MyLab  

Centre for Nano Science and Engineering,
Indian Institute of Science

 
  

  Associate Editor
Journal of Shock & Vibration

Current Highlights

2010 Hetenyi Award for the best paper of 2008 in Experimental Mechanics from the Society for Experimental Mechanics

Highest number of modes ever captured from single measurement in the history of structural vibrations

Important Links

Indian Institute of Science,

Dept of Mechanical Engg.,

MEMS Lab,

Centre for Excellence in Nanoelectronics

 

Welcome to my web page!

The current focus of my research is on understanding and exploiting the dynamics of micro and nano scale mechanical structures used in MEMS and NEMS devices. In particular, I am interested in development of dynamic sensors at micro and nano scales for a host of applications in acoustics, ultrasonics, inertial navigation and medical diagnostics. At small scales, mechanical structures such as beams, plates, membranes, etc., commonly used in MEMS and NEMS devices have very high natural frequencies (ranging from a few KHz to a few GHz). This frequency range of application is fairly new to mechanical structures. At such frequencies, we need to pay attention to phenomena generally ignorable at macro scales. The need for realising very high Q devices leads to careful study of energy dissipation at micro and nano scales. In recent years, I have devoted considerable effort on advancing the current understanding of squeeze film damping---an energy dissipation mechanism that dominates in silicon structures vibrating over a fixed substrate with very narrow air-gaps. In my lab, we have studied several aspects of this damping using analytical, numerical and experimental techniques. We continue to explore energy dissipation at small scales, including intrinsic material damping using various techniques.

In addition, I am also interested in molecular motors, nano structure arrays and their dynamics, computational nanoengineering, and multiscale modeling. In particular, I am interested in developing computational tools and techniques that help in modeling phenomena at disparate scales present in micro and nano devices.

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Professor & Chairperson
Centre for Nano Science and Engineering
Indian Institute of Science, Bangalore
Bangalore - 560012, INDIA

Contact Info:
Phone: +91 (80) 2293 3224, +91 (80) 2360 8659
Fax: +91 (80) 2360 1648
Email: pratap@mecheng.iisc.ernet.in

Brief Background:
At IISc since 1996
Mech. & Aero. Engineering, Cornell Univ., 1994-96
Ph.D. Cornell University, Ithaca, NY, USA, 1993
M.S. University of Arizona, Tucson, AZ, USA, 1987
B. Tech (Hons) IIT Kharagpur, Kharagpur, India, 1985