ansys.dyna.core.pre.dynamech#

Module for setting up explicit or implicit analysis.

Classes#

`AnalysisType`	Generic enumeration.
`DynaMech`	Defines a Mechanical analysis.
`Airbag`	Defines an airbag or control volume.

Module Contents#

class ansys.dyna.core.pre.dynamech.AnalysisType[source]#

Bases: ansys.dyna.core.pre.dynabase.Enum

Generic enumeration.

Derive from this class to define new enumerations.

EXPLICIT = 1[source]#

IMPLICIT = 2[source]#

NONE = 3[source]#

class ansys.dyna.core.pre.dynamech.DynaMech(analysis=AnalysisType.EXPLICIT)[source]#

Bases: ansys.dyna.core.pre.dynabase.DynaBase

Defines a Mechanical analysis.

casetype[source]#

analysis[source]#

create_control_output(npopt=0, neecho=0)[source]#

Set miscellaneous output parameters.

Parameters:

npoptint, optional

Print suppression during the input phase flag for the D3HSP file. The default is 0. Options are:

EQ.0: No suppression.
EQ.1: Nodal coordinates, element connectivities, rigid wall definitions, nodal SPCs, initial velocities, initial strains, adaptive constraints, and SPR2/SPR3 constraints are not printed.

neechoint, optional

Print suppression during the input phase flag for the echo file. The default is 0. Options are:

EQ.0: All data is printed.
EQ.1: Nodal printing is suppressed.
EQ.2: Element printing is suppressed.
EQ.3: Both nodal and element printing is suppressed.

Returns:

bool: True when successful, False when failed.

set_init_velocity(translational=Velocity(0, 0, 0), rotational=RotVelocity(0, 0, 0))[source]#

Define initial nodal point velocities using a nodal set ID.

Parameters:

nsidint: Nodal set ID.
translationalVelocity: Initial translational velocity in the x,y,z-direction.
rotationalRotVelocity: Initial rotational velocity about the x,y,z-axis.

Returns:

bool: True when successful, False when failed.

create_defineorientation(vid, iop, vector, node1, node2)[source]#

Define orientation vectors for discrete springs and dampers.

Parameters:

vidint

Orientation vector ID.

iopint

Options are:

EQ.0: Deflections/rotations are measured and forces/moments are applied along the following orientation vector.
EQ.1: Deflections/rotations are measured and forces/moments are applied along the axis between the two spring/damper nodes projected onto the plane normal to the following orientation vector.
EQ.2: Deflections/rotations are measured and forces/moments are applied along a vector defined by the following two nodes.
EQ.3: Deflections/rotations are measured and forces/moments are applied along the axis between the two spring/damper nodes projected onto the plane normal to the a vector defined by the following two nodes.

vectorlist [x,y,z]

x,y,z : x,y,z-value of the orientation vector.

node1int

Node 1 ID.

node2int

Node 2 ID.

Returns:

bool: True when successful, False when failed.

create_shellset(option, title, sid, eids)[source]#

Define a set of shell elements with optional identical or unique attributes.

Parameters:

optionstr: Available options. Choices are ,``LIST``, and GENERAL.
titlestr: Title for the shell set.
sidint: Set ID.
eidslist: List of shell element IDs.

Returns:

bool: True when successful, False when failed.

create_solidset(title, sid, ki)[source]#

Define a set of solid elements.

Parameters:

titlestr: Title for the set of solid elements.
sidint: Set ID.
kilist: Solid element IDs.

Returns:

bool: True when successful, False when failed.

create_section_solid(title, secid, elform)[source]#

Define section properties for solid continuum and fluid elements.

Parameters:

titlestr: Title for section solid.
secidint: Section ID. SECID is referenced on the \*PART card. A unique number must be specified.
elformint: Element formulation options.

Returns:

bool: True when successful, False when failed.

create_section_discrete(secid, dro=0, kd=0, v0=0, cl=0, fd=0, cdl=0, tdl=0)[source]#

Defined spring and damper elements for translation and rotation.

Parameters:

secidint

Section ID.

droint, optional

Displacement/rotation. The default is 0. Options are:

EQ.0: Material describes a translational spring/damper.
EQ.1: Material describes a torsional spring/damper.

kdfloat, optional

Dynamic magnification factor. The default is 0.

v0float, optional

Test velocity. The default is 0.

clfloat, optional

Clearance. The default is 0.

fdfloat, optional

Failure deflection. The default is 0.

cdlfloat, optional

Deflection limit in compression. The default is 0.

td1float, optional

Deflection limit in tension. The default is 0.

Returns:

bool: True when successful, False when failed.

create_hourglass(ghid, ihq, qm=0.1, q1=1.5, q2=0.06, qb=1e-09, qw=1e-09)[source]#

Define hourglass and bulk viscosity properties.

Parameters:

ghidint: Hourglass ID. A unique number or label must be specified.
ihqint: Hourglass control type.
qmfloat, optional: Hourglass coefficient. The default is 0.1.
q1float, optional: Quadratic bulk viscosity coefficient. The default is 1.5.
q2float, optional: Linear bulk viscosity coefficient. The default is 0.06.
qbfloat, optional: Hourglass coefficient for shell bending. The default is 1e-09.
qwfloat, optional: Hourglass coefficient for shell warping. The default is 1e-09.

Returns:

bool: True when successful, False when failed.

save_file(defaultsetting=1)[source]#

Save keyword files.

Returns:

bool: True when successful, False when failed.

class ansys.dyna.core.pre.dynamech.Airbag(set, heat_capacity_at_constant_volume=0, heat_capacity_at_constant_pressure=0, input_gas_temperature=0, input_mass_flow_rate=Curve(x=[], y=[]), shape_factor_for_exit_hole=0, ambient_pressure=0, ambient_density=0)[source]#