• Response and sound radiation from structures subjected to high intensity acoustic excitation.
• Acoustic Scattering from elastic structures.
• Evaluation of Transmission Loss of structures using the sound intensity technique.
• Sound and vibrational energy flow in structures.
• Noise reduction in idealized truck cabins.
• Damping measurement and evaluation of composite materials.
• Condition monitoring of machine elements.
• Sound power measurements using sound intensity techniques.
• Active Noise and Vibration Control.
• Statistical Energy Analysis.
• Nondestructive Evaluation of Structures, Materials and Thin Films.
• Characterization of Thin Films & Nano Structures.
• Innovative Techniques in Engineering Education.

SPONSORED PROJECTS (%: Approximate Estimate of Dr. Raju’s Share)

• "Acoustic Transmissibility studies on Spacecraft and Rocket Structures," A project sponsored by Indian Space Research Organization (1978 83), Equivalent of $25,000. (Principal Investigator) (100%)
• "Noise Pollution Studies," A project sponsored by the University Grants Commission of Government of India (1984), Equivalent of $16,000. (Principal Investigator) (100%)
• "Measurement of Damping of Graphite Epoxy Composites," A project sponsored by NASA Marshall Space Flight Center, Huntsville, AL (1984 89), $248,337. (Investigator) (30%)
• "Structural Vibration of Space Power Systems," A project sponsored by Defense NuclearAgency through the Space Power Institute (1985 89), $445,316. (Investigator) (20%)
• Mechanical System Diagnostics Using Vibration Testing Techniques," NASA MarshallSpace Flight Center, Huntsville, AL, (August 1, 1988 July 31, 1991), $58,000. (Co Principal Investigator) (50%)
• "A Novel Method to Eliminate Internal Resonances in Acoustic Scattering from Fluid Obstacles," National Science Foundation, Washington, D.C. (April 15, 1989 January 31, 1992), $30,640. (Co Principal Investigator) (50%)
• "Support for the International Congress on Sound and Vibration held from March 6 8, 1990, at Auburn University," National Science Foundation, Washington DC, (April 1, 1990 March 31, 1991), $8,000. (Co Principal Investigator) (50%)
• " Noise Transmission Studies on Structures Made of Composite Materials," NASA Langley Research Center, Hampton, VA (September 1989 July 1993), $84,000. (Co Principal Investigator) (50%)
• "Mechanical System Diagnostics Using Vibration Testing Techniques," NASA Marshall Space Flight Center, Huntsville, AL, (August 1, 1991 June 30, 1993), $22,000. (Co Principal Investigator) (50%)
• "Development of a Standard Sound Power Level Specification and Measurement Procedure for Compressor Station Equipment," American Gas Association (February 1, 1991 February 29, 1992), $54,096. (Co Principal Investigator) (50%)
• "Support for Second International Conference on Sound and Vibration," held from March 4 6, 1992 at Auburn University, National Science Foundation, (May 1, 1992 April 30, 1993), $16,000. (Co Principal Investigator) (50%)
• "Validation and Extension of Guidelines of Sound Power Specification and Measurement Procedure for Compressor Station Equipment," American Gas Association, $100,064, (May 1992 May 1994). (Co Principal Investigator) (50%)
• "BEML Engineering Executives in Residence Program in Technology Management," with Thomas Walter Center, United Nations Development Program (UNDP), $20,595 (January 1, 1995 December 31,1995). (Co Principal Investigator) (33%)
• "Research and Testing of Power Line Aggregates (related to noise & vibration control)" United Nations Development Program (UNDP), $20,595 (January l, 1995 December 31, 1996). (Principal Investigator) (100%)
• "Bringing Noise & Vibration Control Research into Classroom Through Case Studies," Thomas Walter Center, Auburn University, $13,000 (June 1995 December 1995). (Co-Principal Investigator) (50%)
• "Non Destructive Evaluation of Materials Using Circumferential Waves," Louisiana Pacific Corporation Grant, $25,000 (Oct. 1995 Dec. 1997). (Principal Investigator) (50%)
• "Research & Training in Material Selection and Characterization: United Nations Development Program (UNDP), $7,500 (February 1, 1996 December 1997). (Principal Investigator) (100%)
• "Development of an Engineering Case Study," Thomas Walter Center for Technology Management, Auburn University, $11,000 (June 1996 June 1997). (Co Principal Investigator) (100%)
• "Novel Organic Semi-conducting Materials: DOE/EPSCOR, $40,000 (March 1, 1996 February 27, 1999). (Co Principal Investigator) (50%)
• "An Instructor's Kit to Aid Development of Case Studies in Engineering," A grant from Assistant Provost for Undergraduate Education, Auburn University, $4,000 (May 1996 April 1997). (Co Principal Investigator) (100%)
• Support for Engineering/Industry Partnership Through Undergraduate Senior Design Projects AIES, NASA Technology Transfer Grant MSFC, $20,000 (January 1997 - December 1997). (Principal Investigator) (50%)
• "Engineering/Industry Partnership Program, Auburn Industrial Extension Service," $180,000 (Sept. 15, 1997 Sept. 14, 2000). (Principal Investigator) (50%)
• "Manufacturing Extension Program Auburn Industrial Extension Service," Engineering Program, National Institute of Standards Technology, Alabama Technology Network, $656,500. (November 1996 November 1999) (Principal Investigator) (100%)
• Support for Engineering/Industry Partnership Program AIES, NASA Technology Transfer MSFC, $47,488. (November 1997 November 1998) (Principal Investigator) (100%)
• "Bringing Theory and Practice Together in Engineering Classrooms: A Research Project to Develop Cost Effective Instructional Materials," National Science Foundation, Washington DC, (January 1, 1998 - December 31, 2000) $298,798. (Principal Investigator) (60%)
• "Development of a Case Study," Thomas Walter Center for Technology Management (January 1, 1998 December 31, 1998) $8,345. (Co Principal Investigator) (50%)
• "Development a CD-ROM for a Case Study," Thomas Walter Center for Technology Management, (January 1, 1999 – December 31, 1999) $12,000. (Co-Principal Investigator) (50%)
• "Support for Engineering/Industry Partnership Program - College of Engineering," (September 1998 - August 1999) $53,000. (Principal Investigator) (100%)
• "Multimedia Courseware Development to Bring Real World Issues into Classrooms - A Research Project to Improve Engineering and Technology Education," National Science Foundation, Washington DC, (September 1999 - September 2003) $432,654. (Principal Investigator) (55%)
• "Research Experience for Undergraduate Students," National Science Foundation, Washington DC, (September 1999 - December 2000) $12,500. (Principal Investigator) (60%)
• "Research & Development in Bioacoustic Sensors," funded by a grant from National College of Chiropractic, Chicago, IL, $132,000. (April 1997 March 2003) (Principal Investigator) (100%)
• Development of A Cooling Tower Case Study," Southern Nuclear Company, Augusta, GA, (September 1999 - August 2001) $11,000. (Principal Investigator) (100%).
• "Modal Analysis of Brake Pads," sponsored by Haldex, Montgomery, AL, (November 1999 - October 2003) $20,000. (Principal Investigator) (100%)
• "Noise and Vibration Control of Heavy Vehicles," Auburn University Research Excellence Pinnacle on Transportation, (November 1999 - October 2001) $41,000. (Co-Principal Investigator) (50%)
• "Modeling and Analysis of Haldex Brake System," Haldex Brake Products Corporation, (February 2000 – September 2002) $44,001. (Principal Investigator) (100%)
• "Special Program to Hold a Focused Faculty Workshop on Case Studies," sponsored by the National Science Foundation, Washington DC (March 1, 2000 - February 2002), $41,621. (Principal Investigator) (70%)
• "Engineering/Industry Partnership Program," Auburn Engineering Technical Assistance Program, $360,000 College of Engineering Extension Service, (October 1999 - September 2003). Principal Investigator (100%).
• "Research Experience for Undergraduate Students," sponsored by the National Science Foundation, Washington DC, (September1, 2000 - August 31, 2002), $12,500. (Principal Investigator) (70%)
• "Educating Engineers for the Information Age: A Real World Case Studies Based Project, " sponsored by the National Science Foundation, Washington DC, (February 1, 2001 - January 21, 2005), $747,745. (Principal Investigator) (60%)
• "Development of an Actively Damped Electric Cable," UAH Alabama Space Grant Program $20,002 (February 2001 – January 2002). (Principal Investigator) (50%)
• “Research Experience for Undergraduate Students,” sponsored by the National Science Foundation, Washington, DC, (March 2003 – January 21, 2005), $12,500. (Principal Investigator) (70%)