噪声与振动控制2019，Vol.39Issue(1)：94-98,145,6.DOI:10.3969/j.issn.1006-1355.2019.01.018
基于动态子结构法的加筋圆柱壳冲击环境预报
Impact Environment Prediction of Stiffened Cylindrical Shells based on Dynamic Substructure Method
杨文山 1杨勇 2赵勋 2郭君 2李晓文2
作者信息
- 1. 武汉第二船舶设计研究所, 武汉 430064
- 2. 哈尔滨工程大学, 哈尔滨 150001
- 折叠
摘要
Abstract
At present, impact environment prediction of ships has been paid increasingly attention of many countries. The main research methods include finite element simulations and underwater explosion experiments. Due to the large economic and labor consuming and environment interference, the real ship experiments do not have repeatability. While the development of modern computer technology makes it possible to simulate large and complex ship structures by finite element simulation. In the process of warship local refinement design, the whole structure still needs to be simulated and calculated in order to modify local parameters. However, this simulation still needs large amount of computation resources and time. In this paper, a substructure-based approach is provided to solve the modal information of a warship's whole structure and predict the impact environment subject to underwater explosion loads. With a simple reinforced cylindrical shell as an object, its impact response is calculated with this method. The results show that the accuracy of numerical simulation is ensured and the computation cost is reduced.关键词
振动与波/有限单元法/子结构/模态综合/冲击环境预报Key words
vibration and wave/finite element method/substructure/modal synthesis/impact environment prediction分类
数理科学引用本文复制引用
杨文山,杨勇,赵勋,郭君,李晓文..基于动态子结构法的加筋圆柱壳冲击环境预报[J].噪声与振动控制,2019,39(1):94-98,145,6.
