Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2019
Date : August 27, 2019 - August 30, 2019
The application of the magnetic levitation (maglev) technology is expanding along with the performance advancement and cost reduction of sensors, DSPs, and power transistors. Maglev technology can support objects without any contacts; therefore, it has various excellent features such as reduction of friction and wear, expansion of durability, reduction of maintenance frequency, reduction of vibration and noise, and so on. There are several types of research on the maglev carrier and train system by using a combination of permanent magnets and electromagnets to reduce the control current. In most studies, however, only gravity direction motion is actively controlled, it may be difficult to stably transport the target when operating on a complicated shape guide rail. Authors are developing a novel maglev carrier system that can actively control the lateral direction in addition to the gravity direction. We designed the maglev core by FEM magnetic field analysis and manufactured the experimental setup. And we carried out the maglev control. To clarify the dynamic characteristics of the device, we measured the start-up response and time response for mass change of the cart. The settling time and steady-state current of each maglev unit varied due to the discrepancies between the center of geometry and the center of the gravity; however, it had excellent magnetic support performance. Also, we clarified that the frictional resistance value in the gravity direction under maglev control was minimal.
