Accession Number : AD0810815

Title :   LUMPED PARAMETER BEAM MODELS BASED ON MECHANICAL IMPEDANCE.

Descriptive Note : Interim rept. no. 6, Mar 66-Feb 67,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF ENGINEERING SCIENCE AND MECHA NICS

Personal Author(s) : Neubert, Vernon H. ; Lee, Hae

Report Date : FEB 1967

Pagination or Media Count : 55

Abstract : A new approach has been used, based on an impedance method, to develop accurate lumped parameter models of uniform Bernoulli-Euler beams. By adjusting the parameters so that the impedance of the models is accurate at the boundaries, it is demonstrated that they will also be accurate for ground shock loading if the spectrum of the loading indicates low frequency content. Improved models for clamped-clamped, hinged-hinged, clamped-free, clamped-propped and clamped-guided beams are presented. Some previous results for bars are summarized. Also some previous results based on matching model parameters are included. (Author)

Descriptors :   *MECHANICAL IMPEDANCE), (*BEAMS(STRUCTURAL), VIBRATION, SHOCK(MECHANICS), MOBILITY, LOADS(FORCES), RODS, MATHEMATICAL MODELS, CLAMPS, RESPONSE, RESONANT FREQUENCY.

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE