海冰-结构的动力相互作用、冰激振动及冰载荷的识别问题，仍是目前工程海冰界的核心和热点问题。
Dynamic interactions of sea ice with offshore structures, ice-induced vibrations and ice loads identification, are still the hot and key problems in ice engineering.
基于矩阵摄动和动力子结构方法，系统地建立了改善冰与结构动力相互作用的结构布置优化方法。
A systematic approach of structural optimization for improving dynamic ice-structure interaction is presented in this paper on the basis of matrix perturbation and dynamic substructure techniques.
当结构物迎冰面的宽度小于冰的宽度时，冰与结构物之间的相互作用为三维问题。
When the width of the upice surface of the structure is less than the width of the ice, the action between the structure and the ice becomes three dimensional problem.
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