厚壁圆筒爆室膛压测试与分析

Measurement and analysis of chamber pressure in a thick-walled cylindrical explosion containment vessel

为了防止TNT爆炸产生的瞬间高温高压及伴随的强震动给膛压测试造成的极大困难,选用了筒壁上安装压力传感器和膛内放入DT-FDCYG型存储式电子测压器两种方法测试膛压。实验后,筒壁上安装的传感器全部损坏,而存储式电子测压器测到了完整波形,但膛压峰值出现离散。实验数据可为大型设备的爆室设计提供参考。

To overcome the difficulties in measuring the chamber pressure,which resulting from the instantaneous high temperature,high pressure and strong shake produced by TNT explosion,two methods were applied to measure the chamber pressure by installing pressure sensors on the wall of the cylindrical explosion containment vessel and setting a DT-FDCYG storage-type electronic pressure-measuring apparatus in the vessel,respectively.After the experiments,all the pressure sensors installed on the wall of the vessel were damaged,while the intact waveform was obtained by the electronic pressure-measuring apparatus,the chamber-pressure peaks of which were discrete.The experimental data are helpful for the design of large explosion equipments.