Allowed Optimization Strategy for Design Responses

The table lists the properties of each variable type and which optimization strategy could be applied to which variable.

For more information, see OPTIMIZE item STRATEGY. The explanations of the used abbreviations are listed below in the table.

Variable Type

Load case

dependent

Selection

area

Usable as

OBJ_FUNC

Usable as

CONSTRAINT

Solver sensitivities

available for

Description

BEAD_HEIGHT

N

BEAD_C

Height of the bead.

CENTER_GRAVITY_X

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Center of gravity for the x-direction.

CENTER_GRAVITY_Y

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Center of gravity for the y-direction.

CENTER_GRAVITY_Z

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Center of gravity for the z-direction.

DAMAGE

N

SHAPE_C

Damage value from durability analysis.

DAMAGE_LC

X

N

SHAPE_C

Damage value from durability analysis with load case information.

NOTE: Must use ONF 601.

DENSITY_MEASURE

E

TOPO_S

TOPO_S

Measurement of the number of intermediate densities.

DISP_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal displacement.

DISP_X

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal displacement in x-direction for the global coordinate system or in a user-defined coordinate system.

DISP_X_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal displacement in x-direction for the global coordinate system or in a user-defined coordinate system.

DISP_Y

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal displacement in y-direction for the global coordinate system or in a user-defined coordinate system.

DISP_Y_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal displacement in y-direction for the global coordinate system or in a user-defined coordinate system.

DISP_Z

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal displacement in z-direction for the global coordinate system or in a user-defined coordinate system.

DISP_Z_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal displacement in z-direction for the global coordinate system or in a user-defined coordinate system.

DYN_FREQ

X

S

BEAD_C

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Eigenfrequency from modal analysis.

DYN_FREQ_KREISSEL

X

S

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_S

Abaqus

Eigenfrequency calculated with Kreisselmeier-Steinhauser formula. In terms of Abaqus sensitivities, the design response is replaced by a KSO response.

EMAG_SENSITIVITY_ELEMENT

S

TOPO_S

TOPO_S

CST

Element-based EM design responses. Sensitivity information has to be provided by the solver which also defines the type of the response.

EMAG_SENSITIVITY_NODE

S

SHAPE_S

SHAPE_S

CST

Node-based EM design responses. Sensitivity information has to be provided by the solver which also defines the type of the response.

ENERGY_STIFF_MEASURE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Energy stiffness measure. For Bead and Shape, available only with Abaqus sensitivities.

ENERGY_THERMAL_MEASURE

TOPO_S

TOPO_S

Energy thermal measure

FS_ACCEL_X

X

N

SIZE

SIZE

Acceleration in x-direction for frequency response.

FS_ACCEL_Y

X

N

SIZE

SIZE

Acceleration in y-direction for frequency response.

FS_ACCEL_Z

X

N

SIZE

SIZE

Acceleration in z-direction for frequency response.

FS_COMP

X

E

SIZE

SIZE

Dynamic compliance for frequency response.

FS_DBA_PRESSURE

X

N

SIZE

SIZE

Sound Pressure Level [dBA].

FS_DB_PRESSURE

X

N

SIZE

SIZE

Sound Pressure Level [dB].

FS_DISP_ABS

X

N

SIZE

SIZE

Absolute amplitude for frequency response.

FS_DISP_X_ABS

X

N

SIZE

SIZE

Amplitude in x-direction for frequency response.

FS_DISP_Y_ABS

X

N

SIZE

SIZE

Amplitude in z-direction for frequency response.

FS_DISP_Z_ABS

X

N

SIZE

SIZE

Amplitude in z-direction for frequency response.

FS_PHASE_X

X

N

SIZE

SIZE

Phase in x-direction for frequency response.

FS_PHASE_Y

X

N

SIZE

SIZE

Phase in y-direction for frequency response.

FS_PHASE_Z

X

N

SIZE

SIZE

Phase in z-direction for frequency response.

FS_PRESSURE

X

N

SIZE

SIZE

Instantaneous Sound Pressure [Pa].

FS_RMS_PRESSURE

X

N

SIZE

SIZE

Effective Sound Pressure(RMS)[Pa].

FS_VELOCITY_X

X

N

SIZE

SIZE

Velocity in x-direction for frequency response.

FS_VELOCITY_Y

X

N

SIZE

SIZE

Velocity in y-direction for frequency response.

FS_VELOCITY_Z

X

N

SIZE

SIZE

Velocity in z-direction for frequency response.

INERTIA_XX

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around x-x direction.

INERTIA_XY

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around x-y direction.

INERTIA_XZ

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around x-z direction.

INERTIA_YY

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around y-y direction.

INERTIA_YZ

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around y-z direction.

INERTIA_ZZ

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Moment of inertia around z-z direction.

INTERNAL_FORCE_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal force.

INTERNAL_FORCE_X

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal force in x-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_FORCE_X_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal force in x-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_FORCE_Y

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal force in y-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_FORCE_Y_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal force in y-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_FORCE_Z

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal force in z-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_FORCE_Z_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal force in z-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_HFLUX

X

NE

TOPO_S

TOPO_S

Internal Flux.

INTERNAL_MOMENT_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal moment.

INTERNAL_MOMENT_X

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal moment around x-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_MOMENT_X_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal moment around x-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_MOMENT_Y

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal moment around y-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_MOMENT_Y_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal moment around y-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_MOMENT_Z

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal internal moment around z-direction for global coordinate system or in a user-defined coordinate system.

INTERNAL_MOMENT_Z_ABS

X

NE

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal internal moment around z-direction for global coordinate system or in a user-defined coordinate system.

PEMAG

X

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Plastic strain magnitude. For most materials and only proportional loading, PEMAG is equal to PEEQ. Only available with Abaqus sensitivities.

REACTION_FORCE_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction force.

REACTION_FORCE_X

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction force in x-direction for global coordinate system or in a user-defined coordinate system.

REACTION_FORCE_X_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction force in x-direction for global coordinate system or in a user-defined coordinate system.

REACTION_FORCE_Y

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction force in y-direction for global coordinate system or in a user-defined coordinate system.

REACTION_FORCE_Y_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction force in y-direction for global coordinate system or in a user-defined coordinate system.

REACTION_FORCE_Z

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction force in z-direction for global coordinate system or in a user-defined coordinate system.

REACTION_FORCE_Z_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction force in z-direction for global coordinate system or in a user-defined coordinate system.

REACTION_HFLUX

X

N

TOPO_S

TOPO_S

Reaction Flux.

REACTION_MOMENT_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction moment.

REACTION_MOMENT_X

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction moment around x-direction for global coordinate system or in a user-defined coordinate system.

REACTION_MOMENT_X_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction moment around x-direction for global coordinate system or in a user-defined coordinate system.

REACTION_MOMENT_Y

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction moment around y-direction for global coordinate system or in a user-defined coordinate system.

REACTION_MOMENT_Y_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction moment around y-direction for global coordinate system or in a user-defined coordinate system.

REACTION_MOMENT_Z

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal reaction moment around z-direction for global coordinate system or in a user-defined coordinate system.

REACTION_MOMENT_Z_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal reaction moment around z-direction for global coordinate system or in a user-defined coordinate system.

ROT_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute rotation.

ROT_X

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal rotation around x-axis for global coordinate system or in a user-defined coordinate system.

ROT_X_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal rotation around x-axis for global coordinate system or in a user-defined coordinate system.

ROT_Y

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal rotation around y-axis for global coordinate system or in a user-defined coordinate system.

ROT_Y_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal rotation around y-axis for global coordinate system or in a user-defined coordinate system.

ROT_Z

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Nodal rotation around z-axis for global coordinate system or in a user-defined coordinate system.

ROT_Z_ABS

X

N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Absolute nodal rotation around z-axis for global coordinate system or in a user-defined coordinate system.

SIG_1

X

E/N

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Maximum principal stress.

SIG_2

X

E/N

SHAPE_C

2nd principal stress.

SIG_3

X

E/N

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Minimum principal stress.

SIG_11

X

E/N

SHAPE_C

11-component of stress tensor.

SIG_22

X

E/N

SHAPE_C

22-component of stress tensor.

SIG_33

X

E/N

SHAPE_C

33-component of stress tensor.

SIG_12

X

E/N

SHAPE_C

12-component of stress tensor.

SIG_23

X

E/N

SHAPE_C

23-component of stress tensor.

SIG_13

X

E/N

SHAPE_C

13-component of stress tensor.

SIG_ABS_123

X

E/N

SHAPE_C

Maximum of the absolute value of the principal stresses.

SIG_ABS_3

X

E/N

SHAPE_C

Absolute value of the minimum principal stress.

SIG_BELTRAMI

X

E/N

SHAPE_C

Beltrami stress hypothesis.

SIG_CONTACT_PRESSURE

X

N

SHAPE_C

Contact stress pressure.

SIG_CONTACT_SHEAR

X

N

SHAPE_C

Total shear contact stress.

SIG_CONTACT_SHEAR_X

X

N

SHAPE_C

Shear X Contact stress.

SIG_CONTACT_SHEAR_Y

X

N

SHAPE_C

Shear Y Contact stress.

SIG_CONTACT_TOTAL

X

N

SHAPE_C

Total Contact stress.

SIG_DRUCKER_PRAGER

X

E/N

SHAPE_C

Drucker-Prager stress hypothesis.

SIG_GALILEI

X

E/N

SHAPE_C

Galilei stress hypothesis.

SIG_GLINKA_EEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Galilei formulation for equivalent stress using the plastic correction factor.

SIG_GLINKA_PEEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Glinka formulation for equivalent plastic strain using the plastic correction factor.

SIG_GLINKA_SEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Glinka formulation for equivalent stress using the plastic correction factor.

SIG_KUHN

X

E/N

SHAPE_C

Kuhn stress hypothesis.

SIG_MARIOTTE

X

E/N

SHAPE_C

Mariotte stress hypothesis.

SIG_MISES

X

E/N

BEAD_S

SHAPE_C

SHAPE_S

BEAD_S

SHAPE_C

SHAPE_S

Von Mises stress hypothesis.

For SHAPE_S and BEAD_S, the sensitivities for optimization are calculated based on SIG_SENS_MISES.

SIG_NEUBER_EEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Neuber formulation for equivalent strain using the plastic correction factor.

SIG_NEUBER_PEEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Neuber formulation for equivalent plastic strain using the plastic correction factor.

SIG_NEUBER_SEQ

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Neuber formulation for equivalent stress using the plastic correction factor.

SIG_SANDEL

X

E/N

SHAPE_C

Sandel stress hypothesis.

SIG_SAUTER

X

E/N

SHAPE_C

Sauter stress hypothesis.

SIG_SENS_MISES

(SIG_TOPO_MISES)

X

E

BEAD_S

TOPO_S

SIZE

SHAPE_S

BEAD_S

TOPO_S

SIZE

SHAPE_S

Abaqus

For topology optimization: scaled centroidal von Mises stress.

The design response type SIG_TOPO_MISES is equivalent to SIG_SENS_MISES. SIG_TOPO_MISES should not be used in the future.

SIG_SIGNED_MISES

X

E/N

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

Signed von Mises stress failure criteria.

SIG_TRESCA

X

E/N

SHAPE_C

Tresca stress hypothesis.

STRAIN_ELASTIC

X

N

SHAPE_C

Elastic Strain. Only Abaqus and ANSYS® and only nonlinear analysis.

STRAIN_ENERGY

X

E

BEAD_C

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_C

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Strain energy. All required elements need to be taken into account.

STRAIN_ENERGY_DENS

X

N

SHAPE_C

Strain energy density.

STRAIN_PLASTIC

X

N

SHAPE_C

Plastic Strain. Only Abaqus and ANSYS® and only nonlinear analysis.

STRAIN_TOTAL

X

N

SHAPE_C

Total Strain (elastic + plastic). Only Abaqus and ANSYS®.

TEMPERATURE

X

N

TOPO_S

TOPO_S

Temperature.

USER_DRESP

X

E

BEAD_S

SHAPE_S

SIZE

TOPO_S

BEAD_S

SHAPE_S

SIZE

TOPO_S

Abaqus

User Subroutine Design Responses.

VOLUME

E

SHAPE_C

SHAPE_S

SIZE

TOPO_C

TOPO_S

SHAPE_C

SHAPE_S

SIZE

TOPO_C

TOPO_S

Volume of element.

WEIGHT

E

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_C

TOPO_S

BEAD_S

SHAPE_C

SHAPE_S

SIZE

TOPO_S

Weight of element.

Abbreviations

E

= Element-based value

N

= Node-based value

S

= Scalar value

NE

= Node with additional element information

BEAD_C

= BEAD_CONTROLLER

BEAD_S

= BEAD_SENSITIVITY

SHAPE_C

= SHAPE_CONTROLLER

SHAPE_S

= SHAPE_SENSITIVITY

SIZE

= SIZING_SENSITIVITY

TOPO_C

= TOPO_CONTROLLER

TOPO_S

= TOPO_SENSITIVITY