Papers by Author: Zhen Yin

Abstract: A mathematical model for the Double-crystal Piezoelectric Cantilever Generating Unit (DPCGU) was built and a new Piezoelectric Generator Based on Stairs (PGBS) with DPCGU was designed in this paper, the energy conversion efficiency of the PGBS which makes use of human kinetic energy was improved and the deficiencies of existing piezoelectric energy harvesting technology were avoided. The experiment of the generating capacity for the PGBS was carried out, and the consistency of the mathematical model results and the experimental results was verified by comparison.

Abstract: Based on the theory of ultrasonic vibration, a new type of ultrasonic atomizing vibrator (UAV) with a vibrating steel sheet was proposed. By using the finite element analysis software to simulation analysis and research for the new type of vibrator, the frequency and vibration mode of atomizing steel sheet was obtained and the prototype of vibrator was fabricated. The impedance and vibration displacement of the vibrator was tested and the experiment of the new type of vibrator was carried out, which verified the feasibility of the new type of vibrator design method.

Abstract: In this paper, the background of ultrasonic vibration internal grinding (UIG) technology was described; the main parameters of the UIG technology were summarized. The recent development of the UIG mechanism, system and ultrasonic vibration internal honing technology was overviewed. The development trend and future prospect of the UIG technology were proposed based on above analysis.

Abstract: A design solution of machine tool control system and its hardware and software design were proposed for the requirement of high precision internal grinding. The ARM microprocessor was used as the system control center and the technical grade touch screen was used as the human machine interface. The feed motion of the X, Z 2-axis servo motor was controlled by the system to complete the grinding path, and the machine tool switching signal was controlled by the Soft PLC Technology. The whole system has the advantage of stable, high performance and user friendly, meeting the requirement of high precision grinding.

Abstract: Based on the FEM, the properties of the vibrator and the shaft in new ultrasonic vibration internal grinding system were studied in this paper. The design method of new ultrasonic vibration internal grinding (UVG) system by using rotary non-contact transmission device was proposed according to the influence of the sleeve length and thickness to ultrasonic vibration shaft. Experiments about the vibrator，the shaft and the ultrasonic vibration internal grinding system were studied by using PSV-400 Laser scanning vibrometer, and the consistency between the new ultrasonic vibration internal grinding prototype and theoretical design was confirmed.