An experimental system for telemetry and data processing in the study of high-speed shock wave propagation processes

Abstract

Work has been completed to create an experimental system for telemetry and processing of air shock wave propagation data in physical modeling. The constituent elements of such a system are proposed: physical and technical components, as well as a methodological framework. Implementation solutions are provided for each of these components (sensors and their placement, compressor, microcontroller, software, etc.). An experimental pneumatic tube mockup rig was developed to test and validate the telemetry and data processing system’s operability. The rig is mounted on rigidly fixed laboratory benches with stainless steel tabletops, using clamps to secure the tube components. This reduced the influence of structural vibrations on sensor readings during disturbance propagation. To minimize the effect of static voltage on the flow of sensor data (interference), the tube and laboratory tabletops are grounded. A series of experiments were conducted on compression wave propagation along a straight section of the tube and on the same section with a simulated explosion-proof bulkhead installed. The obtained data are compared with the results of numerical simulations performed using the OpenFOAM package. Suggestions for improving the experimental setup (the physical component of the system) are presented.A design scheme for a pneumatic setup for shock wave studies has been developed. Directions for further work and research are outlined.