RANDPS

Bulk Data Entry Defines load set power spectral density factors for use in random analysis having the frequency dependent form S j k ( Ω ) = ( X + i Y ) G ( Ω ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaam4uamaaBa aaleaacaWGQbGaam4AaaqabaGcdaqadaqaaiabfM6axbGaayjkaiaa wMcaaiabg2da9maabmaabaGaamiwaiabgUcaRiaadMgacaWGzbaaca GLOaGaayzkaaGaam4ramaabmaabaGaeuyQdCfacaGLOaGaayzkaaaa aa@45F8@ .

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
RANDPS SID J K X Y TID

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
RANDPS 5 3 7 2.0 2.5 4

Definitions

Field Contents SI Unit Example
SID Random analysis set identification number.

(Integer > 0)

J Subcase identification number of excited load set.

(Integer > 0)

K Subcase identification number of applied load set.

(Integer > 0; K ≥ J)

X, Y Components of complex number.

(Real)

TID A TABRNDi entry identification number which defines G(F).
= 0
G(F) = 1.0

Integer ≥ 0

Comments

  1. If J = K, then Y must be 0.0.
  2. RANDPS Bulk Data Entries can be referenced either by:
    • The RANDOM Subcase or Case Control Entry.
    • A SET I/O Options Entry that is then referenced by a RANDOM Case Control Entry.
    • A SET Bulk Data Entry with TYPE=MODE that is then referenced by a RANDOM Case Control Entry.