Benchmark
Problems
Benchmark Problem A0-2F
-Properties-
|
category
|
type
|
index
|
domain
|
object
|
note
|
A. exterior
|
0. basic
|
A0-2F
|
frequency
|
cube
|
radiation
|
Geometry: Cubic surface (1 m * 1 m * 1 m) in the free field.
Boundary condition:
All faces are rigid boundaries. A piston source (0.2 m * 0.2 m) (S) is located in the center of one face, assuming its stationary vibration with acceleration amplitude 1 m/s2.
Fig. A0-2F-1: Geometry of problem A0-2F (unit:
m).
-Task A-
Directivity:
Sound pressure amplitude [Pa] at 91 points (R1), 2 m away from the cube's center on the plane x = 0, located at 1 deg intervals (theta = 0, ..., 90 deg). At the octave-band mid-frequencies (f = 31.5, 63, 125, 250, 500, 1k, 2k, 4k Hz).
Dataform:
d-a0-2fa.xls
-Task B-
Frequency response:
Sound pressure amplitude [Pa] at 3 points (0, 0, 1) (R2), (0, 1, 0) (R3) and (0, 0, 10) (R4). At the frequencies with 1 Hz intervals from 20 Hz to 4 kHz; or with 50 Hz intervals from 50 Hz to 4 kHz.
Dataform:
d-a0-2fb.xls