Accession Number : ADA190611

Title :   Wave Propagation and Dynamics of Lattice Structures.

Descriptive Note : Final rept. 1 Sep 85-30 Sep 87,

Corporate Author : WEA CAMBRIDGE MA

Personal Author(s) : Williams, James H , Jr

PDF Url : ADA190611

Report Date : 01 Oct 1987

Pagination or Media Count : 8

Abstract : One of the most attractive structural configurations for large space structures (LSS) for outer space applications is the repetitive lattice concept. Achieving the operational requirements of such structures will necessitate considerable knowledge of the dynamics, control, materials and nondestructive evaluation (NDE) of these structural systems. Wave propagation analyses provide potentially valuable perspectives from which to consider this broad range of analysis, design and synthesis issues. The theoretical and experimental results of a two-year research program on the wave propagation and dynamics of LSS are briefly reviewed. Potential benefits to wave propagation analyses in the vibration, parameter identification, dynamic failure, control and NDE of lattice structures have been identified and are summarized in this report. Keywords: Wave propagation, Dynamic failure, Lattice structures, Large space structures.

Descriptors :   *DYNAMICS, *SPACECRAFT, *STRUCTURAL PROPERTIES, *VIBRATION, *WAVE PROPAGATION, BENEFITS, FAILURE, IDENTIFICATION, NONDESTRUCTIVE TESTING, OUTER SPACE, REQUIREMENTS, SPACE TECHNOLOGY, STRUCTURES, SYNTHESIS

Subject Categories : Unmanned Spacecraft
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE