University of Minnesota
Aerospace Engineering and Mechanics
Winter 1997 Seminar Series


Acoustic Testing of Model Turbofan Engine Exhaust Systems


Dr. Dean Long

Aero Systems Engineering, Inc.



Abstract

The development of current generation commercial turbofan aircraft engines involves extensive subscale testing to optimize performance parameters prior to entering flight tests where design changes are far more expensive to implement. With the restrictions on noise emissions becoming more stringent, a greater emphasis is being placed on acoustic tests to complement the aerodynamic and thrust performance tests. To support this need Aero Systems Engineering Co. has recently added acoustic measurement capability to one of the static thrust stands. This upgrade is discussed along with the general features of the test laboratory.

Friday, January 31, 1997
225 Akerman Hall, 2:30 - 3:30 p.m.


Refreshments served after each seminar in 227 AKERMAN HALL .
Disability accommodations provided upon request.
Contact Leslie Petrus : Secretarial Assistant.

petrus@aem.umn.edu (612) 625-8000.