UROP Proceedings 2010-11

Digital Image Correlation Method for Full-field DeformationMeasurementAdvisor : YE Wenjing / MECHStudent : CAI Yaxiong / MECH(UROP1200, Spring 2011)As a continuation of previous semester’s work, the findings are applied to further investigatean important and specific application – determining the plastic wave speed inside porousmaterial with arbitrary pore size and geometric distribution. The preliminary results show thatthe process of plastic wave propagation is clearly evident and the magnitude of the plasticwave speed is also on the right order compared to approximate theoretical estimation.Micro Resonator for the Measurement of Accommodation CoefficientAdvisor : YE Wenjing / MECHStudent : OU Chubin / MECH(UROP1100 & 1200, Fall 2010 & Spring 2011)MEMS/NMES devices are developing rapidly and they are widely used for their powerfulfunctions. The accommodation coefficient is an important parameter that dictates the gas-wallinteraction in micro structures. Although this parameter is important in the modeling anddesign of MEMS/NMES devices, its actual value is still largely unknown. A newdamping-based approach of using micro resonator to measure this parameter is proposed. Thisproject focuses on the fabrication of the proposed micro resonators. In particular, a microfabrication process is developed and investigated on several resonators with differentdimensions. The release etching time needed for each resonator is studied in detail.Robotic Design Infrastructure – Control System and AlgorithmAdvisorCo-AdvisorStudents: YUEN Matthew M F / MECH: WOO Kam Tim / ECE: WANG Mingxi / MECH(UROP1000, Summer 2011)XIE Yuyang / MECH(UROP1000, Summer 2011)HKUST has competed in quite a number of robotic competitions in the past. The design effortfor each competition was done on an ad-hoc basis and there has not been a systematicapproach in the overall design. This project aims to design a systematic approach towards theoverall system design of a robot. We use simulation approach to analyze and optimize therobot control system and also develop a new control algorithm for the robot. We intend toidentify an approach which can improve the control system algorithm and help to reduce thetime for tuning and to enhance stability.57