Collision modeling approach and transient response mechanism of ring-ribbed cylindric shells for underwater vehicles

作     者：Wang, Chengyan Li, Zhe Xu, Pu Hou, Yueqiao Tan, Dapeng Li, Lin 

作者机构：Zhejiang Univ Technol Coll Mech Engn Hangzhou Peoples R China Zhejiang Prov & Minist Educ Collaborat Innovat Ctr High End Laser Mfg Equipmen Hangzhou Peoples R China 

出 版 物：《APPLIED MATHEMATICAL MODELLING》 (Appl. Math. Model.)

年 卷 期：2025年第141卷

核心收录：

学科分类：07[理学] 070104[理学-应用数学] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Natural Science Foundation of China (NSFC) [52175124, 52305139] Zhejiang Provincial Natural Science Foundation [LQ23E050017, LZ21E050003] Fundamental Research Funds for the Provincial Universities of Zhejiang [RF-A2024001] 

主　　题：Submerged collision RRC shell Liquid-filled interlayer Fluid-structure interaction Large transient deformation 

摘      要：Collision is the most common accident during underwater vehicle (UV) operation, and its transient response rule is very important to ensure personnel safety and reduce property loss. However, high pressure, large size, and environmental interference make it a great challenge to trace the large deformation of UV hulls. To solve the aforementioned problems, this paper models submerged ring-ribbed cylindric (RRC) shells to imitate the UV structure. Then, a fluid-structure interaction (FSI) impact modeling and process-solving approach based on the penalty function method for thin shells with filled liquid in the interlayer is proclaimed. A constitutive relation considering the Voce equation is defined to explain the mechanical properties of plastic hardening. Finally, an arbitrary Lagrange-Euler (ALE) method with a partial introduction of absolute nodal coordinate formulation (ANCF) is conducted to study the dynamic evolution and large deformation of unconstrained RRC shells. The response features of RRC shells under different impact conditions (ram shape, collision location, and depth of water) are analyzed. The results illustrate that the modeling and solving approach raised in the research for the large deformation of thin shells caused by an underwater collision can reveal the transient response process and the evolutionary mechanism of the dented damage. The relevant achievements can provide a reference for UV structure optimization, and furnish modeling ideas for tracking the transient large deformation of thin underwater shells.