[SKL-UPMT X ISE X HKSPE Research Seminar Series] Vibration-Inspired Innovations in Precision Engineering: From Structural Coloration to Non-Contact Actuation

Abstract
My research vision is to bring innovations to precision engineering by pushing the limit of and expanding the boundary of precision manufacturing. Conventionally, vibration is undesirable in any precision equipment and processes; however, when vibration is deliberately introduced with a careful design, it can bring unprecedented process capabilities and novel precision machine tool designs. In this talk, I will present two examples that apply unorthodox vibration in the precision cutting process and bearing designs. The first example introduces a vibration-assisted ultraprecision cutting method to fast pattern controllable wavelength-scale gratings for structural coloration and advanced optics. In the second example, I will introduce the design and dynamics modeling of non-contact actuation purely based on structural vibration to generate a stable air film in the near field. Finally, I will briefly share some other ongoing research projects that hopefully bring inspiration to future precision.