摘要
利用刚体与弹性体结合的分析方法对某船舶浮筏系统的振动及抗冲击特性进行了分析。在多刚体的基础上,建立了浮筏系统振动及冲击响应计算的数学模型。利用在基础受到多向加速度冲击作用下的浮筏系统响应的数值仿真计算,分析了系统的动力学特性以及对于不同波形多向加速度冲击的响应特性。并且采用有限元技术,分析了筏体的振动模态对浮筏系统的影响。
The vibration and shock resistance properties of the floating raft system are analyzed by employing the analytical method of integrating both rigid bodies and flexibility bodies. Firstly, based on the rigid bodies of various kinds, math model of vibration and shock response to floating raft system is established. Then by using numerical simulation calculation of the response of the floating raft system when the foundation is being shocked by multiway accelerations and different waveforms, the dynamical properties and response properties are investigated. Lastly. And the finite element method is carried out, the influence of raft shape modals on floating raft system is discussed.
出处
《华东船舶工业学院学报》
2002年第5期14-18,共5页
Journal of East China Shipbuilding Institute(Natural Science Edition)
基金
企业协作攻关项目
