14 xiv 



page 



PART U. DAMAGE TO A DIAPHRAGM U3 



A FEW SWING TIMES 43 



DEFLECTION FORMULAS FOR A DIAPHRAGM i)l+ 



THE FACTORS DETERMINING DAMAGE 55 



PART 5. ANALYSIS OF A FEW DATA ON DIAPHRAGMS 58 



MODUGNO GAGES 58 



21 -INCH DIAPHRAGMS 60 



REFERENCES 62 



MATHEMATICAL APPENDIX 65 



WAVES INCIDENT UPON THE INFINITE PLANE FACE OF A TARGET 65 



THE MOTION OF A PLATE, DIAPHRAGM OR LIQUID SURFACE 67 



THE CASE OF PLANE WAVES 67 



EFFECT OF AN INFINITE BAFFLE 69 



PLATE OR DIAPHRAGM PROPORTIONALLY CONSTRAINED AND MOUNTED 



IN AN INFINITE PLANE BAFFLE 70 



THE NON-COMPRESSIVE CASE WITH PROPORTIONAL CONSTRAINT , 73 



THE REDUCTION PRINCIPLE, IN THE CASE OF PROPORTIONAL CONSTRAINT . . 75 



INITIAL MOTION OF A PROPORTIONALLY CONSTRAINED PLATE 78 



EFFECT OF FLUID ON BOTH SIDES OF THE PLATE 78 



CAVITATION AT A PLATE OR DIAPHRAGM 79 



CAVITATION WITH DOUBLE PROPORTIONAL CONSTRAINT 82 



SOME SWING TIMES 86 



SECOND-ORDER EFFECTS IN REFLECTION 88 



INDEX 93 



