RADSND

Bulk Data Entry Defines a set of grid points where the sound will be calculated as well as the panels that are generating the sound.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
RADSND RSID MSET
"PANEL" PID PID PID etc.

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
RADSND 10 100
PANEL 101 103

Definitions

Field Contents SI Unit Example
RSID Radiated sound set identification number.

No default (Integer > 0)
MSET ID of a SET of field grids (microphone locations) at which sound levels will be calculated. The sound levels output at these grid points are due to panel vibrations (specified separately in the PANEL and PIDi fields. 4

No default (Integer > 0)
PANEL Flag indicating that the following panel ID's will contribute to the sound at the MSET grids. 4

No default (Character)
PIDi Panel identification number of the PANELG Data Entry of type "SOUND" data.

No default (Integer > 0)

Comments

  1. At least the first panel ID is required.
  2. Multiple continuations or multiple RADSND with the same SID are allowed if more than 7 SOUND panels need to be defined.
  3. The RADSND Bulk Data Entry is referenced by the RADSND command in the Subcase Information section of the input data.
  4. The MSET and PIDi fields are used to specify the microphone locations (receiving grids) and the vibrating panels (source grids), respectively.
    RADSND Data Entry Field
    Description
    MSET
    References microphone grid sets (receiving grids)
    Outputs are generally calculated at these locations
    PANEL, PIDi
    Reference vibrating panel ID's (source grids)
    Outputs can also be requested at these locations
  5. Acoustic pressure (SPL) output from radiated sound analysis (via the RADSND card) can be defined as a response (via RTYPE = FRPRES) in topography, topology, and free shape optimization.