提出一种基于有限元结构动力分析的船体板架固有频率实用修改方法，并进行了软件设计。
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.
船舶、钻井平台、导管架的年检、特检以及船体、机电设备、管线的系统检验和寿命评估等。
Annual inspection and special inspection and jacket for ship and platform, system inspection for ship structure, equipment and piping and evaluate for their natural life.
并通过建立各种计算模型，对七万吨自卸船进行了船体总振动、舱室局部结构振动、机舱底部板架振动和上层建筑振动的计算分析。
By the different calculation models, the hull general vibration, the cabin local vibration, the grillage vibration in the engine room as well as the superstructure...
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