The article presents the results of a study of perforated plates effectiveness to ensure safety in case of emergencies on spacecraft and launch pads. The degree of shock wave attenuation by perforated plates with different permeability coefficients has been studied experimentally and numerically. Experiments were carried out with conical shock tube, which was used to produce spherical shock waves of varying intensity, and perforated plate with a permeability coefficient of 41% and. Shock wave reflection and attenuation coefficients were obtained. To study the qualitative picture of a shock wave interaction with perforated plate, a numerical model using Ansys Fluent was created and verified. The numerical model made it possible to qualitatively evaluate the breakup and coupling of a shock wave front after passing perforated plate. The degree of a shock wave attenuation by plates with permeability coefficients of 29% and 20.6% was numerically studied. It was shown that perforated plates can effectively reduce a shock wave overpressure.

本文介绍了穿孔板有效性的研究结果，以确保在航天器和发射台发生紧急情况时的安全。对不同渗透系数的穿孔板对冲击波的衰减程度进行了实验和数值研究。实验用锥形激波管（用于产生不同强度的球形激波）和渗透系数为 41% 的多孔板进行。获得冲击波反射和衰减系数。为了研究冲击波与穿孔板相互作用的定性图像，使用 Ansys Fluent 创建并验证了一个数值模型。数值模型可以定性评估冲击波前通过穿孔板后的分裂和耦合。数值研究了渗透系数为29%和20.6%的板对冲击波的衰减程度。结果表明，穿孔板可以有效地降低冲击波超压。