Design aspects and test results of a high speed bearingless drive
Following the trend towards smaller drives operating at increased speeds, the present work examines the suitability of bearingless drives for high speed operation. With rising rotational frequency, the requirements for the drive components differ significantly from a design specification for low speeds. Therefore, the design of the stator, rotor and winding system is described in detail. In order to verify the conducted analytical and FE calculations, a laboratory prototype was constructed reaching - to the knowledge of the authors - a world record speed for bearingless drives of 115.000rpm. Eventually, measurements showing specific losses and operational behavior of the drive are presented.
Now a day, more and more enterprises like PSA Peugeot Citroen need a new prototyping approach called virtual prototyping. The efficiency of virtual reality dedicated solutions is closely linked with the simulation and integration quality of different sensory feedbacks in a same system. Here, we present a new visuo-haptic configuration which preserves the performance factors of integrated sensory feedbacks. In addition, we propose a new haptic rendering method for rigid objects manipulation with surface properties (smooth, textures …) and without the well known undesirable effects from traditional methods (uncontrolled friction, sticking effects …). The configuration is evaluated with a first industrial concrete scenario. We also study a second visuo-haptic configuration using a video see-through head mounted display for blind manipulation applications. A second industrial scenario is presented