Response of a Vibrating Plate in a Fluid 



mammmamm 



X = X' = 0.25 FT 

 Y = Y' = 0,25 FT 

 PRtSS. DIFF. Ap = 14 psi 

 400 Hz HI PASS FILTER 



wmmuBmmmk 

 wmmam 



mmsmm 



4-0 



1=1' 



nu ll i M l 11 1 1 M ^+n-•l^^ 



4=2" 



^ 1 



- 



4=3" 



• " '1. ! i . 

 iT i 1 11 1 II i t^ i j I II 1 1 ii j i 



4=4' 



4=5" 



UPSTREAM 

 CORRELATION 



POSITION OF SHOCK 

 IMPINGEMENT 



DOWNSTREAM 

 CORRELATION 





4=6' 



,576 1.15 173 2.30 2. 

 T, m sec 



Fig. 5. Broad Band Space Time Correlation of the Panel Displace- 

 ment Along the Center from x = x' =0.25 ft, y = y' = 0,25 ft, 



485 



