Wrinkling of transversely loaded spinning membranes

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:139

Article

Delapierre, Melanie¹  Chakraborty, Debadi²  Sader, John E.^2,3  Pellegrino, Sergio¹ 

[1] CALTECH, Grad Aerosp Labs, 1200 E Calif Blvd, Pasadena, CA 91125 USA

[2] Univ Melbourne, Parkville, Vic 3010, Australia

[3] CALTECH, Dept Phys, Pasadena, CA 91125 USA

关键词: Buckling;    Wrinkled membranes;    von Karman plate theory;    Nonlinear dynamical systems;   

DOI  :  10.1016/j.ijsolstr.2018.01.031

来源: Elsevier

【 摘 要 】

Spinning membrane structures provide a mass-efficient solution for large space apertures. This paper presents a detailed study of the wrinkling of spinning circular membranes loaded by transverse, uniform loads. Experimental measurements of the angular velocities at which different membranes become wrinkled, and of the wrinkling mode transitions that occur upon spin down of the membrane, are presented. A theoretical formulation of the problem is presented, from which pairs of critical angular velocities and critical transverse loads are determined. A general stability chart is presented, which identifies the stability limits in terms of only two dimensionless parameters, for any membrane. The transition between bending dominated behavior and in-plane dominated behavior is identified, and it is shown that in the bending-dominated case the critical non-dimensional transverse load is independent from the non-dimensional angular velocity. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

Free