Accession Number:

ADA175854

Title:

Analytical and Experimental Investigation of the Damping Characteristics of Bolted and Welded Structural Connections for Plates and Shells

Descriptive Note:

Progress rept. 1 Oct 1985-30 Sepn 1986

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Report Date:

1986-10-12

Pagination or Media Count:

51.0

Abstract:

The design of the structural connections is important from the standpoint of reducing system vibration amplitudes or enhancing joint damping capacity. A state-of-the-art review was performed and a generic experimental model was developed and constructed. The test model consists of two concentric circular cylindrical shells and four vanes connected by groups of bolts. First, a finite element model was developed and analyzed, using the MSCNASTRAN computer program. The first analysis was a modal survey of the model to investigate dynamic characteristics of the whole system. Secondly a frequency response analysis gave the inputoutput relationship between an input point excitation and an output point response in the frequency domain, which depends on the damping characteristics of the structure.

Subject Categories:

  • Couplers, Fasteners and Joints
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE