Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The effect of curvature in nonlinear supersonic flutter of panels with adjacent bays

Full text
Author(s):
Cabral, Myrella V. [1] ; Marques, Flavio D. [1] ; Ferreira, Antonio J. M. [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Sao Carlos, SP - Brazil
[2] Univ Porto, Fac Engn, Porto - Portugal
Total Affiliations: 2
Document type: Journal article
Source: THIN-WALLED STRUCTURES; v. 161, APR 2021.
Web of Science Citations: 1
Abstract

Structural skins of aerospace vehicles are typically made of large, internally reinforced curved panels. The presence of stiffening components subdivides the panel into several bays that interact structurally. In this context, the present study investigates the effects of adjacent bays interaction in curved panels under supersonic flutter. The analyses reveal severe jumps in the post-flutter LCO amplitudes and sub-critical bifurcation with the coexistence of different LCO branches for a specific range of dynamic pressure. These discontinuities consist of abrupt changes in the LCO amplitudes, directly related to the nonlinear coupling between adjacent bays under supersonic flutter with strong sensitivity to initial conditions. (AU)

FAPESP's process: 19/11309-9 - Supersonic aerothermoelastic nonlinear flutter analysis of reinforced laminated curved panels
Grantee:Myrella Vieira Cabral
Support Opportunities: Scholarships in Brazil - Master