为保证气垫船在特殊情况的应用，对气垫船空投入水进行研究。应用Abaqus有限元分析软件对气垫船气囊建立空气弹簧模型，对气囊不同气压时气垫船入水过程的运动特性和姿态变化进行仿真分析。结果表明：气囊的运动因空气弹簧存在的原因较底板更为剧烈；气囊气压在0.2～0.3 MPa间的运动特性几乎一致，小于0.2 MPa时气囊的弹性势能较小，速度衰减较慢，入水后吃水更深；气囊气压在0.15～0.3 MPa内，气垫船入水的姿态由前倾变为后倾，气压为0.2 MPa时，气垫船入水全程的姿态变化不大。总的来说，气垫船气囊压力为0.2 MPa时入水运动特性较好，姿态始末变化不大。
In order to ensure the application of hovercraft in special cases, the study on air water injection of hovercraft is carried out. By using abaqus finite element analysis software to build an air spring model for the air bag of hovercraft, the motion characteristics and attitude changes of the air bag during the water entry process are simulated and analyzed. The results show that: The movement of the air bag is more intense than that of the bottom plate because of the existence of the air spring. The motion characteristics of the airbag pressure are almost the same between 0.2?0.3MPa. When the air pressure of the air bag is less than 0.2MPa, the elastic potential energy of the air bag is smaller, the velocity attenuation is slower, and the draft after entering the water is deeper. When the air pressure of the air bag is within 0.15?0.3MPa, the attitude of the hovercraft entering the water changes from forward to backward. When the air pressure is 0.2MPa, the attitude of the hovercraft entering the water has little change. In general, when the air bag pressure of hovercraft is 0.2MPa, the motion characteristics of entering water is better, and the attitude changes little.
2024,46(5): 34-38 收稿日期：2023-03-07
DOI：10.3404/j.issn.1672-7649.2024.05.006
分类号：U674.943
基金项目：江苏省工业与信息化厅2021年度“关键核心技术（装备）研制公关”资助项目
作者简介：陈海斌(1968-),男,正高级工程师,研究方向为船舶与海洋工程装备结构物设计与制造
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