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Prasad to present paper at India Aeronautics International Conference

Stevens professor will discuss role of mufflers to reduce noise in aircraft

HOBOKEN, N.J. - Stevens Institute of Technology Professor Dr. Marehalli G. (MG) Prasad has been invited to give a presentation on his recent findings on noise reduction for the aircraft industry during the AERO INDIA 2009: International Seminar on Aerospace-Perspectives and Trends in Technologies.

The Seventh Annual Aero India is sponsored by the Ministry of Defense for the Government of India and will be held at the Air Force Station Yelahanka in Bangalore, India, February 11-15.

"This is a recognition of our work in the area of noise control that has important applications to aircraft both in general aviation and the military," said Prasad. "Aero India seminars are recognized international events, and I am pleased that our work is featured in this important forum."

Noise reduction is considered to be one of the major challenges in aircraft industry, since beginning of bi-plane era to recent advanced fast jet aircraft era. According to Prasad, aircraft noise can be classified into two categories: interior (cabin noise) and exterior noise. Some of the typical structure-borne and air-borne noise sources for both interior and exterior noise are engine, cabin conditioning system, fuselage, landing gear, canopy and wings, etc.

To combat the problem, engineers have used mufflers to reduce the noise generated by propulsion system and cabin conditioning system. The paper that Prasad will present to the conference gives an overview of noise in aircraft, the application of mufflers used in the general aircraft industry and also how effectively the muffler systems can be designed by taking into account the source and termination conditions.

The paper, co-authored by Rajavel Balaguru, a graduate student at Stevens, looks at the role and scope of mufflers in reducing noise in aircraft including the outcome of result and the effectiveness of mufflers in particularly dealing with cabin conditioning system noise.

Dr. MG Prasad is a professor of Mechanical Engineering and the director of the Noise and Vibration Control Laboratory at Stevens Institute of Technology. He has completed more than 100 publications and presentations in journals and conference proceedings in the areas of acoustics, noise and vibration.

Prasad has worked as a noise control consultant for AT&T, IBM and the United Nations Industrial Development organization (UNIDO). In 1991 he served as the general chairman of the National Conference on Noise Control Engineering.

He also served as the vice-president of external affairs of the Institute of Noise Control Engineering, USA, 1987-1992, and is a fellow of the Acoustical Society of America, a fellow of the American Society of Mechanical Engineers and a fellow of the Acoustical Society of India. He is also a board certified member of Institute of Noise Control Engineering, USA. Dr. Prasad obtained his Bachelor of Mechanical Engineering degree from University Visvesvarayya College of Engineering of Bangalore University, 1971; his Master of Science degree in Mechanical Engineering from Indian Institute of Technology, Madras, 1974; and his Doctor of Philosophy degree in Mechanical Engineering from Purdue University, West Lafayette, Indiana, 1980.

About Aero India

Aero India has already carved a niche for itself globally as a premier aerospace exhibition, with six successful editions organized between 1996 and 2007.The show brings exhibitors from all around the globe to showcase the best in aviation. Aero India includes both flight and static displays of a wide range of civil and military aircrafts from leading manufacturers, vendors and suppliers.

About Stevens Institute of Technology

Founded in 1870, Stevens Institute of Technology is one of the leading technological universities in the world dedicated to learning and research. Through its broad-based curricula, nurturing of creative inventiveness, and cross disciplinary research, the Institute is at the forefront of global challenges in engineering, science, and technology management. Partnerships and collaboration between, and among, business, industry, government and other universities contribute to the enriched environment of the Institute. A new model for technology commercialization in academe, known as Technogenesis®, involves external partners in launching business enterprises to create broad opportunities and shared value. Stevens offers baccalaureates, master's and doctoral degrees in engineering, science, computer science and management, in addition to a baccalaureate degree in the humanities and liberal arts, and in business and technology. The university has a total enrollment of 2,150 undergraduate and 3,500 graduate students with about 250 full-time faculty. Stevens' graduate programs have attracted international participation from China, India, Southeast Asia, Europe and Latin America. Additional information may be obtained from its web page at www.stevens.edu. For the latest news about Stevens, please visit www.StevensNewsService.com. **STEVENS**

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