多因素下弹体跨介质入水试验系统构建

doi:10.12382/bgxb.2024.0950

摘要/Abstract

摘要：

为综合开展不同运动特性与运行环境属性相互耦合下的弹体跨介质入水试验,开展多功能试验系统的构建,主要包含发射分系统、参数测量分系统、介质属性分系统。发射分系统主要用于开展多因素相互耦合下的弹体跨介质入水试验,并通过数值仿真对发射分系统进行校核,结果表明发射分系统安全可靠,可用来正常开展试验。参数测量分系统主要通过高速摄影相机定性观测弹体跨介质入水过程空泡的时空演化与通过加速度传感器定量测量加速度的实时变化。介质属性分系统主要用于构建具有不同黏度与密度的运行环境。试验所获得的空泡与加速度的整体变化表明所构建的试验系统可完全用于开展弹体跨介质入水试验。

关键词: 弹体, 跨介质入水, 发射分系统, 参数测量分系统, 介质属性分系统

Abstract:

To comprehensively carry out the trans-media water entry test of projectile under the mutual coupling of different motion peculiarities and various operating environment properties,a multifunctional trans-media water-entry test system is built.The test system includes a launch subsystem,a parameter measurement subsystem,and a medium property subsystem.The launch subsystem is mainly used for the trans-media water entry test of projectile under the mutual coupling of multiple factors,and is checked via numerical simulation.The results indicate that the launch subsystem is safe and reliablem,and could be used to perform tests normally.The parameter measurement subsystem is used to qualitatively observe the temporal and spatial evolution of cavitation bubbles during the trans-media water entry process of projectile via a high-speed camera and quantitatively measure the real-time change of acceleration by a acceleration sensor.The medium property subsystem is used to build an operating environment with different viscosities and densities.Overall variations of bubbles and accelerations obtained from tests indicate that the test system could be fully employed to perform trans-media water entry test for the projectile.

Key words: projectile, trans-media water entry, launch subsystem, parameter measurement subsystem, medium property subsystem

韩向东, 王西泉, 李超, 陈俊彪, 李军智, 封慧勇, 魏雪梅. 多因素下弹体跨介质入水试验系统构建[J]. 兵工学报, 2024, 45(S2): 199-207.

HAN Xiangdong, WANG Xiquan, LI Chao, CHEN Junbiao, LI Junzhi, FENG Huiyong, WEI Xuemei. On the Construction of a Trans-media Water-entry Test System for Projectile[J]. Acta Armamentarii, 2024, 45(S2): 199-207.

图/表 31

图1 发射分系统

Fig.1 Launch subsystem

图2 跨介质入水冲击组件

Fig.2 Trans-mediawater-entry impact components

表1 空气压缩机参数

Table 1 Parameters ofair compressor

参数	数值	参数	数值
产品型号	BW320P	额定电压/V	380
容积流量/(L·min^-1)	320	电机转速/(r·min^-1)	1300
电机功率/kW	7.5	排气压力/MPa	30

图3 发射管角度调节示意图

Fig.3 Schematic diagram of angle adjustment for launch tube

图4 12.48°时的移动支架位移变化云图

Fig.4 Contour of the displacement variation of mobile stand at12.48°

图5 12.48°时的移动支架应力变化云图

Fig.5 Contour of the stress variation of mobile stand at 12.48°

图6 45°时的移动支架位移变化云图

Fig.6 Contour of the displacement variation of mobile stand at 45°

图7 45°时的移动支架应力变化云图

Fig.7 Contour of the stress variation of mobile stand at 45°

图8 水箱表面压力分布云图

Fig.8 Contour of pressure distribution on the surface of water tank

图9 水箱位移云图

Fig.9 Contour of the displacement ofwater tank

图10 水箱应力云图

Fig.10 Contour of the stress ofwater tank

图11 水箱应力集中点

Fig.11 Stress concentration point of water tank

图12 视窗位移云图

Fig.12 Contour of the window displacement

图13 视窗应力云图

Fig.13 Contour of window stress

图14 温控装置实物图

Fig.14 Physical picture of temperature control device

图15 参数测量分系统

Fig.15 Parameter measurement subsystem

图16 观测仪器布置

Fig.16 Arrangement of observation instruments

图17 高速摄影相机

Fig.17 High-speed camera

图18 加速度传感器

Fig.18 Acceleration sensor

图19 加速度传感器敏感度变化

Fig.19 Variation ofacceleration sensor sensitivity

图20 DH5916-10动态信号采集仪

Fig.20 DH5916-10 dynamic signal acquisition instrument

图21 DHDAS动态信号分析系统界面图

Fig.21 Interface figure of DHDAS dynamic signal analysis system

图22 黏度测试仪

Fig.22 Viscosity testing apparatus

图23 密度测试计

Fig.23 Density testing meter

图24 数字温度表

Fig.24 Digital thermometer

图25 溴化锂溶液黏度变化

Fig.25 Variation oflithium bromide solution viscosity

图26 溴化锂溶液密度变化

Fig.26 Variation oflithium bromide solution density

图27 试验弹体

Fig.27 Testprojectile

图28 弹体跨介质入水过程空泡变化

Fig.28 Variation of cavitation bubbles in thetrans-media water entry process of projectile

图29 弹体跨介质入水过程加速度变化

Fig.29 Variation of acceleration inthe trans-media water entry process of projectile

图30 加速度变化的局部放大图

Fig.30 Partial enlarged image of acceleration variation

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