Numerical Analysis for Dynamic Instability of Electrodynamic Maglev Systems

Article type: Research Article

Authors: Cai, Y.^{; ;} | Chen, S.S.

Affiliations: Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439

Note: [] The submitted manuscript has been authored by a contractor of the US Government under contract No. W-31-109-ENG-38.

Note: [] This article is a US Government work and, as such, is in the public domain in the United States of America.

Abstract: Suspension instabilities in an electrodynamic maglev system with three- and five-degrees-of-freedom DOF vehicles traveling on a double L-shaped set of guideway conductors were investigated with various experimentally measured magnetic force data incorporated into theoretical models. Divergence and flutter were obtained from both analytical and numerical solutions for coupled vibration of the three-DOF maglev vehicle model. Instabilities of five direction motion (heave, slip, roll, pitch, and yaw) were observed for the five-DOF vehicle model. The results demonstrate that system parameters such as system damping, vehicle geometry, and coupling effects among five different motions play very important roles in the occurrence of dynamic instabilities of maglev vehicles.

DOI: 10.3233/SAV-1995-2407

Journal: Shock and Vibration, vol. 2, no. 4, pp. 339-349, 1995