Accession Number : ADA322955

Title :   Modeling and Analysis of Complex Flexible Systems Using Distributed Transfer Functions.

Descriptive Note : Final progress rept. 1 Mar 93-31 Dec 96,

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Yang, B.

PDF Url : ADA322955

Report Date : 27 FEB 1997

Pagination or Media Count : 16

Abstract : In this research, an innovative tool, called the Distributed Transfer Function Method (DTFM), is developed for modeling and analysis of complex flexible military structures. With the developed method, the eigensolutions, dynamic response and stability of a large class of flexible systems subject to a variety of forcing sources, multi-body coupling and constraints are precisely and efficiently predicted. Computational algorithms for modeling and analysis of different structural components such as beams, plates and shells with laminated layers, as well as their assemblies, have been developed. The DTFM is also shown to be useful for exploring innovative techniques in vibration controller design and smart structure design. The research results have important applications in optical design and vibration control of helicopter rotors with blades, robotized armament systems, rotating machinery, vehicle frame-suspension systems, and tank cannons and machine guns.

Descriptors :   *MATHEMATICAL MODELS, *STRUCTURAL MECHANICS, *FLEXIBLE STRUCTURES, ALGORITHMS, VIBRATION, TRANSFER FUNCTIONS, STRESS ANALYSIS, COMPUTER AIDED DESIGN, STRUCTURAL ANALYSIS, BEAMS(STRUCTURAL), DYNAMIC RESPONSE, EIGENVALUES, SHELLS(STRUCTURAL FORMS), STRUCTURAL RESPONSE, SYSTEMS ANALYSIS, GREENS FUNCTIONS, ANALYTIC FUNCTIONS.

Subject Categories : Mechanics
      Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE