Analysis of load reduction performance of polyurethane buffer devices for projectiles entering water at high speed based on ALE method

被引：0

作者：

Xiao Y.-C. ^{[1
]}

Xing X.-Y. ^{[1
]}

Yang P.-C. ^{[1
]}

Zhang H. ^{[2
]}

Xiong Y.-Y. ^{[2
]}

Xu Z.-S. ^{[1
]}

Zhao Z.-Y. ^{[3
]}

Sun Y. ^{[4
]}

机构：

[1] School of Mechanical and Electrical Engineering, North University of China, Taiyuan

[2] No. 713 Research Institute, CSSC, Zhengzhou

[3] Beijing Institute of Glass Steel Composites Co., Ltd., Beijing

[4] School of Astronautics, Harbin Institute of Technology, Harbin

来源：

Chuan Bo Li Xue/Journal of Ship Mechanics | 2024年 / 28卷 / 07期

关键词：

buffer performance; density effect; high-speed water entry; RPUF; strain rate effect;

D O I：

10.3969/j.issn.1007-7294.2024.07.014

中图分类号：

学科分类号：

摘要：

A rigid polyurethane foam (RPUF) buffer was designed to reduce the load of a projectile during high-speed water entry. Based on the Hopkinson compression bar technique, the density and strain rate effects of RPUF under impact loading were obtained, and its macroscopic constitutive model was established. Based on the Arbitrary Lagrangian-Eulerian (ALE), the numerical simulation model of the projectile during high-speed water entry was established. The numerical simulation of the projectile during high-speed water entry with different densities of RPUF was carried out. The dynamic failure process and motion parameters of the buffer during the water entry were obtained, and the influence law of the density and thickness of RPUF on the load reduction characteristics was analyzed. It can be found that the strain rate effect of RPUF is not obvious, but the density effect is obvious, and that, as the density and thickness of RPUF increase, the load reduction performance of RPUF increases. © 2024 China Ship Scientific Research Center. All rights reserved.

引用

页码：1111 / 1123

页数：12

共 25 条

[1] Sun Longquan, Wang Duliang, Li Zhipeng, Et al., Analysis on load reduction performance of foamed aluminum buffer device for high speed water entry vehicle based on a CEL method, Journal of Vibration and Shock, 40, 20, pp. 80-89, (2021)
[2] Truscott T T, Epps B P, Belden J., Water entry of projectiles, Annual Review of Fluid Mechanics, 46, 1, pp. 355-378, (2014)
[3] Li Y, Zong Z, Sun T., Crushing behavior and load-reducing performance of a composite structural buffer during water entry at high vertical velocity, Composite Structures, 255, (2021)
[4] Hinckley W M, Yang J C S., Analysis of rigid polyurethane foam as a shock mitigator[J], Experimental Mechanics, 15, 5, pp. 177-183, (1975)
[5] Xuan Jianming, Song Zhiping, Yan Zhonghan, Et al., Experimental study on disintegration of water buffer protective head cap of torpedo, Journal of Underwater Unmanned Systems, 2, pp. 45-50, (1999)
[6] Lei Jiangtao, Wang Wanfan, Yan Zhaonan, Reliability on separation of head cap launching, Material and Heat Treatment, 40, 24, pp. 143-145, (2011)
[7] Xu Xindong, Li Jiancheng, Cao Xiaojuan, Water-entry impact performance of torpedo’s cushion nose cap, Torpedo Technology, 20, 3, pp. 161-167, (2012)
[8] Qian Lixin, Liu Fei, Qu Ming, Et al., Failure mode of torpedo nose cap in water-entry, Torpedo Technology, 23, 4, pp. 257-262, (2015)
[9] Wang Yonghu, Shi Xiuhua, Wang Peng, Exploring analysis of dynamic cushioning properties of water-entry missile’s shock mitigator, Journal of Northwestern Polytechnical University, 27, 5, pp. 707-711, (2009)
[10] Shi Yao, Liu Zhenpeng, Pan Guang, Gao Xingpu, Structural design of a slotted wrapping buffer head cap of vehicles and its load reduction performance, Explosion and Shock Waves, 42, 12, pp. 95-107, (2022)

← 1 2 3 →