeated or closed frequency modes. 當(dāng)系統(tǒng)具有重頻或近頻耦合模態(tài)時，常規(guī)的矩陣攝動法失效。