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PROFILE:

 

Ajay Raghavan

Ajay Raghavan researches device fleet health management, diagnostics and prognostics, electromechanical systems, and sensors -- focusing on application areas such as energy storage devices and transportation infrastructure. He is the Principal Investigator on the SENSOR project under the ARPA-e AMPED program, where he is leading a multidisciplinary effort to develop fiber optic sensing-based battery management systems. His expertise includes modeling, dynamics, pattern recognition and signal processing algorithms, piezoelectric transducers, and wave propagation.

Prior to joining PARC, Ajay worked as Lead Algorithms Engineer at Metis Design Corporation, where he was involved in developing compact active sensor systems and algorithms for health monitoring of aerospace structures using guided-wave methods. He has also consulted for various companies and agencies such as Boeing, NASA, Air Force Research Laboratory, Goodrich, ATK, and Vought Aircraft.

Dr. Raghavan conducted his Ph.D. work on guided-wave structural health monitoring at the University of Michigan Ann Arbor, where he also obtained his Master's degree in Aerospace Engineering. He has a Bachelor's degree in Mechanical Engineering from the Indian Institute of Technology Bombay. Ajay has 8 pending patents; published two book chapters and 25+ papers in leading journals and conferences, and received the Best Paper award at the Prognostics and Health Management Society conference; and was awarded an NSF fellowship to attend the Pan American Advanced Study Institute on damage prognosis in Brazil.

In his spare time, Ajay enjoys sports (especially cricket!), the arts, working out, and hiking.

 

PARC publications

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2014

SENSOR: embedded fiber optic sensing for accurate state estimation in advanced battery management systems

Materials Research Society Spring 2014 Symposium Q: : Materials, Technologies and Sensor Concepts for Advanced Battery Managemen

21 April 2014

Embedded Fiber Optic Chemical Sensing for Internal Cell Side-Reaction Monitoring in Advanced Battery Management Systems

Materials Research Society Spring 2014 Symposium Q: : Materials, Technologies and Sensor Concepts for Advanced Battery Managemen

21 April 2014

SENSOR: embedded fiber-optic sensing systems for improved battery management

Advanced Automotive Battery Conference 2014

3 February 2014

2013

Automated fault detection in violation enforcement cameras within electronic toll collection systems

International IEEE Conference on Intelligent Transportation Systems

6 October 2013

Algorithm design for automated transportation camera image and video quality check modules

SPIE Conference on Electronic Imaging - Video Surveillance and Transportation Imaging Applications

3 February 2013

2012

Reference image-independent fault detection in transportation camera systems for nighttime scenes

IEEE Conference on Intelligent Transportation Systems 2012

16 September 2012

Detection of scene obstructions and persistent view changes in transportation camera systems

IEEE Conference on Intelligent Transportation Systems 2012

16 September 2012

 

 

 

other publications

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2010

Fabrication of a multi-physics integral structural diagnostic system utilizing nano-engineered materials

Annual Conference of the Prognostics and Health Management Society, Portland, Oregon

20 August 2010

2009

Service life assessment methodology for composites

Fiber Reinforced Polymer Composites for Infrastructure Applications Conference, San Francisco, California

1 November 2009

Fundamentals of guided elastic waves in solids

Encyclopedia of Structural Health Monitoring (book)

15 September 2009

A cable-free digital sensor bus for structural health monitoring of large-area composite structures

Annual Conference of the Prognostics and Health Management Society, San Diego, California

3 September 2009

Analytical axisymmetric coupled piezo-elastodynamicmodels for guided-wave structural health monitoring

International Workshop on Structural Health Monitoring, Stanford, California

1 September 2009

Structural health monitoring using carbon nanotube enhanced composites

International Workshop on Structural Health Monitoring, Stanford, California

1 September 2009

Vector-based damage localization for anisotropic composite laminates

International Workshop on Structural Health Monitoring, Stanford, California

1 September 2009

2008

Vector-based localization for damage position identification from a single SHM node

1st International Conference on Prognostics and Health Management, Denver, Colorado

1 October 2008

Effects of elevated temperature on guided-wave structural health monitoring

Journal of Intelligent Material Systems and Structures

1 December 2008

Co-located triangulation: single node damage position identification

Sensors, Signal and Information Processing Workshop, Sedona, Arizona

1 May 2008

2007

Design guidelines for guided-wave structural health monitoring systems using piezoelectric transducers

International Congress of Mechanical Engineering (COBEM), Sao Paulo, Brazil

1 November 2007

Modeling of wedge-shaped anisotropic piezocomposite transducer for guided wave structural health monitoring

15th AIAA/ASME/AHS Adaptive Structures Conference, Honolulu, Hawaii

22 April 2007

Modeling of guided-wave excitation by finite-dimensional piezoelectric transducers in composite plates

15th AIAA/ASME/AHS Adaptive Structures Conference, Honolulu, Hawaii

22 April 2007

Review of guided-wave structural health monitoring

The Shock and Vibration Digest

1 March 2007

2005

Lamb-wave based structural health monitoring

Damage prognosis for aerospace, civil and mechanical systems (book)

1 January 2005

2004

Modeling of piezoelectric-based Lamb wave generation and sensing for structural health monitoring

SPIE Symposium on Smart Structures and Materials/NDE, San Diego, California

15 March 2004

2002

Hysteresis modeling in piezoceramic actuator systems

SPIE Symposium on Smart Materials, Structures and Systems, Bangalore, India

30 October 2003

 

 

 

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events   view all 

ARPA-E Energy Innovation Summit and Technology Showcase 2014
25 February 2014 - 26 February 2014
Gaylord National Hotel & Conference Center | National Harbor,, MD