loads Module

class pyNastran.bdf.cards.thermal.loads.QBDY1(sid, qflux, eids, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines a uniform heat flux into CHBDYj elements.

Eids()

classmethod _init_from_empty()

_properties = ['element_ids']

classmethod add_card(card, comment='')

Adds a QBDY1 card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

Cross links the card so referenced cards can be extracted directly

Parameters

modelBDF()

the BDF object

property element_ids

get_loads()

nQFluxTerms()

qflux = None

Heat flux into element (FLOAT)

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QBDY1'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.QBDY2(sid, eid, qfluxs, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines a uniform heat flux load for a boundary surface.

Eid()

classmethod _init_from_empty()

classmethod add_card(card, comment='')

Adds a QBDY2 card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

Cross links the card so referenced cards can be extracted directly

Parameters

modelBDF()

the BDF object

eid = None

Identification number of an CHBDYj element. (Integer > 0)

get_loads()

nQFluxTerms()

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QBDY2'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.QBDY3(sid, q0, cntrlnd, eids, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines a uniform heat flux load for a boundary surface.

Creates a QBDY3 card

Parameters

sidint

Load set identification number. (Integer > 0)

q0float; default=None

Magnitude of thermal flux vector into face

control_idint; default=0

Control point

eidsList[int] or THRU

Element identification number of a CHBDYE, CHBDYG, or CHBDYP entry

commentstr; default=’’

a comment for the card

Eids()

classmethod _init_from_empty()

_properties = ['element_ids']

classmethod add_card(card, comment='')

Adds a QBDY3 card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cntrlnd = None

Control point for thermal flux load. (Integer > 0; Default = 0)

cross_reference(model: BDF) → None

Cross links the card so referenced cards can be extracted directly

Parameters

modelBDF()

the BDF object

eids = None

CHBDYj element identification numbers

property element_ids

get_loads()

q0 = None

Heat flux into element

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QBDY3'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.QHBDY(sid, flag, q0, grids, af=None, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines a uniform heat flux into a set of grid points.

Creates a QHBDY card

Parameters

sidint

load id

flagstr

valid_flags = {POINT, LINE, REV, AREA3, AREA4, AREA6, AREA8}

q0float

Magnitude of thermal flux into face. Q0 is positive for heat into the surface

affloat; default=None

Area factor depends on type

gridsList[int]

Grid point identification of connected grid points

commentstr; default=’’

a comment for the card

classmethod _init_from_empty()

_properties = ['flag_to_nnodes']

classmethod add_card(card, comment='')

Adds a QHBDY card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

af = None

Area factor depends on type. (Real > 0.0 or blank)

cross_reference(model: BDF) → None

flag_to_nnodes = {'AREA3': (3, 3), 'AREA4': (4, 4), 'AREA6': (4, 6), 'AREA8': (5, 8), 'LINE': (2, 2), 'POINT': (1, 1), 'REV': (2, 2)}

get_loads()

grids = None

Grid point identification of connected grid points. (Integer > 0 or blank)

q0 = None

Magnitude of thermal flux into face. Q0 is positive for heat into the surface. (Real)

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QHBDY'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.QVECT(sid, q0, eids, t_source=None, ce=0, vector_tableds=None, control_id=0, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Thermal Vector Flux Load

Defines thermal vector flux from a distant source into a face of one or more CHBDYi boundary condition surface elements.

1	2	3	4	5	6	7	8	9
QVECT	SID	Q0	TSOUR	CE	E1/TID1	E2/TID2	E3/TID3	CNTRLND
	EID1	EID2	etc.

Creates a QVECT card

Parameters

sidint

Load set identification number. (Integer > 0)

q0float; default=None

Magnitude of thermal flux vector into face

t_sourcefloat; default=None

Temperature of the radiant source

ceint; default=0

Coordinate system identification number for thermal vector flux

vector_tabledsList[int/float, int/float, int/float]

vectorfloat; default=None

directional cosines in coordinate system CE) of the thermal vector flux None : [0.0, 0.0, 0.0]

tabledint

TABLEDi entry identification numbers defining the components as a function of time

control_idint; default=0

Control point

eidsList[int] or THRU

Element identification number of a CHBDYE, CHBDYG, or CHBDYP entry

commentstr; default=’’

a comment for the card

Eids()

classmethod _init_from_empty()

_properties = ['element_ids']

classmethod add_card(card, comment='')

Adds a QVECT card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

Cross links the card so referenced cards can be extracted directly

Parameters

modelBDF()

the BDF object

property element_ids

get_loads()

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QVECT'

uncross_reference() → None

Removes cross-reference links

validate()

card checking method that should be overwritten

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.QVOL(sid, qvol, control_point, elements, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines a rate of volumetric heat addition in a conduction element.

1	2	3	4	5	6	7	8	9
QVOL	SID	QVOL	CNTRLND	EID1	EID2	EID3	EID4	EID5
	EID6	etc.

Eids()

classmethod _init_from_empty()

_properties = ['element_ids']

classmethod add_card(card, comment='')

Adds a QVOL card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

Cross links the card so referenced cards can be extracted directly

Parameters

modelBDF()

the BDF object

property element_ids

get_loads()

raw_fields()

repr_fields()

Gets the fields in their simplified form

Returns

fieldsList[varies]

the fields that define the card

safe_cross_reference(model: BDF, xref_errors)

sid = None

Load set identification number. (Integer > 0)

type = 'QVOL'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.TEMP(sid, temperatures, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

Defines temperature at grid points for determination of thermal loading, temperature-dependent material properties, or stress recovery.

1	2	3	4	5	6	7	8
TEMP	SID	G1	T1	G2	T2	G3	T3
TEMP	3	94	316.2	49	219.8

Creates a TEMP card

Parameters

sidint

Load set identification number

temperaturesdict[nid]temperature

nidint

node id

temperaturefloat

the nodal temperature

commentstr; default=’’

a comment for the card

classmethod _init_from_empty()

add(temp_obj)

classmethod add_card(card, comment='')

Adds a TEMP card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

classmethod export_to_hdf5(h5_file, model, loads)

exports the loads in a vectorized way

get_loads()

raw_fields()

Writes the TEMP card

repr_fields()

Writes the TEMP card

safe_cross_reference(model: BDF, debug=True)

sid = None

Load set identification number. (Integer > 0)

temperatures = None

dictionary of temperatures where the key is the grid ID (Gi) and the value is the temperature (Ti)

type = 'TEMP'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.TEMPB3(sid, eid, t, tpy, tpz, tc, td, te, tf, eids, comment='')

Bases: pyNastran.bdf.cards.base_card.BaseCard

classmethod _init_from_empty()

classmethod add_card(card, icard=0, comment='')

Adds a TEMPD card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

icardint; default=0

sid to be parsed

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

get_loads()

raw_fields()

Writes the TEMP card

type = 'TEMPB3'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.TEMPD(sid, temperature, comment='')

Bases: pyNastran.bdf.cards.base_card.BaseCard

Defines a temperature value for all grid points of the structural model that have not been given a temperature on a TEMP entry

1	2	3	4	5	6	7	8	9
TEMPD	SID1	T1	SID2	T2	SID3	T3	SID4	T4

Creates a TEMPD card

Parameters

sidint

Load set identification number. (Integer > 0)

temperaturefloat

default temperature

commentstr; default=’’

a comment for the card

classmethod _init_from_empty()

add(tempd_obj)

classmethod add_card(card, icard=0, comment='')

Adds a TEMPD card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

icardint; default=0

sid to be parsed

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

raw_fields()

Writes the TEMPD card

safe_cross_reference(model: BDF, xref_errors)

type = 'TEMPD'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.TEMPP1(sid, eid, tbar, tprime, t_stress, comment='')

Bases: pyNastran.bdf.cards.base_card.BaseCard

1	2	3	4	5	6	7	8
TEMPP1	SID	EID1	TBAR	TPRIME	T1	T2
	EID2	EID3	EID4	EID5	EID6	EID7	etc.

TEMPP1	2	24	62.0	10.0	57.0	67.0
	26	21	19	30

Alternate Form +——–+——+——+——+——–+——+——+——+ | | EID2 | THRU | EIDi | EIDj | THRU | EIDk | | +——–+——+——+——+——–+——+——+——+ | | 1 | THRU | 10 | 30 | THRU | 61 | | +——–+——+——+——+——–+——+——+——+

classmethod _init_from_empty()

raw_fields()

Writes the TEMP card

type = 'TEMPP1'

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.TEMPRB(sid, ta, tb, tp1, tp2, tai, tbi, eids, comment='')

Bases: pyNastran.bdf.cards.thermal.loads.ThermalLoad

1	2	3	4	5	6	7	8
TEMPRB	SID	G1	T1	G2	T2	G3	T3

1	2	3	4	5	6	7	8	9
TEMPRB	SID	EID1	TA	TB	TP1A	TP1B	TP2A	TP2B
	TCA	TDA	TEA	TFA	TCB	TDB	TEB	TFB
	EID2	EID3	EID4	EID5	EID6	EID7	etc.
TEMPRB	200	1	68.0	23.0	0.0	28.0	2.5
	68.0	91.0	45.0	48.0	80.0	20.0
	9	10

Creates a TEMPRB card

Parameters

sidint

Load set identification number

commentstr; default=’’

a comment for the card

classmethod _init_from_empty()

classmethod add_card(card, comment='')

Adds a TEMPRB card from BDF.add_card(...)

Parameters

cardBDFCard()

a BDFCard object

commentstr; default=’’

a comment for the card

cross_reference(model: BDF) → None

get_loads()

raw_fields()

Writes the TEMPRB card

repr_fields()

Writes the TEMPRB card

safe_cross_reference(model: BDF, debug=True)

sid = None

Load set identification number. (Integer > 0)

type = 'TEMPRB'

uncross_reference() → None

Removes cross-reference links

write_card(size: int = 8, is_double: bool = False) → str

Writes the card with the specified width and precision

Parameters

sizeint (default=8)

size of the field; {8, 16}

is_doublebool (default=False)

is this card double precision

Returns

msgstr

the string representation of the card

class pyNastran.bdf.cards.thermal.loads.ThermalLoad

Bases: pyNastran.bdf.cards.thermal.thermal.ThermalCard