Natural frequencies of bonded and unbonded propellants in three- and five-inch rocket motors
By: by Robert E. Ball
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1974
Place of publication: Monterey, Calif
Language: eng
Number of pages: 26
Subjects: Fuel; Elastic plates and shells; Computer programs; Propellants; Rockets (Aeronautics)
Description: ABSTRACT.The results of an analysis by Armenakas for the natural frequencies of composite (two material) cylinders is used to determine the lowest natural frequency of bonded and unbonded propellants in three-inch and five-inch rocket motors. The lowest frequency is found to be approximately eight times larger than the lowest frequency in the launch force pulse. Thus, the dynamic effects in the propellant will be significant. (Author)
Notes: Title from cover.

"Prepared for: Commander, Naval Weapons Center, China Lake, California 93555"--Cover.

"16 May 1974"--Cover.

"NPS-57Bp74051"--Cover.

"Interim report for period April 1973 - June 1973."

Author(s) subject terms:Gun-launched rockets, shells, cylinders, natural frequencies, propellants.

Includes bibliographical references (p. 14)

"Approved for public release; distribution unlimited"--Cover.

Technical report; 1974.