数字海洋与水下攻防2025，Vol.8Issue(4)：424-436,13.DOI:10.19838/j.issn.2096-5753.2025.04.006
无人航行器水密舱段振动特性理论分析模型研究
Research on Theoretical Models of Vibration Characteristics of Unmanned Underwater Vehicle Watertight Compartments
周欢思 1聂睿 2王蓉 2孙海涛 2李森2
作者信息
- 1. 海军装备部,湖北 宜昌 443003
- 2. 宜昌测试技术研究所,湖北 宜昌 443003
- 折叠
摘要
Abstract
The watertight compartment is the main structural component of unmanned underwater vehicle platform.Establishing an accurate structural vibration prediction model of the watertight compartment and clarifying the influence of changes in external environmental factors are of great significance for rapid technological iteration in the overall design and detailed design stages.To address this issue,the watertight compartment is reasonably simplified as a finite-length cylindrical shell structure with internal ring stiffeners.Based on the principle of energy variation,theoretical derivations are carried out for the energy of the shell structure,the energy of the ring stiffeners,the fluid coupling energy(including the influence of the free surface),and the pre-stress energy due to hydrostatic pressure.After clarifying the specific expressions of the above energy terms,the vibration energy functional of the shell-liquid coupling is obtained.By varying the energy functional,a calculation and analysis model for the vibration characteristics of the shell is ultimately established.The accuracy of the calculation model in this paper is fully verified by comparing it with published literature and finite element software results.Subsequently,using this model,an in-depth analysis and discussion of the changes in the vibration characteristics of the cylindrical shell caused by factors such as dive depth are conducted,elucidating the mathematical and physical mechanisms behind the phenomena.关键词
环肋圆柱壳/潜深/自由液面/静水压力/流固耦合Key words
ring-stiffened cylindrical shell/dive depth/free surface/hydrostatic pressure/fluid-structure coupling分类
交通工程引用本文复制引用
周欢思,聂睿,王蓉,孙海涛,李森..无人航行器水密舱段振动特性理论分析模型研究[J].数字海洋与水下攻防,2025,8(4):424-436,13.
