THEORETICAL AND EXPERIMENTAL VIBRATION AND BUCKLING RESULTS FOR BLUNT TRUNCATED CONICAL SHELLS WITH RING-SUPPORTED EDGES

Abstract TECH LIBRARY KAFB, NM I 111111 11111 11111 11111 lllil1111111111 illIll1 I 3. Recipient's Catalog No. I 5. RewJrt Date December 1970 I 6. Performinq -Orqanization Code 8. Performing Organization Report No. 1. L-7061 10. Work Unit No. 124- 08- 20-04 11. Contract or Grant No. 13. Type of Report and Period Covered Technical Note 14. Sponsoring Agency Code The vibration and buckling characteristics of ring-supported conical shells have been investigated theoretically and experimentally. Theoretical results indicate that rings designed to provide edge restraint between simple and clamped support on the basis of buckling calculations do not provide the equivalent support on the basis of vibration calcu­lations for modes having few circumferential waves. The natural frequencies for these modes were considerably below the minimum frequencies for shells with simply supported or clamped edges. For such cases, studies indicate that substantial increases in ring size and mass are required to effect

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