基于有限元的船舶重型水密门异常抖动分析
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摘要
当前船舶工业的发展对船舶舱体等结构的要求日益提高,其中重型水密门是保证船舶装卸和舱体防水性的重要结构。针对水密门经常出现的异常抖动现象,本文从船舶结构的不均匀应力出发,使用有限元分析方法对船舶的几何结构和工艺结构进行分析并建立模型。根据水密门开关的具体结构,通过对不同部件的受损指数分析,将异常现象原因定位于转动轴承。
At present, the development of ship industry has raised requirements on the structures of ship cabins, in which heavy watertight doors are important ones to ensure stevedoring and waterproof performance. Targeting at the phenomena of abnormal vibration on watertight doors, this paper starts from the uneven tensions of ship structure, analyzes with finite element theory and build models on geometric and process structure. Aimed on the specific structure of watertight door, this paper calculates the damage index of different parts and comes to conclude that rolling bearing are the main cause for vibration.
At present, the development of ship industry has raised requirements on the structures of ship cabins, in which heavy watertight doors are important ones to ensure stevedoring and waterproof performance. Targeting at the phenomena of abnormal vibration on watertight doors, this paper starts from the uneven tensions of ship structure, analyzes with finite element theory and build models on geometric and process structure. Aimed on the specific structure of watertight door, this paper calculates the damage index of different parts and comes to conclude that rolling bearing are the main cause for vibration.
引文
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[5]张延昌,王自力,罗广恩.船舶上层建筑整体吊装强度有限元分析[J].船舶工程,2006(3):62–65.
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