高速彈體水平入水產(chǎn)生沖擊波特性
發(fā)布時間:2018-11-06 09:30
【摘要】:高速彈體入水產(chǎn)生的沖擊波對彈體的水下運行與毀傷性能有著至關(guān)重要的作用.為得到高速彈體入水產(chǎn)生的沖擊波及其傳播特性,利用一級輕氣炮高速發(fā)射平頭和球形兩種不同彈體水平入水,通過以不同方式分布于水下的壓力傳感器測量因此而形成沖擊波峰值壓力衰減特性.實驗結(jié)果表明:初始沖擊波峰值壓力隨著距離和角度以不同的方式衰減;在波的傳播方向上,其滿足指數(shù)衰減的形式,壓力介于距離的倒數(shù)與距離平方的倒數(shù)之間的曲線之間.在球形波陣面上則以正弦曲線的形式衰減,這種沿距離和角度衰減的沖擊波峰值不受彈體的初始速度的影響.
[Abstract]:The shock wave produced by high velocity projectile entering water plays an important role in the underwater operation and damage performance of the projectile. In order to obtain the shock wave and its propagation characteristics caused by the water entry of the high speed projectile, two different projectiles, the flat head and the spherical projectile, were fired at high speed by the first class light gas gun into the water horizontally. The peak pressure attenuation characteristic of shock wave is formed by measuring pressure sensors distributed underwater in different ways. The experimental results show that the peak pressure of initial shock wave attenuates in different ways with distance and angle, and in the direction of wave propagation, it satisfies the form of exponential attenuation, and the pressure is between the reciprocal of distance and the reciprocal of square of distance. On the surface of spherical wave array, the peak value of shock wave attenuation along the distance and angle is not affected by the initial velocity of the projectile.
【作者單位】: 哈爾濱工業(yè)大學(xué)航天學(xué)院;
【基金】:國家自然科學(xué)基金(11372088)
【分類號】:O35
[Abstract]:The shock wave produced by high velocity projectile entering water plays an important role in the underwater operation and damage performance of the projectile. In order to obtain the shock wave and its propagation characteristics caused by the water entry of the high speed projectile, two different projectiles, the flat head and the spherical projectile, were fired at high speed by the first class light gas gun into the water horizontally. The peak pressure attenuation characteristic of shock wave is formed by measuring pressure sensors distributed underwater in different ways. The experimental results show that the peak pressure of initial shock wave attenuates in different ways with distance and angle, and in the direction of wave propagation, it satisfies the form of exponential attenuation, and the pressure is between the reciprocal of distance and the reciprocal of square of distance. On the surface of spherical wave array, the peak value of shock wave attenuation along the distance and angle is not affected by the initial velocity of the projectile.
【作者單位】: 哈爾濱工業(yè)大學(xué)航天學(xué)院;
【基金】:國家自然科學(xué)基金(11372088)
【分類號】:O35
【相似文獻】
相關(guān)期刊論文 前10條
1 吳振森,由金光,楊瑞科;激光在沙塵暴中的衰減特性研究[J];中國激光;2004年09期
2 類成新;吳振森;張化福;劉漢法;;激光在隨機分布煙塵團簇粒子中的衰減特性[J];光子學(xué)報;2010年06期
3 錢彥;沈中華;倪曉武;陸建;;激光等離子體沖擊波波陣面衰減特性的實驗研究[J];紅外與激光工程;2008年S3期
4 鐘曉春;李源慧;;激光在海水中的衰減特性[J];電子科技大學(xué)學(xué)報;2010年04期
5 陳遠容,李勇生;自動描繪余輝衰減特性的實驗裝置[J];大學(xué)物理;1991年09期
6 孫洪星,康永華;有耗介質(zhì)探地雷達波傳播衰減特性的研究[J];工程地質(zhì)學(xué)報;1999年04期
7 洪昕,王聲波,郭大浩,吳鴻興,王R,
本文編號:2313892
本文鏈接:http://sikaile.net/kejilunwen/lxlw/2313892.html
最近更新
教材專著