Influence of Viscoelastic Elements on Magnetically Passive Stabilized Degrees of Freedom
Magnetic bearing technology is one of the most promising future technologies in the area of electrical drive systems. Due to the contact-free rotor suspension numerous advantages arise. The utilization of passive magnetic bearings is a very effective way of realizing magnetic levitation. Thereby, systems with a minimal constructive complexity can be obtained. However, such constructions have a main drawback: the damping of the passively stabilized degrees of freedom is negligibly small. External excitations or resonant vibrations may cause considerable damage to the bearing system. This study describes an effective way to damp vibrations by means of viscoelastic elements. The mathematical formulation of the overall dynamic system is derived and the analytic results are verified by measurements.
PassiveMagnetic Bearings Permanent Magnetic Bearings Damping Viscoelastic Materials
Edmund Marth Gerald Jungmayr Wolfgang Amrhein
Institute for Electrical Drives and Power Electronics Johannes Kepler University, 4040 Linz, Austria Shareholder of the ACCM GmbH
国际会议
The Twelfth International Symposium on Magnetic Bearings(第十二届国际磁悬浮轴承学术会议)
武汉
英文
694-699
2010-08-22（万方平台首次上网日期，不代表论文的发表时间）