Ratan Jha Ph.D.

RatanRatneshwar (Ratan) Jha, Ph.D.
Professor and Graduate Coordinator 
314D Walker Engineering Building
Mississippi State, MS 39762
Phone: (662) 325-2911
Email: Jha@ae.msstate.edu

 

 

 

 

 

 

Education

Ph. D.       Mechanical Engineering, Arizona State University, Tempe, 1999
M.S.          Aerospace Engineering, Georgia Institute of Technology, Atlanta, 1982
B.Tech.     Aeronautical Engineering (Honors), Indian Institute of Technology, Kharagpur, 1981

Appointments

  • Professor, Aerospace Engineering, Mississippi State University, 2015-Present
  • Director, Raspet Flight Research Laboratory/Advanced Composites Institute, MSU, 2012-2016
  • Associate Professor, Aerospace Engineering, Mississippi State University, 2012-2015
  • Associate Professor, Mech. and Aeronautical Engineering, Clarkson University, 2005-2012
  • Assistant Professor, Mech. and Aeronautical Engineering, Clarkson University, 1999-2005
  • Aeronautical Engineer/ Deputy Manager (Design)/ Manager (Design), Aerodynamics Group, Hindustan Aeronautics Limited (HAL), Bangalore, India, 1983-1995

Research Areas

  • Structural Health Monitoring
  • Elastic Wave Propagation
  • Modeling of Composite and Smart Structures
  • Intelligent Control (Smart Structures and Aerospace Vehicles)
  • Unmanned Aerial Vehicles
  • Multidisciplinary Design Optimization

Teaching Areas

  • Intro to Aeronautical Design
  • Mechanics of Materials
  • Aerospace Structural Analysis
  • Design of Aerospace Structures
  • Aircraft Performance and Flight Mechanics
  • Aircraft Stability and Control
  • Engineering Design Methodology

Principal Research Sponsors

  • NASA, AFOSR, ARO, NSF, FAA, Boeing, New York State

Selected Research / Collaboration Activities

  • Wavelet spectral finite element for guided wave propagation in composites – AFOSR
  • Modeling of carbon nanotube composites based on nonlocal elasticity approach – ARO
  • Damage detection in experimental bridge model using Hilbert-Huang transform – New York State
  • Model selection, updating, and averaging for probabilistic fatigue damage prognosis – NASA
  • Hybrid Adaptive Ascent Flight Control for a Flexible Launch Vehicle – NASA

Awards and Honors

  • Fellow, American Society of Mechanical Engineers, 2014
  • Associate Fellow, American Institute of Aeronautics and Astronautics (AIAA), 2005
  • General Chair, 22nd AIAA/ASME/AHS Adaptive Structures Conference, 13-17 January 2014, National Harbor, Maryland
  • Technical Chair, 21st AIAA/ASME/AHS Adaptive Structures Conference, 8-11 April 2013, Boston, Massachusetts
  • Summer Faculty Fellow, AFRL/ML, NDE Branch, Dayton, OH , 2007
  • Summer Faculty Fellow, AFRL/VS, Albuquerque, NM, 2006
  • Member – Editorial Board, International Journal of Aerospace Engineering
  • Member – AIAA Adaptive Structures Technical Committee (2002-Present)
  • Member – ASME Nondestructive Structural Monitoring and Diagnosis TC (2013-Present)
  • Research cited in “Year in Review 2011 and 2014,” Aerospace America (AIAA)
  • John Graham Faculty Research Award 2005, Clarkson University
  • School of Engineering Teaching Excellence Recognition, Clarkson Univ. (Spring 2010; Spring 2006)

Selected Publications (Published >120 Journal/Conference Papers):

  • Jha and S.V. Barai, “Neural Networks and Genetic Algorithms in Structural Health Monitoring,” in J. Epaarachchi and G. Kahandawa (Eds.), “Structural Health Monitoring Technologies and Next Generation Smart Composite Structures,” CRC Press, ISBN 9781482226911, 2016.
  • Jha, R. Sullivan, and R. Chennamsetti, “In Situ Structural Health Monitoring Systems for Aerospace Structures: Recent Developments,” in J. Epaarachchi and G. Kahandawa (Eds.), “Structural Health Monitoring Technologies and Next Generation Smart Composite Structures,” CRC Press, ISBN 9781482226911, 2016.
  • Samaratunga, R. Jha, and S. Gopalakrishnan, “Wavelet Spectral Finite Element for Modeling Guided Wave Propagation and Damage Detection in Stiffened Composite Panels,” Structural Health Monitoring, 2016, Vol. 15(3) 317–334.
  • K. Singh, N. K. Singh, and R. Jha, “Analysis of Symmetric and Asymmetric GFRP Laminates Subjected to Low Velocity Impact,” Journal of Composite Materials (published online July 24, 2015).
  • Samaratunga, R. Jha, and S. Gopalakrishnan, “Wave Propagation in Adhesively Bonded Composite Joints Using the Wavelet Spectral Finite Element Method,” Composite Structures, 122 (2015), 271-283.
  • Samaratunga, R. Jha, and S. Gopalakrishnan, “Wave Propagation Analysis in Laminated Composite Plates with Transverse Cracks Using the Wavelet Spectral Finite Element Method,” Finite Elements in Analysis and Design, 89(2014), 19–32.
  • Samaratunga, R. Jha, and S. Gopalakrishnan, “Wavelet Spectral Finite Element for Wave Propagation in Shear Deformable Laminated Composite Plates,” Composite Structures, 108 (2014), 341–353.
  • Alavinasab, R. Jha, and G. Ahmadi, “Modeling of Carbon Nanotube Composites Based on Nonlocal Elasticity Approach,” International Journal for Computational Methods in Engineering Science and Mechanics, 15(2014), 17-25.
  • Coffin, G. Ahmadi, R. Jha, and P. Marzocca, “Deployment Dynamics of a Rolled Micro Air Vehicle Wing,” Journal of Aircraft, Vol. 50, No. 1 (2013), pp. 130-139.
  • Kunwar, R. Jha, M. Whelan*, and K. Janoyan, “Damage Detection in an Experimental Bridge Model Using Hilbert-Huang Transform of Transient Vibrations,” Structural Control and Health Monitoring, 20(1), 2013, pp. 1-15.
  • Watkins and R. Jha, “A Modified Time Reversal Method for Lamb Wave Based Diagnostics of Composite Structures,” Mechanical Systems and Signal Processing, 31(2012), 345-354.
  • Guan, R. Jha, and Y. Liu, “Model Selection, Updating and Averaging for Probabilistic Fatigue Damage Prognosis,” Structural Safety, Volume 33, Issue 3, 2011, pp. 242-249.
  • LeFevre and R. Jha, “Hybrid Adaptive Ascent Flight Control for a Flexible Launch Vehicle,” Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, August 2011, vol. 225, no. 8, 851-862.
  • Shane and R. Jha, “Proper Orthogonal Decomposition Based Algorithm for Detecting Damage Location and Severity in Composite Beams,” Mechanical Systems and Signal Processing 25 (2011), pp. 1062–1072.
  • Jha and C. He, “Adaptive Neurocontrollers for Vibration Suppression of Nonlinear and Time Varying Structures,” Journal of Intelligent Material Systems and Structures, Vol. 15, No. 9-10, Sept.- Oct. 2004, pp. 771-781.
  • Jha, M. Pausley, and G. Ahmadi, “Optimal Active Control of Launch Vibrations of Space Structures,” Journal of Spacecraft and Rockets, Vol. 40, No. 6, November 2003, pp. 868-874.
  • Jha, and J. Rower, “Experimental Investigation of Active Vibration Control Using Neural Networks and Piezoelectric Actuators,” Smart Materials and Structures, Vol. 11, No. 1, February 2002, pp. 115-121.
  • C. Chen, D. Sarhaddi, R. Jha, D. Liu, K. Griffin, and R. Yurkovich, “Variable Stiffness Spar Approach for Aircraft Maneuver Enhancement Using ASTROS,” Journal of Aircraft, Vol. 37, No. 5, September 2000, pp. 865-871.
  • Jha and A. Chattopadhyay, “Multidisciplinary Optimization of Composite Wings Using Refined Structural and Aeroelastic Analysis Methodologies,” Engineering Optimization, Vol. 32, No. 1, 1999, pp. 59-78.
  • Chattopadhyay, C. Seeley, and R. Jha, “Aeroelastic Tailoring Using Piezoelectric Actuation and Hybrid Optimization,” Smart Materials and Structures, Vol. 8, No. 1, February 1999, pp. 83-91.