减弱冲击波场对搭载设备冲击作用的实验研究

火箭发动机喷流时产生的起始冲击波超压会使受冲击体发生破坏性的形变,这对火箭弹与载弹设备的相容性形成了不利的影响。弹体在新设备上进行搭载时必须考虑对起始冲击波超压的抑制以保护搭载设备不受破坏。采用电测技术和光学流场显示技术可以研究冲击波的作用情况。笔者就是在对冲击波超压实验研究的基础上,探索抑制起始冲击波超压以减小它对设备表面的危害的途径。通过在喷管尾设置抑制装置削弱了起始冲击波超压的峰值压力,改变了冲击波的形态,提高了火箭弹与其载体的相容性。笔者还对抑制的效果进行了分析

Experimental study of the restrain method of shock wave effect on loading equipment

Harmful deformation on loading equipment is caused when it is lashed by initial shock wave of jet flow field. It has harmful effect on the compatibility of rocket and loading equipment. This fact should be paid attention when rocket is loaded on new equipment. The initial shock wave can be studied by using of electrical measurement technology and optical display method of flow field. On the base of the experimental study of initial shock wave, the restrain technology is studied to reduce the harmful effect of the wave. The restrain device is put at the rear of the jet. By using of this technology, the peak overpressure of shock wave is reduced by a relatively large scale. The compatibility of rocket and its loading equipment could be improved. The restrain result is also discussed in this paper.