中国舰船研究2016，Vol.11Issue(4)：93-101,9.DOI:10.3969/j.issn.1673-3185.2016.04.014
动载荷施加方式对船舶设备—基座系统建模方法的影响
The influence of dynamic loads on the FE model of the ship equipment-base system
摘要
Abstract
In ship dynamic response analysis, it is through the equipment base that the dynamic load of ship equipment passes onto the deck, which is called"equipment-base system". Generally, since it is usu?ally difficult to measure the equipment exciting force yet much easier in measuring the acceleration passed onto the base panel, the research about relevant model-building and the ship dynamic response equiva?lence of applying these two kinds of loads is of high application value for real projects. Firstly, based on the?oretical derivation, the influence of these two kinds of dynamic loads on modelling is analyzed in the parti?cle vibration system. Then, two FE models of a specific hull of an actual ship is established to confirm the validity of the conclusion by comparing the acceleration level of the check points in these two FE models, where one of which is an equipment-base model loaded with exciting force and the other is a single base model loaded with acceleration. The result shows that in the low frequency domain, when the type of dynam?ic load on the"equipment-base system"is acceleration, it is unnecessary to incorporate equipment or con?sider its mass in the FE model.关键词
动载荷/设备—基座系统/等效性/加速度Key words
dynamic load/equipment-base system/equivalence/acceleration分类
交通工程引用本文复制引用
郁扬,杨德庆,刘见华,石嘉欣..动载荷施加方式对船舶设备—基座系统建模方法的影响[J].中国舰船研究,2016,11(4):93-101,9.基金项目
国家自然科学基金资助项目(11072149) （11072149）
