Jing Minqing

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Rotor mass unbalance always brings great damage to the rotating machines. The off-line balancing can reduce unbalance, but it can only be implemented when the rotor is stopped, which lowers the production efficiency and causes great economic loss. A real-time embedded monitoring and control system based on DSP&FPGA is introduced in this paper. Combining(More)
For to solve the shortage of measuring the oil-film in roller bearing, this paper researches the ultrasonic method based on equivalent stiffness. It also discusses how the character of transducer affects the ultrasonic oil-film measurement, and takes the dual element transducer and immersion transducer to do the experiment respectively. The ultrasonic(More)
For unbalance of grinding wheel and spindle system in high-speed grinding process, an online dynamic balancing program is proposed. Firstly unbalance factors during grinding process are analyzed, and vibration features excited by these centrifugal forces are defined. Based on these works, technologies on wheel-spindle online dynamic balancing are(More)
Aiming at the vibration control problem of high-speed motorized spindle, a reconfigurable vibration monitoring and control system is developed. The speed control module by PLC and real-time vibration monitoring module by DSP are designed to accomplish some operation condition evaluation tasks such as real-time dynamic display, axis center track analysis and(More)
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