246 T.J. Beberniss et al. 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 -0.5 0 0.5 Time (seconds) Displacement (mm) 0 500 1000 1500 10-9 10-8 10-7 10-6 10-5 10-4 10-3 Displacement PSD (mm2/Hz) Frequency (Hz) Unheated Flow Heated Flow Pressure (Pa) x 104 4 5 6 7 8 9 10 a b c Fig. 22.11 Year 2 RC-19 experimentation showing impact of heated flow for constant 8ı shock generator setting/SBLI: (a) panel center displacement time history, (b) displacement PSD for heated and unheated flow, and (c) accompanying surface pressure (PSP) for the case without heated flow This behavior was also observed in the numerical results shown in Fig. 22.13. The FE model of the panel displays both the principal and asymmetric path, along with the full panel displacement at discrete locations. Future work will include measuring this phenomena experimentally and using that data to calibrate the modal model to predict and define future RC-19 experimental conditions.
RkJQdWJsaXNoZXIy MTMzNzEzMQ==