Computer Mechanics Laboratory 27th Annual Sponsors’ Meeting January 26, 2015 University of California, Berkeley Preliminary Program Monday, January 26, 2015 7:30 – 8:00 Coffee and Rolls 8:00 – 8:15 Director David Bogy WELCOME AND 2014 ANNUAL REPORT Servos and Actuators  Session I 8:15 – 9:45 Professor Tomizuka  Enhanced decoupled disturbance observer for dual-stage HDDs Shiying Zhou  High-frequency vibration detection and suppression in hard disk drives based on extended state observer Minghui Zheng  High-frequency vibration suppression based on multirate disturbance observer with application to hard disk drives Liting Sun  Vibration suppression based on adaptive feed-forward control with IIR filter Shiying Zhou  Enhanced wide-spectrum vibration suppression based on adaptive loop shaping in hard disk drives Liting Sun  2015 RESEARCH PROPOSALS Break 9:45 – 10:00 Session II Servos and Actuators 10:00 – 11:00 Professor Horowitz  Dual Stage Adaptive RRO Tracking with Application to BPMR Behrooz Shahzavari  Multi-rate State Estimation and Control for Self Servo Writers Behrooz Shahzavari  Dealing with system uncertainty in the adaptive RRO following algorithm Omid Bagherieh  2015 RESEARCH PROPOSALS Session III Head/Media Tribology 11:00 – 12:15 Professor Komvopoulos  TEM/EELS characterization of ultrathin amorphous carbon films for HAMR Jun Xie  Corrosion study of hard disk by electrochemistry Feifei Shi  Nanomechanical and Nanotribological Properties of Thin Amorphous Carbon Films for Magnetic Recording Josef Matlak  Thermomechanical analysis of ultrathin a-C films using Peridynamics Sayna Ebrahimi  2015 RESEARCH PROPOSALS 12:15– 1:15 Lunch catered to Banatao Auditorium (CITRIS Building) Head/Media Tribology Testing and Numerical Simulation I Session IV 1:15 – 2:30 2:30 – 2:45 Professor Bogy  Lubricant flow on the slider’s air bearing surface in a hard disk drive Alejandro Rodriguez  Lubricant flow on the disk surface in a hard disk drive Alejandro Rodriguez  Viscoelastic Behavior of PFPE lubricants under HAMR conditions Soroush Sarabi  Overview of CMLAir Static and Dynamic HAMR software Tholfaqar (Dolf) Mardan  2015 RESEARCH PROPOSALS Break Session V Head/Media Tribology Testing and Numerical Simulation II 2:45 – 4:30 Professor Bogy 4:30 – 5:00 5:00 – 6:30 6:00 – 6:30 6:30 – 7:30  Contact detection and lubricant modulation in the head-disk interface Yung-Kan Chen  Wear study in the head-disk interface Yung-Kan Chen  Experimental study of the head disk interface using a Touchdown Sensor Yuan Ma  Lubricant reflow on the disk after laser heating in HAMR Haoyu Wu  Experimental heat transfer investigation of the HDI in HAMR Haoyu Wu  Thermal radiation and conduction of layered structures with a gap: application to HAMR Dr. Bair Budaev  Thermal analysis of HAMR HDI using wave theory Amin Ghafari  2015 RESEARCH PROPOSALS Open Forum Discussion and Industry Feedback (Banatao Auditorium) Posters session and Buffet reception (Banatao Auditorium) Advisory Council Meeting FANUC Room – 6th Floor, Etcheverry Hall Lab Tours and Discussions 9, 5121, 5147, 5149 & 5151 Etcheverry Hall