A Tribute to Dick Lyon and Jerry Manning for bringing Statistical Energy Analysis from Concept to CAD
This presentation is a tribute to Richard H. Lyon and Jerome E. Manning for their contributions to the methodology of Statistical Energy Analysis (SEA) to help engineers design mechanical systems with lower noise and vibration levels. It traces the development of SEA from the early days of the 1960’s – when one of the motivations was the need to reduce the vibration levels of the launch rockets in the space program to keep the delicate electronics from failing – through the development of the computer program SEAM – which made SEA accessible to the average CAD engineer. Several examples are given of their successful use of SEA in the design, development and diagnostics of “dynamical systems.” Thanks to Dick and Jerry for helping the world be a quieter place.
Dr. DeJong is Professor Emeritus of Engineering at Calvin University. After receiving his Sc.D. degree from MIT, he served as a senior research scientist and vice president at Cambridge Collaborative, Inc. for 11 years. He then took the position of professor of applied mechanics at Calvin University where he taught for 26 years and also served as the engineering department chair for several years. Recently retired from teaching responsibilities, Dr. DeJong continues his research and consulting in noise and vibration control. He has over 60 research publications and is co-author (with Richard H. Lyon) of a textbook on Statistical Energy Analysis.
A History of Digital Order Tracking and its Applications
Dr. Blough received his BSME and MSME from Michigan Technological University (MTU) in 1990 and 1991 respectively. He then worked at the GM Milford Proving Grounds Noise and Vibration Center for 2 years before leaving to pursue his Ph.D. at the University of Cincinnati, his Ph.D. topic was developing novel signal processing procedures for rotating equipment analysis. Following his Ph.D, Dr. Blough returned to MTU to manage the Noise and Vibrations group at the Keweenaw Research Center.
He moved into the Mechanical Engineering-Engineering Mechanics Department in 2003. Dr. Blough has been involved with the SAE Snowmobile Committee, helping to write the noise testing procedures, advised MTU's Clean Snowmobile Team, advised MTU's SAE Student Chapter, and in excess of 45 MS and Ph.D. students.
Dr. Blough was awarded SAE Fellow Status in 2021 and received the SEM DeMichele award in 2021. Dr. Blough has been recognized with the Outstanding Faculty Advisor award from SAE 3 times and recognized as a Distinguished Professor at MTU in 2021. Dr. Blough has also taught over 40 industry short courses on NVH topics. Dr. Blough's research program of over 100 projects has been 100% industry supported. Dr. Blough has been an author or co-author on over 150 publications.
Currently, Dr. Blough is serving at the Interim Chair of the Mechanical Engineering-Engineering Mechanics Depatmtent at MTU.
Breaking the Sound Barrier: Achieving Quiet Supersonic Flight Over Land
Just over seventy-five years ago, Charles “Chuck” Yeager and the Bell X-1 aircraft “broke” the fictitious sound barrier by flying faster than the speed of sound. The rapid development of supersonic aircraft in the years that followed uncovered a real barrier to commercial supersonic flight: the unacceptably annoying sonic booms which led to restrictions on supersonic flight over land and relegated the Concorde to technological success, but only flying supersonic over water. After decades of research leadership, NASA has developed technology that reduces the sonic boom to a soft “thump”. Now NASA’s Quesst Mission is poised to demonstrate this technology with the X-59: a purpose built supersonic experimental aircraft. Beginning in 2024, Quesst will use the X-59 to collect data defining community response to this thump sound. This data will help replace current prohibitions on supersonic flight over land with a new international certification standard based on acceptable sound levels.
With an eye toward achieving global consensus for noise standards, a goal of Quesst is that the community response data be as broadly representative of the response of the international population as possible. The Quesst team has engaged the international community through a series of workshops that have provided details and sought feedback from industry, academia and regulators
The presentation will describe the history, technology, and research plans behind the Quesst Mission. The international engagement efforts will also be highlighted.
Peter Coen is Mission Integration Manager for NASA’s Quesst Mission. He is responsible for ensuring that the X-59 aircraft development, in-flight acoustic validation and community test elements of the Mission stay on track toward delivering on NASA’s Critical Commitment to provide quiet supersonic overflight response data to the FAA and the International Civil Aviation Organization.
Peter has worked at NASA for over 39 years. During his career he has studied and led technology integration in practical designs for a variety of aircraft and has made contributions to all of NASA’s supersonics related programs in the past 30 years.
Peter is a licensed private pilot who has amassed nearly 30 seconds of supersonic flight time.
NVH Development in the Age of Electrification
Dr. Kiran Govindswamy holds the position of Senior Vice President at FEV North America. In this role, he is responsible for leading the engineering and development activities for the company’s drivetrain, e-mobility, and vehicle engineering business.
During Kiran’s more than 20-year career at FEV, he has held several positions in NVH, component engineering, and vehicle integration. He has been instrumental in expanding the company’s technical capabilities and expertise in the areas of vehicle and powertrain NVH, transmission, and e-axle development.
Kiran earned a bachelor’s degree in mechanical engineering from the College of Engineering Pune, India and a master’s degree and doctorate in engineering from the Pennsylvania State University. Kiran serves as a member of the SAE NVH Conference Committee. He is also a member of the advisory board for the CTI USA Symposium.