A Practical Method and Its Software for Design Natural Frequencies Modification of Hull Grillage Beam

Liu Qimin, Zhao Deyou

Journal of Dalian Fisheries University ›› 1998, Vol. 13 ›› Issue (4) : 42-47.

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Journal of Dalian Fisheries University ›› 1998, Vol. 13 ›› Issue (4) : 42-47.

A Practical Method and Its Software for Design Natural Frequencies Modification of Hull Grillage Beam

Liu Qimin； Zhao Deyou

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Abstract

Authors suggest a practical method based on dynamic analysis of finite element for modifying natural frequencies of hull grillage beam, and its software is completed. The method can be applied when the size of hull grillage beam and exciting frequencies cannot be easily changed.

Key words

hull grillage beam / natural frequency / modification

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Liu Qimin, Zhao Deyou. A Practical Method and Its Software for Design Natural Frequencies Modification of Hull Grillage Beam[J]. Journal of Dalian Fisheries University, 1998, 13(4): 42-47