/DVPREL1

Optimization Keyword Linearly relates a design variable to an analysis model property.

(1)
P i =C0+ ∑ i ( COE F i ⋅DVI D i ) MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamiuamaaBa aaleaacaWGPbaabeaakiabg2da9iaadoeacaaIWaGaey4kaSYaaabu aeaadaqadaqaaiaadoeacaWGpbGaamyraiaadAeadaWgaaWcbaGaam yAaaqabaGccqGHflY1caWGebGaamOvaiaadMeacaWGebWaaSbaaSqa aiaadMgaaeqaaaGccaGLOaGaayzkaaaaleaacaWGPbaabeqdcqGHri s5aaaa@4AF2@

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/DVPREL1/dvp_ID
title
prop_typ prop_ID prop_fid C0          
DVID1 COEF1              
DVID2 COEF2              
etc etc              
DVIDN COEFN              

Definitions

Field Contents SI Unit Example
dvpl_ID Identification number.

(Integer > 0)

  
title Title.

(Character, maximum 100 characters)

  
prop_typ Property type. The type is specified immediately after the corresponding /PROP, as: 1
= 1
/PROP/TYPE1 (SHELL)
= 2
/PROP/TYPE2 (TRUSS)
= 3
/PROP/TYPE3 (BEAM)
= 11
/PROP/TYPE11 (SH_SANDW)

(Integer ≥ 0)

  
prop_ID Property identifier (/PROP/...).

(Integer > 0)

  
prop_fid Property field identifier to be related with design variable. Depending on various property types (prop_typ), the available options are different. 1

(Integer > 0)

  
C0 Constant in the equation that defines the relationship between the design variable and the property.

Default = 0.0 (Real)

  
DVIDi Design variable identifier (/DESVAR) that is related to the property.

No default (Integer > 0)

  
COEFi Coefficient in the equation that defines the relationship between the design variable and the property.

Default = 1.0 (Real)

  

Example

/DVPREL1/1
related design variable
### Related design variable to design variable identifier 1 (defined in /DEVSVAR) is thickness of shell property ID 2000329 (which defined with /PROP/SHELL)
### prop_typ=1: property type is /PROP/SHELL
### prop_ID=2000329 : property identifier is 2000329
### prop_fid=1: Thickness due to prop_typ=1
### DVID1=1: Design variable identifier (/DESVAR) is 1 
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
# prop_typ   prop_ID  prop_fid                  C0
         1   2000329         1                 0.0
#    DVID1               COEF1
         1                 1.0   
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Comments

  1. The specific property field ID's that are related to the design variables are listed based on the following property types:
    prop_type = 1 (/PROP/SHELL):
    prop_fid
    1 = Thick
    prop_type = 2 (/PROP/TRUSS):
    prop_fid
    1 = Area
    prop_type = 3 (/PROP/BEAM):
    prop_fid
    1 = Area

    2 = Iyy

    3 = Izz

    4 = Ixx
    prop_type = 11 (/PROP/SH_SANDW):
    prop_fid
    > 0 = Ply Thickness

    < 0 = Ply Orientation Angle
  2. This card is represented as an optimization design variable in HyperMesh and HyperCrash.