A Shock tube is a piece of equipment in which, by creating a pressure difference between the driver and the driven section via the bursting membrane, it has the ability to generate shock waves with very short rise time. One of the important parameters in the shock tube is the planar shock wave and the distance of its formation along the driven section. In this study, the shock wave pressure was measured at different sections along the shock tube as well as at different radial distances, using three piezoresistive pressure sensors. Experiments were repeated with three different thicknesses of diaphragms 0.1, 0.2, and 0.3 mm. Diaphragms were made of Mylar. The results of the tests were extracted using TRAww software, which is a software for signal processing of the pressure sensors, and the distance of the planar shock wave for different diaphragms was obtained. The results show that by increasing the diaphragm thickness and thus increasing the explosion pressure (pressure of the driver area), the shock wave pressure increased, and the planar shock wave propagates further away in the driven section. The uniform duration of the shock wave using a diaphragm with a thickness of 0.1 mm is smaller than the other two diaphragms, and the planar shock wave is not stable until the end of the shock tube. Also, the pressure drop in the driven section after the failure of the diaphragm increases with increasing diaphragm thickness.

中文翻译：

---

圆盘隔膜厚度对平面冲击波在气体冲击管中传播过程中的形成和位置影响的实验研究

冲击管是一种设备，通过爆破膜在驱动器和从动部分之间产生压力差，它能够产生上升时间非常短的冲击波。激波管中的重要参数之一是平面激波及其沿驱动段的形成距离。在这项研究中，使用三个压阻式压力传感器在沿激波管的不同部分以及不同的径向距离处测量了激波压力。使用三种不同厚度的隔膜（0.1、0.2 和 0.3 毫米）重复实验。隔膜由聚酯薄膜制成。使用 TRAww 软件提取测试结果，该软件是用于压力传感器信号处理的软件，得到了不同振膜平面冲击波的距离。结果表明，通过增加隔膜厚度，从而增加爆炸压力（驱动区压力），激波压力增加，平面激波在驱动部分传播得更远。使用厚度为 0.1 mm 的隔膜的冲击波的均匀持续时间小于其他两个隔膜，平面冲击波直到激波管末端才稳定。此外，隔膜失效后从动部分的压降随着隔膜厚度的增加而增加。平面激波在被驱动部分传播得更远。使用厚度为 0.1 mm 的隔膜的冲击波的均匀持续时间小于其他两个隔膜，平面冲击波直到激波管末端才稳定。此外，隔膜失效后从动部分的压降随着隔膜厚度的增加而增加。平面激波在被驱动部分传播得更远。使用厚度为 0.1 mm 的隔膜的冲击波的均匀持续时间小于其他两个隔膜，平面冲击波直到激波管末端才稳定。此外，隔膜失效后从动部分的压降随着隔膜厚度的增加而增加。