ansys.mapdl.core.Mapdl.vfill#

Mapdl.vfill(parr='', func='', con1='', con2='', con3='', con4='', con5='', con6='', con7='', con8='', con9='', con10='', **kwargs)#

Fills an array parameter.

Mechanical APDL Command: *VFILL

Parameters:

parrstr

The name of the resulting numeric array parameter vector. See starset for name restrictions.

funcstr

Fill function:

• DATA - Assign specified values CON1, CON2, etc. to successive array elements. Up to 10 assignments may be made at a time. Any CON values after a blank CON value are ignored.

• RAMP - Assign ramp function values: CON1 +((n-1)* CON2 ), where n is the loop number ( vlen ). To specify a constant function (no ramp), set CON2 to zero.

• RAND - Assign random number values based on a uniform distribution RAND( CON1, CON2 ), where:

  • CON1 is the lower bound (defaults to 0.0)

  • CON2 is the upper bound (defaults to 1.0)

• GDIS - Assign random sample of Gaussian distributions GDIS( CON1, CON2 ) where:

  • CON1 is the mean (defaults to 0.0)

  • CON2 is the standard deviation (defaults to 1.0)

• TRIA - Assigns random number values based on a triangular distribution TRIA( CON1, CON2, CON3 ) where:

  • CON1 is the lower bound (defaults to 0.0)

  • CON2 is the location of the peak value ( CON1 ≤ CON2 ≤ CON3 ; CON2 defaults to 0 if CON1 ≤ 0 ≤ CON3, CON1 if 0 ≤ CON1, or CON3 if CON3 ≤ 0)

  • CON3 is the upper bound (defaults to 1.0 + CON1 if CON1 ≥ 0 or 0.0 if CON1 ≤ 0)

• BETA - Assigns random number values based on a beta distribution BETA( CON1, CON2, CON3, CON4 ) where:

  • CON1 is the lower bound (defaults to 0.0)

  • CON2 is the upper bound (defaults to 1.0 + CON1 if CON1 ≥ 0 or 0.0 if CON1 ≤ 0)

  • CON3 and CON4 are the alpha and beta parameters, respectively, of the beta function. Alpha and beta must both be positive; they default to 1.0.

• GAMM - Assigns random number values based on a gamma distribution: GAMM( CON1, CON2, CON3 ) where:

  • CON1 is the lower bound (defaults to 0.0)

  • CON2 and CON3 are the alpha and beta parameters, respectively, of the gamma function. Alpha and beta must both be positive; they default to 1.0.

• RIGID - Generates the rigid body modes with respect to the reference point coordinates ( CON1, CON2, CON3 ). The dimensions of the array parameter ParR are (dim:sub:1,dim:sub:2 ) where dim:sub:1 is the maximum node number (including internal nodes but excluding orientation nodes ) multiplied by the number of degrees of freedom, and dim:sub:2 is the number of rigid body modes (which corresponds to the number of structural degrees of freedom).

• CLUSTER - Generates excitation frequencies with clustering option CLUSTER( CON1, CON2, CON3, CON4, %CON5% ) where:

  • CON1 is the lower end of the frequency range in Hz (0 < CON1 )

  • CON2 is the upper end of the frequency range in Hz ( CON1 < CON2 )

  • CON3 is the number of points on each side of the natural frequency (4 ≤ CON3 ≤ 20, defaults to 4)

  • CON4 is the constant damping ratio value or an array parameter (size NFR) specifying the damping ratios (if zero or blank, defaults to constant damping ratio of 0.005)

  • CON5 is an array parameter (size NFR) specifying the natural frequencies in Hz

  The dimension of the resulting array parameter ParR is less than 2+NFR2(2*

  CON3 +1) where NFR is the number of natural frequencies defined in CON5.

con1str

Constants used with above functions.

con2str

Constants used with above functions.

con3str

Constants used with above functions.

con4str

Constants used with above functions.

con5str

Constants used with above functions.

con6str

Constants used with above functions.

con7str

Constants used with above functions.

con8str

Constants used with above functions.

con9str

Constants used with above functions.

con10str

Constants used with above functions.

Notes

Warning

This function contains specificities regarding the argument definitions. Please refer to the command documentation for further explanations.

Argument Descriptions

• parr : str - The name of the resulting numeric array parameter vector. See starset for name restrictions.

• func : str - Fill function:

  • DATA - Assign specified values CON1, CON2, etc. to successive array elements. Up to 10 assignments may be made at a time. Any CON values after a blank CON value are ignored.

  • RAMP - Assign ramp function values: CON1 +((n-1)* CON2 ), where n is the loop number ( vlen ). To specify a constant function (no ramp), set CON2 to zero.

  • RAND - Assign random number values based on a uniform distribution RAND( CON1, CON2 ), where:

    • CON1 is the lower bound (defaults to 0.0)

    • CON2 is the upper bound (defaults to 1.0)

  • GDIS - Assign random sample of Gaussian distributions GDIS( CON1, CON2 ) where:

    • CON1 is the mean (defaults to 0.0)

    • CON2 is the standard deviation (defaults to 1.0)

  • TRIA - Assigns random number values based on a triangular distribution TRIA( CON1, CON2, CON3 ) where:

    • CON1 is the lower bound (defaults to 0.0)

    • CON2 is the location of the peak value ( CON1 ≤ CON2 ≤ CON3 ; CON2 defaults to 0 if CON1 ≤ 0 ≤ CON3, CON1 if 0 ≤ CON1, or CON3 if CON3 ≤ 0)

    • CON3 is the upper bound (defaults to 1.0 + CON1 if CON1 ≥ 0 or 0.0 if CON1 ≤ 0)

  • BETA - Assigns random number values based on a beta distribution BETA( CON1, CON2, CON3, CON4 ) where:

    • CON1 is the lower bound (defaults to 0.0)

    • CON2 is the upper bound (defaults to 1.0 + CON1 if CON1 ≥ 0 or 0.0 if CON1 ≤ 0)

    • CON3 and CON4 are the alpha and beta parameters, respectively, of the beta function. Alpha and beta must both be positive; they default to 1.0.

  • GAMM - Assigns random number values based on a gamma distribution: GAMM( CON1, CON2, CON3 ) where:

    • CON1 is the lower bound (defaults to 0.0)

    • CON2 and CON3 are the alpha and beta parameters, respectively, of the gamma function. Alpha and beta must both be positive; they default to 1.0.

  • RIGID - Generates the rigid body modes with respect to the reference point coordinates ( CON1, CON2, CON3 ). The dimensions of the array parameter ParR are (dim:sub:1,dim:sub:2 ) where dim:sub:1 is the maximum node number (including internal nodes but excluding orientation nodes ) multiplied by the number of degrees of freedom, and dim:sub:2 is the number of rigid body modes (which corresponds to the number of structural degrees of freedom).

  • CLUSTER - Generates excitation frequencies with clustering option CLUSTER( CON1, CON2, CON3, CON4, %CON5% ) where:

    • CON1 is the lower end of the frequency range in Hz (0 < CON1 )

    • CON2 is the upper end of the frequency range in Hz ( CON1 < CON2 )

    • CON3 is the number of points on each side of the natural frequency (4 ≤ CON3 ≤ 20, defaults to 4)

    • CON4 is the constant damping ratio value or an array parameter (size NFR) specifying the damping ratios (if zero or blank, defaults to constant damping ratio of 0.005)

    • CON5 is an array parameter (size NFR) specifying the natural frequencies in Hz

    The dimension of the resulting array parameter ParR is less than 2+NFR2(2*

    CON3 +1) where NFR is the number of natural frequencies defined in CON5.

• con1, con2, con3,..., con10 : str - Constants used with above functions.

Operates on input data and produces one output array parameter vector according to: ParR = f( CON1, CON2,…)

where the functions (f) are described above. Operations use successive array elements ( vlen, vmask ) with the default being all successive elements. For example, vfill ,A,RAMP,1,10 assigns A(1) = 1.0, A(2) = 11.0, A(3) = 21.0, etc. vfill,B(5,1),DATA,1.5,3.0 assigns B(5,1) = 1.5 and B(6,1) = 3.0. Absolute values and scale factors may be applied to the result parameter ( vabs, vfact ). Results may be cumulative ( vcum ). See the voper command for details.

This command is valid in any processor.