Acoustical Analysis of a Test Horn

Young In Moon‏

جنوری 1988 · Flight Dynamics Laboratory, Air Force Wright Aerodynamics Laboratory, Air Force Systems Command, United States Air Force

اس ای بک کے بارے میں

The natural frequencies and mode shapes for three models of a small test horn are determined using the 3-D acoustic finite element computer program COMIC (COMplex AcoustIC Pressure Analysis). The mode shapes are presented graphically and nodal planes are identified. Placing a wall of blocks and a missile inside the model does not make any significant change in natural frequencies, although the nodal planes have moved in the direction of the added elements.