Buckling conducting wires and instabilities of electrodynamic space tethers
The effect of a magnetic field on the behaviour of a conducting slender elastic structure was studied. Both statical (buckling) and dynamical (whirling) instability are considered and post-buckling configurations were also computed. The theory used is the geometrically exact Cosserat rod theory. Two types of boundary conditions were considered: the traditional welded boundary conditions and a novel set of boundary conditions that give rise to exact helical post-buckling solutions. Buckling in the welded case is found to be described by a surprisingly degenerate bifurcation. Our results are relevant for current designs of electrodynamic space tethers and potentially for future applications in nano-and molecular wires.
G H. M. van der Heijden J. Valverde
Centrefor Nonlinear Dynamics, University College London, UK Department of Mechanical Engineering, University of Seville, 41092 Seville, Spain
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
679-685
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）