/IMPDISP/FGEO

Block Format Keyword Describes the final position of a set of N nodes, input by coordinates.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/IMPDISP/FGEO/impdisp_ID/unit_ID
impdisp_title
fct_ID part_ID   sens_ID            
Ascale     Tstart Tstop    
node_ID1 X1 Y1 Z1      
etc            
node_IDN XN YN ZN      

Definition

Field Contents SI Unit Example
impdisp_ID Imposed displacement block identifier.

(Integer, maximum 10 digits)

 
unit_ID Unit Identifier.

(Integer, maximum 10 digits)

 
impdisp_title Final geometry block title.

(Character, maximum 100 characters)

 
fct_ID Time function identifier.

(Integer)

 
part_ID Spring part identifier. 5

(Integer)

 
sens_ID Sensor identifier.

(Integer)

 
Ascale Abscissa scale factor for fct_ID.

Default = 1.0 (Real)

[ s ]
Tstart Start time.

(Real)

[ s ]
Tstop Stop time.

Default = 1030 (Real)

[ s ]
node_IDi Node identifier.

(Integer)

 
XN X coordinate.

(Real)

[ m ]
YN Y coordinate.

(Real)

[ m ]
ZN Z coordinate.

(Real)

[ m ]

Comments

  1. A displacement is imposed to node_IDN from its initial position provided in /NODE, to its final position (XN, YN, and ZN).
  2. fct_ID is a scale factor on the imposed displacement, it should vary between 0 and 1.
  3. Abscissa scale factor, Ascale is used to transform the function of time, as:(1)
    F ( t ' ) = f T ( t A s c a l e ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 qaciGGgbWaaeWaa8aabaWdbiaadshapaWaaWbaaSqabeaapeGaai4j aaaaaOGaayjkaiaawMcaaiabg2da9iGacAgadaWgaaWcbaGaamivaa qabaGcdaqadaWdaeaapeWaaSaaa8aabaWdbiaadshaa8aabaWdbiaa dgeacaWGZbGaam4yaiaadggacaWGSbGaamyzaaaaaiaawIcacaGLPa aaaaa@45DC@

    Where, f T MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKf MBHbqefqvATv2CG4uz3bIuV1wyUbqedmvETj2BSbqefm0B1jxALjhi ov2DaebbnrfifHhDYfgasaacH8akY=xipgYlh9vqqj=hEeei0xXdbb a9frFf0=yqFf0dbba91qpepeI8k8fiI+fsY=rqaqpepae9pg0Firpe pesP0xe9Fve9Fve9qapdbaGaaiGadiWaamaaceGaaqaacaqbaaGcba GaciOzamaaBaaaleaacaWGubaabeaaaaa@3BC7@ is the function of fct_IDT.

  4. After Tstop, the nodes move freely.
  5. Initial node position N1 and final node position N2 can be defined as a spring N1N2 with zero stiffness. The spring part_ID is optional and can be used to simplify the input since a pre-processor can easily generate springs between an initial position and a final one.