Minqing Jing

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With the increase of rotating speed, the rotor unbalance of the modern rotating machinery becomes more sensitive. The on-line active balance is an ideal balancing mode for precision machines. Electromagnetic balancer is a non-contact new-structure balancing device in the on-line balancing field, as it can reliably work in high-speed condition and keep the(More)
With the development of the high-speed rotating machine, the rotor is becoming very sensitive for the mass unbalance caused by the asymmetry design, machining error, assembly error and operational fault. In order to actively reduce the rotor unbalance, a new electromagnetic balancing mechanism is proposed. This balancer is driven by the ring coil and keep(More)
High-speed precision machining is one of the important development directions of modern machining technology, high-speed spindle system is widely used in high-speed machining, and motorized spindle is the main choice of the high-speed machine tool spindle. The electromagnetic force caused by rotor unbalance is one of main vibration sources of motorized(More)
Chatter vibrations result in poor surface finish, reduced productivity, and shortened tool life in metal cutting. Although chatter stability and monitoring techniques are broadly studied in literature, the deployment of process monitoring system in the shop floor still presents a challenge. In this paper, we have constructed an online prototype system for(More)
This paper presents a model updating approach by combining the design of experiments technology (DOE) with design parameters updating methodology, and improves the finite element model of disk-rod-fastening rotor based on natural frequency. Using DOE, regression analysis, variance analysis, response surface methodology and steepest descent method replace(More)
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