Regularized Nonlinear Moving-Horizon Observer With Robustness to Delayed and Lost Data
Journal article, Peer reviewed
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OriginalversjonIEEE Transactions on Control Systems Technology. 2013, 21 (6), 2114-2128. 10.1109/TCST.2012.2228652
This study evaluates the performance of a new shock tube facility used to produce blast loading in controlled laboratory environments. The facility was found to generate a planar shock wave over the tube cross section by measuring the pressure distribution on a massive steel plate located at the end of the tube. The properties of the shock wave proved to be a function of driver length and driver pressure, and the positive phase of the measured pressure–time histories was similar to those generated from actual far-field explosive detonations. However, the shock tube is also suited to investigate fluid–structure interaction effects and the behaviour of materials in blast events. This was demonstrated using a three-dimensional digital image correlation technique to measure the deformation field of thin steel plates. Synchronization of the three-dimensional digital image correlation and pressure measurements enabled a thorough investigation of the entire experiment and identification of fluid–structure interaction effects. Finally, one-dimensional numerical simulations were performed to investigate the wave patterns during the experiments.