MINNEAPOLIS, July 31, 2008: The Lindbergh Foundation announced today that Ganesh Raman, a professor at the Illinois Institute of Technology in Chicago, IL, has been awarded a 2008 Lindbergh-Lycoming Grant for his project entitled, “Using High Frequency Sound Waves from Ultrasonic Actuators to Reduce Noise from Commercial Aircraft.” This is the third Lindbergh-Lycoming grant to be awarded in the partnership between Lycoming Engines and the Lindbergh Foundation to specifically fund a project focusing on aviation/aerospace.
The adverse effect of noise has been the subject of extensive research for many years. Repeated exposure to intense noise can cause permanent hearing impairment, sleep loss, increased stress, and other maladies. Aircraft noise is a problem that affects millions of people who live near airports worldwide. Noise also restricts the maximum utilization of airports and air transportation, which could hamper the economic development of the region. Current noise abatement techniques typically result in the loss of payload capacity and fuel efficiencies, making them undesirable. Dr. Ganesh Raman proposes a paradigm shift to deal with this issue. Instead of the current passive flow control techniques, like lobed nozzles and chevrons, which are unable to adapt to changing working loads of the aircraft, he plans to develop an active High Frequency Flow Control (HFFC). Large air vortices produced by the engine are responsible for a significant percentage of total jet noise. Powered Resonance Tubes (PRTs) produce a high intensity acoustic tone that disrupts the air vortices, reducing the jet noise; however, they create their own noise. Dr. Raman plans to make the PRT produce high frequency sound instead, which is inaudible to the human ear, but still interferes with the air vortices to reduce the engine noise. An added benefit to this technique is that the HFFC can be turned on during take-offs and landings, when aircraft are noisiest, and off during cruising time, to retain maximum fuel economy. In addition, the high frequency PRT has no moving parts, making the operation simple and highly reliable.
Dr. Raman received one of 10 Lindbergh grants awarded so far this year. He was chosen from 166 applicants from around the world. Lindbergh Grants are made in amounts up to $10,580, a symbolic amount representing the cost of building Charles Lindbergh̢????s plane, the Spirit of St. Louis, in 1927. To date, nearly $3 million has been awarded to 294 researchers.
“Today’s students will share this planet with more than 8 billion people. If we are to sustain our species and our planet, it is imperative that we make full use of the one expandable resource available to us: human intelligence,” said Gregg Maryniak, Chairman of the Grants Committee and Vice Chairman of the Foundation. “The Lindbergh Grants program attracts researchers who are passionate about the environment and about finding solutions to protect and sustain our world.”
“As an unknown in aviation, Charles Lindbergh struggled to find the financial backing he needed to pursue his dream of making a non-stop, solo flight from New York to Paris. The Lindbergh Foundation Grants Program identifies and supports highly creative and dedicated researchers from around the world and provides them with the same opportunity for success as Charles Lindbergh received. That’s why the Lindbergh Grant is set at $10,580,” said Maryniak. “Many of our grant recipients are ‘unknown’ in their fields, too. For them, receiving a Lindbergh Grant provides much-needed credibility to their work and typically enables our recipients to secure additional funding, providing them with valuable leverage.”??
The Lindbergh Grants program maintains an excellent reputation among the scientific community and the public sector for supporting exceptional, high-quality projects and dedicated researchers. Lindbergh grant applications undergo a rigorous five-step review process focused on evaluations by two independent all volunteer review groups, including a 73-member Technical Review Panel. This international panel is comprised of knowledgeable and respected individuals drawn from the various fields in which Lindbergh grants are made.
The annual deadline for all Lindbergh Grant applications is in mid-June for funding the following year. The extended deadline for the Lindbergh-Lycoming Aviation Grant is Oct. 30, 2008, with funding in July 2009.
About the Lindbergh Foundation
The Lindbergh Foundation is a public 501(c)(3) nonprofit organization, based in Anoka, Minnesota, which supports great innovations that foster the environment for a planet in balance. The Lindbergh Foundation also values individual initiative and accomplishments. Its programs are devoted to supporting, honoring, and educating individuals, through three major programs: the annual Lindbergh Award, presented to individuals for significant contributions toward balancing nature and scientific innovation in their work; the Lindbergh Grants program, which provides grants in amounts up to $10,580 (the cost of building the Spirit of St. Louis in 1927) for research or education projects that will make important contributions to the technology/environment balance; and a variety of educational events and publications centered on the balance theme.