Page - 727 - in Book of Full Papers - Symposium Hydro Engineering

4.2. SIMULATION EFFECT VERIFICATION Taking the measuring points T9 (Fig. 3) with the largest vibration amplitude as an example, the 13 typical prototype observation conditions were calculated to correspond to the test model. The amplitude comparison between each measuring point of the model structure and T9 is shown in Fig. 6. 0 1500 3000 4500 6000 7500 0.01 0.1 1 Rate of flow (m 3 /s) T1-Stilling pool foundation (gal) T2-Foundations outside the stilling pool (gal) T3-Dam heel foundation (gal) T9 (gal) T9 (um) Fig. 6 Vibration comparison between each measuring point of the model structure and the prototype measurement point T9 Results show that the variation trends and patterns of vertical vibrations of each measuring point in the hydroelastic model were basically the same as those at T9. Firstly, the overall vibration intensity increased with an increase of the stilling pool flow; secondly, vibration intensity was sensitive to the route of discharge, with unfavorable routes of discharge resulting in an increase of vibration intensity. 0.0 0.2 0.4 0.6 0.8 0.0 0.5 1.0 1.5 2.0 2.5 R=0.84 RMS of vertical acceleration of measuring point 5 (gal) Measured data Linear Fit Fig. 7 Vibration correlation between the stilling pool base measurement point of the model and the prototype measurement point T9 727