Accession Number:

AD0272912

Title:

NONLINEAR ANALYSIS OF SINUSOIDAL OSCILLATORS

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

Report Date:

1961-12-18

Pagination or Media Count:

1.0

Abstract:

AD- 4 - IV , U I OT price D OUGLAS Aircr f C O I C., El Segundo, C LIF. O IC FATIGUE MPI G YSTEM DEVELOP E Fi l r pt PR -Jan 1, by R R O F EB , V I CL. ILLU T BL S R F R P O Con r ct NO - C Uncla ifi repor SCRIP OR IRFR , Airpl p l EEL LU I U LLOY V IBRA ION ACOUSTIC O CILLATIONS, MPING IO , Vi cosity, E LASTICITY A COU IC IN ULATION, Vibration isolators RI L , C OATINGS, Pl tic coating Rubber co i g . Poly mers, But i V I YL R IC L , ylon, Epoxy resins, Po r metal , Additives. Alu inum F OILS, L INATES, Adhesive . Test metho s. P OLYMER COMPOSITIONS WERE EVALU ED O OBTAI I FORMA ION REQUIRED FOR FFICIENT PING CO I G FOR AIRCRAFT STRUCTURES UBJECT O SONIC FATIGUE. Reduce st at in the for of r io indicating tress reduction due to dampingAND ALSO UE O SION BE WEEN STRUC UR L L M NT RE PRESENTED From the r ios, combi effici ci r r i n r u d s t e basis for classifying the m eri l i o fficiency c gori s be we n -65 and 18 F a d at frequencie of 15 d cycl ec h hig re s re uction percentages ob ain d from the combined ec i , indic fficiency of addi ive mping coatings T ST RESULTS INDICA AT A VISCO L STIC L YER BE W EN RIGID SURFACES PRODUCED A HIG LY FF C IVE DA PING SYSTE T I CONFIGUR ION WAS OBTAINED ON A MINU E CAL BY THE US OF L FI G PIGM TS IN A VI CO LA TIC B SE Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE