DEPARTMENT OF Mechanical Engineering

Educational Qualification :

• Ph.D. National University of Singapore, Singapore
• M.S. (Structual Dynamics) University of Cincinnati, Ohio, Singapore
• B.Tech ( Mechanical Engineeing) National Institute of Technology, Calicut, India

Specializations :

• Acoustics, Dynamics, Fluid structure interaction

Current Research Interest :

• Acoustics
• Advanced acoustic sensors and signal processing
• Fluid Structure Interaction
• Cable dynamics

Publications / Conference :

International Publications

Journals

• Unnikrishnan Kuttan Chandrika, Venugopalan Pallayil, Kian Meng Lim, and Chye Heng Chew. “Flow noise response of a diaphragm based fibre laser hydrophone array.”Ocean Engineering,Volume 91,(2014), Pages 235-242.
• Unnikrishnan Kuttan Chandrika, Venugopalan Pallayil, Kian Meng Lim, and Chye Heng Chew. “Pressure compensated fiber laser hydrophone: Modeling and experimentation.”The Journal of the Acoustical Society of America 134, no. 4 (2013), Pages 2710-2718.
• Unnikrishnan Kuttan Chandrika, Jay H. Kim, “Development of an algorithm for automatic detection and rating of squeak and rattle events”, Journal of Sound and Vibration, Volume 329, Issue 21, (2010), Pages 4567-4577.
• Unnikrishnan Kuttan Chandrika, Jay H. Kim, “Development of a new Squeak and Rattle detection algorithm”, SAE International Journal of Passenger Cars- Mechanical Systems, October (2009) vol. 2 no. 1 Pages 1424-1430.
• M. Sabu Sebastian, K.C. Unnikrishnan, S. Narayanan, “Viscoelastic properties of Kevlar-29 fabric tape strength member”, Mechanics of Materials, Volume 40, Issue 11, November (2008), Pages 949-960.

Conferences

• Unnikrishnan Kuttan Chandrika, Hari Vishnu, “A vector sensing scheme for underwater acoustics based on particle velocity sensing”, IEEE OCEANS conference, 2015 (Accepted).
• Lee, G. J., Unnikrishnan, Kuttan Chandrika, Kim, Y., & Kim, J. Computerized detection and rating of squeak and rattle events in automobiles. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings (Vol. 248, No. 1, pp. 864-872), 2014, September.
• Unnikrishnan Kuttan Chandrika and Pallayil Venugopalan, “Signal distortion due to low-pass filtering in phase generated carrier demodulation schemes for interferometric sensors,” in SYMPOL 2013, Cochin, India, Oct 2013.
• X. Yang, C. Zhihao, J.H. Ng, P. Venugopalan, and Unnikrishnan Kuttan Chandrika, “A PGC demodulation based on differential-cross-multiplying and arctangent algorithm with low harmonic distortion and high stability,” in Proceedings of SPIE, vol.8421, pp.84215J-1, July 2012.
• Unnikrishnan Kuttan Chandrika, P. Venugopalan, K. M. Lim, and C. H. Chew, “Design considerations for a DFB fibre laser based high sensitivity broadband hydrophone,” in Proceedings of ECUA 2012, Edinburgh, UK, July 2012.
• P. Venugopalan, M. A. Chitre, K. Subash, A. R. Raichur, M.Ignatious, K.C. Unnikrishnan,S.P. Tan, and R.C. Naveen, “Ambient noise imaging: experiments with ROMANIS,” in ICTCA 2011- 10th International Conference on Theoretical and Computational Acoustics, Taipei, April 2011. (Invited).
• Unnikrishnan Kuttan Chandrika, P. Venugopalan, M.A. Chitre, and K.Subash, Estimated flow noise due to a Digital Thin Line Array, IEEE Oceans Conference, Santander, Spain, June6-9, 2011
• P. Venugopalan, M. A. Chitre, K.C. Unnikrishnan, and K. SUBASH, “Digital thin line towed arrays: a low cost sensing solution for small autonomous underwater vehicles,” in 4th International Conference and Exhibition. Underwater Acoustic Measurements: Technologies and Results, (Greece), June 2011. (Invited).
• Unnikrishnan Kuttan Chandrika, P. Venugopalan, Z. Chen, and J. H. Ng, “Development of a high sensitivity DFB fibre laser hydrophone – work in progress at national university of Singapore,” inIEEE/OES SYMPOL Cochin, India, November 2011.
• M.Sabu Sebastian,K.C. Unnikrishnan, S.Narayanan,

Abstracts, Non-Refereed Proceedings, and Presentations

• Unnikrishnan Kuttan Chandrika, Venugopalan Pallayil, Nicholas P. Chotiros, Marcia J. Isakson, “Seabed characterisation using a low cost digital thin line array; results from TREX-13 experiments”, Acoustical Society of America Meeting, Indianapolis, October-2014.