鱼雷技术2012，Vol.20Issue(3)：161-165,170,6.
鱼雷缓冲头帽入水冲击性能研究
Water-Entry Impact Performance of Torpedo's Cushion Nose Cap
徐新栋 1李建辰 2曹小娟1
作者信息
- 1. 中国船舶重工集团公司第705研究所,陕西西安,710075
- 2. 水下信息与控制重点实验室,陕西西安,710075
- 折叠
摘要
Abstract
To solve the problems that theoretical analysis of water-entry impact process of torpedo's cushion nose cap is difficult and strength design boundary of the nose cap is not easy to be determined, we build a finite element model of the nose cap water-entry with the software ABAQUS, and analyze the stress distribution of the nose cap assembly during water-entry impact process. The conclusion is drawn that vertical water-entry with minimum velocity is the most safe condition for the nose cap. Taking this condition as the upper limit of the nose cap strength design, key factors that may induce nose cap crack are analyzed. Accordingly, two methods to make the nose cap easy to crack after water-entry are offered, i.e. weakening the strength of the fairing and reducing the friction between the nose cap assembly and torpedo. Simulation results show that combination of two methods can achieve perfect nose cap water-entry.关键词
鱼雷/缓冲头帽/入水冲击/有限元模型Key words
torpedo/ cushion nose cap/ water-entry impact/ finite element model分类
军事科技引用本文复制引用
徐新栋,李建辰,曹小娟..鱼雷缓冲头帽入水冲击性能研究[J].鱼雷技术,2012,20(3):161-165,170,6.
