Email: Jiasheng.Zhu@wdc.com
Phone: 408-363-4212
Address: Advanced Mechanical Design and Development 
Western Digital Corporation 
5863 Rue Ferrari 
San Jose, CA, 95138
  

Biography of Jiasheng Zhu

Jiasheng Zhu received his BS in 1989 fron Jiling University of Technology and received his MS in 1992 from Zhejiang University, which is one of the top 5 universities in China. He then worked as a mechanical engineer with Chnina Petrochemical Corperation in Beijing. 3 years later in 1995, he went to Japan and started PHD program at Tokyo Institute of Technology(TIT), where he spent 3 years with Prof. Ono at Department of Mechanical Engineering and Science in doing research work on hydrodynamic oil bearings for hard disk spindle and vibration analysis of disk/spindle system. During his PHD program, the cooperating research with NIDEC, one of the major hard disk companys in the world, earned much experence with hard disk drive. In 1998, he received his PHD. He then joined the Mechanics and Tribology lab of Prof, Talke at Center for Magnetic Recording Research (CMRR), UC, San Diego, as a postdoctor .

TIT studies: He studied and compared 5 kinds of journal and 4 kinds of thrust hydrodynamic oil bearings for the hard disk spindles. He also analyzed the vibration of the disk/spindle system with hydrodynamic oil bearings using model analysis method and Matlab software.

CMRR studies: He currently works on hardware and software of 5 wavelength interferometer for measurement on head/tape spacing and tape asperity compliance. He also contributes his effort to look into the hard disk head slap problem.

Recent Pubications:

  1. Study on Hydrodynamic Journal Bearings for Hard Disk Spindles

  2. (JSME, Trans. 64, No. 622 c, 1998, in Japanese)
  3. Study on Hydrodynamic Thrust Bearings for Hard Disk Spindles

  4. (JSME, Trans. 64, No. 622 c, 1998, in Japanese)
  5. A comparison Study on the Characteristics of five Types of Hydrodynamic Oil Journal Bearings

  6. (ASME, Advances in Information Storage System,in press)
  7. A comparison Study on the Performance of Four Types of Oil Lubricated Thrust Bearings

  8. (ASME, Journal of Tribology, in press)

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