frequencies

Unless otherwise specified, data names are accessible in level 3 only.

a
The material parameter a in S-N fatigue equation.
Type: double array
aa
The coefficiens to define the acceleration spectrum.
Type: double
ab
The coefficient to define the acceleration spectrum.
Type: double
absorb
The absorption coefficient.
Type: double
ac
The coefficient to define the acceleration spectrum.
Type: double
activesuppressed
Returns non-zero if the entity is set inactive, 0 otherwise.
Type: integer
ad
The coefficient to define the acceleration spectrum.
Type: double
af
The coefficient to define the acceleration spectrum.
Type: double
amin
The minimum acceleration.
Type: double
angle
The connection angle of the plate.
Type: double array
attributesmax
The number of attributes owned by this entity.
Type: unsigned integer
b
The material parameter b in S-N fatigue equation.
Type: double array
beam_area
The beam area.
Type: double
beam_dampb
The damping factor for a bending wave.
Type: double
beam_dampl
The damping factor for a longitudinal wave.
Type: double
beam_damps
The damping factor for a shear wave.
Type: double
beam_dampt
The damping factor for a torsional wave.
Type: double
beam_lc1
The load curve for damping factor for a bending wave.
Type: entity
beam_lc2
The load curve for damping factor for a longitudinal wave.
Type: entity
beam_lc3
The load curve for damping factor for a shear wave.
Type: entity
beam_lc4
The load curve for damping factor for a torsional wave.
Type: entity
beam_length
The beam length.
Type: double
beamsetid
The ID of the beam set.
Type: entity array
bemoptions
The BEM options.
0 - NONE
1 - HALF_SPACE
2 - PANEL_CONTRIBUTION
3 - ATV
4 - MATV
Type: integer
bemtyp
The type of input boundary values in BEM analysis.
0 - Boundary velocity will be processed in BEM analysis
1 - Boundary acceleration will be processed in BEM analysis
2 - Pressure is prescribed and the real and imaginary parts are given by LC1 and LC2
3 - Normal velocity is prescribed and the real and imaginary parts are given by LC1 and LC2
4 - Impedance is prescribed and the real and imaginary parts are given by LC1 and LC2
Type: integer array
bemtyp_curve
The type of input boundary values in BEM analysis.
Type: entity array
bemtyp_option
The flag specifying BEMTYP options.
Type: Boolean array
bwave
The bending wave.
Type: double
c
The speed of sound of the fluid.
Type: double
c_freq
The speed of sound of the fluid.
Type: entity
c_negflag
The flag specifying C options.
Type: Boolean
cavity_area
The cavity area.
Type: double
cavity_dampb
The damping factor for a bending wave.
Type: double
cavity_height
The height of the cavity.
Type: double
cavity_lc1
The load curve for damping factor for a bending wave.
Type: entity
cavity_length
The length of the cavity.
Type: double
cavity_perim
The length of the cavity.
Type: double
cavity_volume
The volume of the cavity.
Type: double
cavity_width
The width of the cavity.
Type: double
center
The flag for defining the center point for the sphere.
1 - Mass center of the original structure
2 - Geometry center of the original structure
3 - Defined by (x, y, z)
Type: integer
center_point_plate
The coordinates of the center for plate.
Type: triple double
center_point_sphere
The coordinates of the center for sphere.
Type: triple double
cid
The ID of the vector defining the load direction for nodal force or base excitation.
Type: entity array
color
The 1-64 color of the entity.
Type: integer
color_rgb
The RGB color of the entity.
Type: string
config
101 - LS-DYNA FREQUENCY_DOMAIN_ACCELERATION_UNIT
102 - LS-DYNA FREQUENCY_DOMAIN_ACOUSTIC_BEM
103 - LS-DYNA FREQUENCY_DOMAIN_ACOUSTIC_FEM
104 - LS-DYNA FREQUENCY_DOMAIN_ACOUSTIC_FRINGE_PLOT
105 - LS-DYNA FREQUENCY_DOMAIN_ACOUSTIC_INCIDENT_WAVE
106 - LS-DYNA FREQUENCY_DOMAIN_ACOUSTIC_SOUND_SPEED
107 - LS-DYNA FREQUENCY_DOMAIN_FRF
108 - LS-DYNA FREQUENCY_DOMAIN_MODE
109 - LS-DYNA FREQUENCY_DOMAIN_PATH
110 - LS-DYNA FREQUENCY_DOMAIN_RANDOM_VIBRATION
111 - LS-DYNA FREQUENCY_DOMAIN_RESPONSE_SPECTRUM
112 - LS-DYNA FREQUENCY_DOMAIN_SSD
113 - LS-DYNA FREQUENCY_DOMAIN_LOCAL
114 - LS-DYNA FREQUENCY_DOMAIN_SEA_CONNECTION
115 - LS-DYNA FREQUENCY_DOMAIN_SEA_INPUT
116 - LS-DYNA FREQUENCY_DOMAIN_SEA_SUBSYSTEM
Type: unsigned integer
ctype
The type of connection.
1: Plate-plate
2: Plate-cavity
3: Plate-cavity-cavity
4: Plate-beam
Type: integer
dampf
The modal damping coefficient.
Type: double
dba
The flag for writing out weighted SPL files with different weighting options.
0 - No writing out weighted SPL files
1 - Write out Press_dB(A) by using A-weighting
2 - Write out Press_dB(B) by using B-weighting
3 - Write out Press_dB(C) by using C-weighting
4 - Write out Press_dB(D) by using D-weighting
Type: integer
ddam
The DDAM option.
0: NONE
1 - Write out Press_dB(A) by using A-weighting
2 - Write out Press_dB(B) by using B-weighting
3 - Write out Press_dB(C) by using C-weighting
4 - Write out Press_dB(D) by using D-weighting
Type: integer
decay
The decay ratio at the end of the capture duration.
Type: double
density
The sphere mesh density parameter.
Type: integer
dmpflg
The damping flag.
0: Use modal damping coefficient, defined by DAMPF, or LCDAM, or Rayleigh damping defined by DMPMAS and DMPSTF.
1: Use damping defined by *DAMPING_PART_MASS and *DAMPING_PART_STIFFNESS
Type: integer
dmpmas
The mass proportional damping constant Alpha in Rayleigh damping.
Type: double
dmpstf
The stiffness proportional damping constant Beta in Rayleigh damping.
Type: double
dmptyp
The type of damping.
0 - Modal damping
1 - Broadband damping
Type: integer
dof
The applicable degrees-of-freedom.
0 - Determined by steady state dynamics
1 - X-translational degree-of-freedom
2 - Y-translational degree-of-freedom
3 - Z-translational degree-of-freedom
4 - Translational motion in direction given by VID
5 - Normal direction of the element or segment
Type: integer
dof1
The applicable degrees-of-freedom for excitation input.
0 - Translational movement in direction given by vector VID1
1 - X-translational degree-of-freedom, or X-rotational degree of freedom
2 - Y-translational degree-of-freedom, or Y-rotational degree of freedom
3 - Z-translational degree-of-freedom, or Z-rotational degree of freedom
Type: integer
dof2
The applicable degrees-of-freedom for response output.
0 - Direction given by vector VID2
1 - X-translational degree-of-freedom
2 - Y-translational degree-of-freedom
3 - Z-translational degree-of-freedom
4 - X, Y and Z-translational degrees-of-freedom
5 - Y-rotational degree-of-freedom
6 - Z-rotational degree-of-freedom
7 - X,Y and Z-translational degrees-of-freedom
8 - X,Y and Z-rotational degrees-of-freedom
Type: integer
dskip
The threshold load projection ratio.
Type: double
dtout
The time interval between writing velocity or acceleration, and pressure at boundary elements in the binary file, to be proceeded at the end of simulation.
Type: double
e
The young's modulus of subsystem.
Type: double
effmas
The minimum percentage requirement of total modal mass.
Type: double
eigenvalue
The Eigenvalue option.
0 - None
1 - Eigenvalue
Type: integer
erpref
The ERP reference value.
Type: double
erprlf
The ERP radiation loss factor.
Type: double
exclude
The EXCLUDE option.
0 - NONE
1 - EXCLUDE
Type: double
f_begs
The beginning frequency for using this database.
Type: double array
f_ends
The ending frequency for using this database.
Type: double array
fatigue
The FATIGUE option.
0: NONE
1: FATIGUE
Type: double array
fbeg
The starting frequency.
Type: double
fend
The ending frequency.
Type: double
fftwin
The FFT windows.
0 - Rectangular window
1 - Hanning window
2 - Hamming window
3 - Blackman window
4 - Raised cosine window
5 - Exponential window
Type: double
filename
The path and name of the file which contains model information.
Type: string
filenames
The path and name of the database which contains model information.
For fatigue information, the path and name of existing binary database.
Type: string array
fmax
The maximum value of output frequencies or maximum frequency for FRF/SEA output.
Type: double
fmin
The minimum value of output frequencies or minimum frequency for FRF output.
Type: double
fnmax
The optional maximum natural frequency employed in FRF computation or modal superposition method.
Type: double
fnmin
The minimum natural frequency in modal superposition method.
Type: double
fnmin
The fringe plot options.
1 - PART
2 - PART_SET
3 - NODE_SET
4 - SPHERE
5 - PLATE
Type: integer
fspace
The frequency spacing option for FRF output.
0 - Linear
1 - Logarithmic
2 - Biased
Type: integer
ibdim
The inner iteration limit in GMRES iterative solver.
Type: integer
ibeam
The flag for plate connected to plate.
0 - Plate-plate connection
1 - Plate-plate-beam connection
Type: integer
icoarse
The option for PSD curve coarsening.
0 - No coarsening, use original data (default)
1 - Coarsening by keeping only peaks and troughs
2 - Coarsening by removing intermediate points with slope change percentage less than prescribed tolerance
Type: integer
iedge
The free edge and multi-connection constraints option.
0 - Free edge and multi-connection constraints not considered
1 - Free edge and multi-connection constraints considered
2 - Only free edge constraints are considered
3 - Only multi-connection constraints are considered
Type: integer
id
The ID of the entity.
Type: unsigned integer
include
The ID of the include file the entity is organized in.
Type: entity
includeid
The ID of the include file the entity is organized in.
Type: unsigned integer
inflag
The frequency interpolation option.
0 - Logarithmic interpolation
1 - Semi-logarithmic interpolation
2 - Linear interpolation
Type: integer array
inftg
The flag for including initial damage ratio.
Type: integer
internalid
The ID of the entity.
Type: unsigned integer
internalname
The internal name of the entity.
Type: string
ipanelu
The number of strips in U direction.
Type: integer
ipanelv
The number of strips in V direction.
Type: integer
The flag for output files.
0 - Press_Pa, Press_dB and bepres (ASCII database file for LS - Prepost) are provided
1 - Press_Pa_real and Press_Pa_imag are provided, in addition to Press_Pa, Press_dBand bepres
10 - Files for IPFILE = 0, and fringe files for acoustic pressure
11 - Files for IPFILE = 1, and fringe files for acoustic pressure
20 - Files for IPFILE = 0, and fringe files for sound pressure level
21 - Files for IPFILE = 1, and fringe files for sound pressure level
31 - Files for IPFILE = 1, and fringe files for acoustic pressure (real part)
41 - Files for IPFILE = 1, and fringe files for acoustic pressure (imaginary part)
Type: integer
iread
The type of SEA run.
0 - Run SEA analysis
1 - Read FEM keyword input deck and create SEA model
Type: integer
iss
The type of SEA run.
0 - Run SEA analysis
1 - Read FEM keyword input deck and create SEA model
Type: integer
istress
The stress computation flag.
0 - Stress results are not requested
1 - Stress results are requested
Type: integer
itt
The area moment of inertia about local t-axis.
Type: double
iunits
The flag for unit changes.
0 - Do not apply unit change
1 - MKS units are used, no change needed
2 - Units lbf × s2/in, inch, s, lbf, psi, etc. are used, changed to MKS in BEM Acoustic computation
3 - Units kg, mm, ms, kN, GPa, etc. are used, changed to MKS in BEM acoustic computation
4 - Units ton, mm, s, N, MPa, etc. are used, changed to MKS in BEM acoustic computation
Type: integer
j
The torsional constant.
Type: integer
lc1
The ID of the load curve defining real part of pressure, normal velocity, or impedance, or defining real (in-phase) part (LCFLAG=0) or amplitude (LCFLAG=1) of load as a function of frequency.
Type: entity array
lc2
The ID of the load curve defining imaginary part of pressure, normal velocity, or impedance, or defining imaginary (out-phase) part (LCFLAG=0) or phase angle (LCFLAG=1) of load as a function of frequency
Type: entity array
lc3
The ID of the load curve defining load duration for each frequency.
Type: entity array
lc_tbid
The ID of the load curve or table.
Type: entity array
lcdam
The ID of the load curve defining mode dependent modal damping coefficient.
Type: entity
lcdamp
The ID of the load curve defining frequency dependent modal damping ratio.
Type: entity
lcflag
The load curve definition flag.
0 - Load curves are given as amplitude/phase angle
1 - Load curves are given as real/imaginary components
Type: integer
lcflags
The load curve definition flag.
Type: integer array
lcfreq
The ID of the load curve defining the frequencies for FRF/SEA output.
Type: entity
lcid_1
The ID of the curve for real part of frequency dependent complex sound speed.
Type: entity
lcid_2
The ID of the curve for imaginary part of frequency dependent complex sound speed.
Type: entity
lcid_curve
The ID of the S-N fatigue curve.
Type: entity array
lcid_negative
The S-N fatigue curve Negative values.
-1 - S-N fatigue curve uses equation NS^b = a
-2 - S-N fatigue curve uses equation log(S) = a - b*log(N)
-3 - S-N fatigue curve uses equation S = a*N^b
-4 - S-N fatigue curve uses equation S = a - b*log(N)
Type: integer array
lcid_option
The flag specifying LCID options.
Type: Boolean array
lcids1
The ID of the load curve to describe the amplitude (or real part) of velocity.
Type: entity array
lcids2
The ID of the load curve to describe the phase (or imaginary part) of velocity.
Type: entity array
lctyp
The type of load curve defining modal damping coefficient.
0 - Abscissa value defines frequency
1 - Abscissa value defines mode number
Type: integer
lctyp2
The type of load curves (LDPSD1 and LDPSD2) for defining cross PSD.
0 - LDPSD1 defines real part and LDPSD2 defines imaginary part
1 - LDPSD1 defines magnitude and LDPSD2 defines phase angle in degrees
2 - LDPSD1 defines magnitude and LDPSD2 defines phase angle in radians
Type: integer array
lctyp_input_spectrum
The load curve type for defining the input spectrum.
0 - Base velocity (vs. natural frequency)
1 - Base acceleration (vs. natural frequency)
2 - Base displacement (vs. natural frequency)
3 - Nodal force (vs. natural frequency)
4 - Pressure (vs. natural frequency)
5 - Base velocity (vs. natural period)
6 - Base acceleration (vs. natural period)
7 - Base displacement (vs. natural period)
8 - Nodal force (vs. natural period)
9 - Pressure (vs. natural period)
10 - Base velocity time history
11 - Base acceleration time history
12 - Base displacement time history
Type: integer array
ldflag
The type of loading curves.
0 - Log-Log interpolation
1 - Semi-Log interpolation
2 - Linear-Linear interpolation
Type: integer
ldflw
The load curve for exponential decay for TBL in flow-wise direction.
Type: entity array
ldpsd
The load curve for PSD, SPL, or time history excitation.
Type: entity array
ldpsd1
The load curve for real part or magnitude of cross PSD.
Type: entity array
ldpsd2
The load curve for imaginary part or phase angle of cross PSD.
Type: entity array
ldspn
The load curve for exponential decay for TBL in span-wise direction.
Type: entity array
ldtyp
The excitation load.
0 - PSD
1 - SPL (for plane wave only)
2 - Time history load
Type: integer
ldvel
The load curve for phase velocity.
Type: entity array
len_x
The length of the longer side of the plate.
Type: double
len_y
The length of the shorter side of the plate.
Type: double
length
The length of the edge in connection.
Type: double
lntyp
The set type for LNID.
1 - Node ID
2 - Node set ID
3 - Segment set ID
4 - Part ID
5 - Part set ID
Type: integer array
load_i
The ID of load i for cross PSD.
Type: integer array
load_j
The ID of load j for cross PSD.
Type: integer array
loadtyp
The input power type.
1 - Power
2 - Force
3 - Velocity
4 - Bending wave power for plate
5 - Shear wave power for plate
Type: integer
localoptions
The LOCAL options.
1 - NODE_SET
2 - PART
3 - PART_SET
Type: integer
ltype
The type of LCID.
0 - Semi-log interpolation (default)
1 - Log-Log interpolation
2 - Linear-Linear interpolation
Type: integer array
lwave
The longitudinal wave.
Type: double
mag
The magnitude of the incident sound wave.
Type: double array
mag_curve
The ID of the curve defining the frequency dependent magnitude.
Type: entity array
mag_option
The flag specifying MAG options.
Type: Boolean array
mass_density_sub
The mass density of subsystem.
Type: double
mattyp
The material type.
1 - Elastic
2 - Elasto-plastic
Type: integer
maxit
The maximum number of iterations for iterative solver.
Type: integer
mbeg
The first mode ID in block n.
Type: integer array
mcomb
The method for combination of modes.
-14 - NRL-SUM method with CSM (Closely Spaced Modes) treatment, where the CSM pairs are defined by SID
-4 - NRL-SUM method with CSM (Closely Spaced Modes) treatment
0 - SRSS method
1 - NRC Grouping method
2 - Complete Quadratic Combination method
3 - double Sum method
4 - NRL-SUM method
5 - double Sum method based on Gupta-Cordero coefficient
6 - double Sum method based on modified Gupta-Cordero coefficient
7 - Rosenblueth method
Type: integer
mdmax
The last mode employed in FRF computation or modal superposition method.
Type: integer
mdmin
The first mode employed in FRF computation or modal superposition method.
Type: integer
memory
The memory flag.
0: Modal superposition performed in-core
1: Modal superposition performed out-of-core
Type: integer
mend
The last mode ID in block n.
Type: integer array
method
The method used in acoustic analysis or modal response analysis.
0 - Rayleigh method
1 - Kirchhoff method coupled to FEM for acoustics
2 - Variational Indirect BEM
3 - Collocation BEM
4 - Collocation BEM with Burton-Miller formulation for exterior problems
Type: integer
mftg
The method for random fatigue analysis.
0 - No fatigue analysis
1 - Steinberg's three-band method
2 - Dirlik method
3 - Narrow band method
4 - Wirsching method
5 - Chaudhury and Dover method
6 - Tunna method
7 - Hancock method
8 - Lalanne method
Type: integer
mid
The mode ID.
Type: integer array
mode_sid
The mode set identification.
Type: entity
modeoptions
The MODE Options.
1 - LIST
2 - GENERATE
3 - SET
4 - LOAD_PROJECTION
5 - MODAL_COEFFICIENT
Type: integer
moduleid
The module ID of the entity.
Type: integer
mount
The mount type.
1 - Hull Mounted System
2 - Deck Mounted System
3 - Shell Plating Mounted System
Type: integer
movemt
The movement type.
1 - Vertical
2 - Athwartship
3 - Fore and Aft
Type: integer
mxtdmp
The acoustic stiffness and mass matrices dumping.
0 - No dumping
1 - Dumping globally assembled acoustic stiffness and mass matrices in Harwell-Boeing sparse matrix format
Type: integer
n1
The node or node set or segment set ID for excitation input.
Type: entity
n1typ
The type of N1.
0 - Node ID
1 - Node set ID
2 - Segment set ID
Type: integer
n2typ
The type of N2.
0 - Node ID
1 - Node set ID
2 - Segment set ID
Type: integer
napsd
The number of auto PSD load definitions.
Type: integer
name
The name of the entity.
Type: string
nbc
The number of boundary condition cards.
Type: integer
nboundary
The number of Boundary conditions.
Type: integer
ncpsd
The number of cross PSD load definition.
Type: integer
ndd
The number of domain decomposition.
Type: integer
nelm_x
The number of elements on longer side of the plate.
Type: integer
nelm_y
The number of elements on shorter side of the plate.
Type: integer
nerp
The number of ERP panels.
Type: integer
nexcitations
The number of excitation loads.
Type: integer
nfreq
The number of output frequencies.
Type: integer
nfreqrange
The number of frequency range.
Type: integer
nfrup
The preconditioner update option.
Type: integer
nfspace
The frequency spacing option for SEA output.
0 - Linear
1 - Logarithmic
2 - Biased
Type: integer
nftg
The field specifying the number of S-N curves to be defined.
Type: integer
nftg_negative
The field specifying the number of S-N curves to be defined.
Type: integer
Nftg_negflag
The NFTG option.
Type: Boolean
nid
The node ID or node set ID or segment set ID for acoustic result output.
Type: entity
nids
The node ID.
Type: entity array
nmbegend
The number of mode block cards.
Type: integer
nmid
The number of mode ID cards.
Type: integer
nmsort
The number of modes to be retained which have the largest load projection ratios.
Type: integer
noel
The location where normal velocity or acceleration is taken.
0 - Elements or Segments
1 - Nodes
Type: integer
norm
The normal direction of the plate.
1 - X-direction
2 - Y-direction
3 - Z-direction
Type: integer
norms
The NORM should be set such that the normal vectors point away from the fluid.
0 - Normal vectors are not inverted
1 - Normal vectors are inverted
Type: integer array
notyp
The type of NOUT.
0 - Part set ID
1 - Part ID
2 - Segment set ID
3 - Node set ID
-2 - segment set ID which mismatches with acoustic boundary nodes
Type: integer
nout
The part set or part or segment set or node set ID for response output.
Type: entity
nova
The response output type.
0 - Velocity
1 - Acceleration
Type: entity
npg
The number of Gauss integration points.
Type: entity
nsidext
The node ID or node set ID or segment set ID of output exterior field points.
Type: entity
nsidint
The node or segment set ID of output interior field points.
Type: entity
nsidpc
The node set ID for the field points where panel contributions to SPL (Sound Pressure Level) are requested.
Type: entity
nsids
The node set ID.
Type: entity array
nspectrum
The number of input spectrum.
Type: integer
nsub
The number of subsystems in this connection.
Type: integer
ntyp
The set type.
0 - Node
1 - Node Set
Type: integer
ntyp_ssd
The type of NID.
0 - Node ID
1 - Node set ID
2 - Segment set ID
Type: integer array
num_nsid
The number of entities.
Type: integer
num_pid
The number of entities.
Type: integer
num_psid
The number of entities.
Type: integer
nwaves
The number of incident waves.
Type: integer
output
The output option.
0 - Write amplitude and phase angle pairs
1 - Write real and imaginary pairs
Type: integer
outputsuppressed
Returns non-zero if the entity is set "do not export", 0 otherwise.
Type: integer
partid
The part ID.
Type: entity array
partsetid
The part set ID.
Type: entity array
pathoptions
The PATH Options.
0 - NONE
1 - PARTITION
2 - NOJOBID
Type: entity array
pid
The part ID or part set ID to define the acoustic domain.
Type: entity
pid_sid
The part ID or part set ID or node set ID.
Type: entity
pids
The part ID.
Type: entity array
planeid
The plane ID for defining the half-space problem.
Type: integer
plate_area
The plate area.
Type: double
plate_dampb
The damping factor for bending wave.
Type: double
plate_dampl
The damping factor for longitudinal wave.
Type: double
plate_lc2
The load curve for damping factor for longitudinal wave.
Type: entity
plate_lc3
The load curve for damping factor for shear wave.
Type: entity
plate_length
The length of the plate.
Type: double
plate_perim
The perimeter of the plate.
Type: double
plate_thick
The thickness of the plate.
Type: double
plate_width
The width of the plate.
Type: double
poolid
The pool number of the entity.
Type: integer
poolname
The pool name of the entity.
Type: string
pr
The poisson's ratio of subsystem.
Type: double
pref
The reference pressure to be used to output pressure in dB in the Press_dB file.
Type: double
psids
The part set ID.
Type: entity array
ptyp
The set type.
0 - Part
1 - Part Set
Type: integer
ptyp_ssd
The type of PID.
0 - Part ID
1 - Part set ID
2 - Segment set ID
Type: integer array
ptyp_ssd
The type of PID.
0 - Part
1 - Part Set
2 - SET_SOLID
3 - SET_BEAM
4 - SET_SHELL
5 - SET_TSHELL
Type: integer array
r
The radius of the sphere.
Type: double
r0
The fluid density.
Type: double
radeff
The radiation efficiency computation flag.
0 - Radiation efficiency computation is not requested
1 - Radiation efficiency computation is requested
Type: integer
relatv
The flag for displacement, velocity and acceleration results.
0 - Absolute values are requested
1 - Relative values are requested
Type: integer
restdp
The restart option.
-1 - A new run with writing dumpssd for future restart
0 - A new run without writing dumpssd
1 - Restart with dumpssd with writing new dumpssd for future restart
2 - Restart with dumpssd without writing new dumpssd
Type: integer
restmd
The restart option when different types of loads are present.
0 - Don't read the dump file for PSD and RMS
1 - Read in PSD and RMS values from the dump file and add them to the values computed in the current load case
Type: integer
restmd
The restart option.
0 - A new modal analysis is performed
1 - Restart with d3eigv
2 - Restart with modeshp binary scratch file
Type: integer
restrt
The flag to save an LS-DYNA analysis if the binary output file in the (bem=filename) option has not been changed.
0 - LS-DYNA time domain analysis is processed and generates a new binary file
1 - LS-DYNA time domain analysis is not processed. The binary files from previous run are used.
2 - LS-DYNA restarts from d3dump file by using R command line parameter
3 - LS-DYNA reads in user provided velocity history saved in an ASCII file, bevel
4 - Run acoustic computation on a boundary element mesh with velocity information given with a denser finite element mesh in last run.
5 - LS-DYNA time domain analysis is not processed. The binary file filename from previous run is used. An FFT is performed to get the new frequency domain boundary velocity and the results are saved in bin_velfreq.
Type: integer
sf
The load curve scale factor.
Type: integer
shellsetid
The shell set ID.
Type: entity array
shptyp
The ship type.
1 - Submarine
2 - Surface ship
Type: integer
sids
The ID of the load cases.
Type: integer array
snlimt
The flag setting the algorithm used when stress is lower than the lowest stress on S-N curve or lower than STHRES.
0: If LCID > 0, use the life at the last point on S-N curve. If LCID < 0 , use the life at STHRES
1: If LCID > 0, extrapolates from the last two points on S-N curve. Ignored if LCID < 0
2: Ignored if LCID > 0 or LCID < 0
Type: integer array
sntype
The stress type of S-N curve in fatigue analysis.
Type: integer
solidsetid
The solid set ID.
Type: entity array
solver_id
The solver ID of the entity.
Type: integer
solverkeyword
The name of the solver keyword.
Type: string
solvername
The solver name of the entity for entities enabled for name pool, otherwise the internal name of the entity.
Type: string
ssdoptions
The SSD Options.
0 - NONE
1 - FATIGUE
2 - ERP
3 - FRF
4 - DIRECT
5 - DIRECT_FREQUENCY_DEPENDENT
Type: integer
ssid2s
The segment set ID.
Type: entity array
ssids
The segment set ID.
Type: entity array
sstypes
The boundary element type.
0 - Part set ID
1 - Part ID
2 - Segment set ID
Type: integer array
std
The design spectrum standard for shock load.
1 - NRL-1396
-1 - Spectrum constants defined by user in Card 5
Type: integer
sthres
The fatigue threshold.
Type: double array
strsf
The stress scale factor to accommodate different ordinates in S-N curve.
1.0 - Used if the ordinate in S-N curve is stress range
2.0 - Used if the ordinate in S-N curve is stress amplitude
Type: double
strtyp
The stress used in fatigue analysis.
0 - von Mises stress
1 - Maximum principal stress
2 - Maximum shear stress
Type: integer
styp
The set type.
0 - Part ID
1 - Part set ID
2 - Segment set ID
3 - Node set ID
Type: integer array
styp
The flag specifying meaning of SID.
0 - Node
1 - Node Set
2 - Segment Set
3 - Part ID
4 - Part Set
Type: integer array
stype
The flag specifying meaning of SID.
0 - Node
1 - Node Set
2 - Segment Set
3 - Part
4 - Part Set
Type: integer array
stype_neg
The ID of the load cases.
Type: integer array
stype_option
The flag specifying STYPE option.
Type: Boolean array
subid
The ID of subsystem.
Type: integer
subids
The ID of subsystem.
Type: integer array
subtyp
The type of subsystem.
1 - Plate
2 - Cavity
3 - Beam
Type: integer
swave
The shear wave.
Type: double
systemid
The ID of the system defining wave direction.
Type: entity array
t_hold
The hold-off period before the exponential window.
Type: double
tcoarse
The tolerance for slope change percentage for removing intermediate points from PSD curve.
Type: double
temper
The temperature.
Type: double
texpos
The exposure time.
Type: double
thick
The thickness of the plate.
Type: double
thickshellsetid
The ID of the thick shell set.
Type: entity array
tolfct
The tolerance in factorization of the low rank matrix.
Type: double
tolitr
The tolerance for the iterative solver.
Type: double
tollr
The tolerance for low rank approximation of dense matrix.
Type: double
trslt
The request time domain results.
0 - No time domain results are requested
1 - Time domain results are requested (Press_Pa_t gives absolute value pressure as a function of time)
2 - Time domain results are requested (Press_Pa_t gives real value pressure vs. time)
Type: integer
tstart
The start time for recording velocity or acceleration in LS-DYNA simulation.
Type: double
twave
The torsional wave.
Type: double
twave
The type of incident sound wave.
1 - Plane wave
2 - Spherical wave
Type: integer array
typext
The output exterior field point type.
0 - Node ID
1 - Node set ID
2 - Segment set ID
Type: integer
typint
The output interior field point type.
0 - Node ID
1 - Node set ID
2 - Segment set ID
Type: integer
umlt
The multiplier for converting g to [length unit]/[time unit]2.
Type: double
unit
The flag for acceleration unit conversion.
0 - Use [length unit]/[time unit]2 as unit of acceleration
1 - Use "g" as unit for acceleration, and SI units (Newton, kg, meter, second, etc.) elsewhere
2 - Use "g" as unit for acceleration, and Engineering units (lbf, lbf × second2/inch, inch, second, etc.) elsewhere
3 - Use "g" as unit for acceleration, and units (kN, kg, mm, ms, GPa, etc.) elsewhere
4 - Use "g" as unit for acceleration, and units (Newton, ton, mm, second, MPa, etc.) elsewhere
-1 - Use "g" as unit for acceleration and provide the multiplier for converting g to [length unit]/[time unit]2
Type: integer
va
The coefficients to define the velocity spectrum.
Type: double
vad
The velocity/acceleration/displacement flag.
0 - Velocity by steady state dynamics (SSD)
1 - Velocity by transient analysis
2 - Opening (zero pressure)
11 - Velocity by LCID1 (amplitude) and LCID2 (phase)
12 - Velocity by LCID1 (real) and LCID2 (imaginary)
21 - Acceleration by LCID1 (amplitude) and LCID2 (phase)
22 - Acceleration by LCID1 (real) and LCID2 (imaginary)
31 - Displacement by LCID1 (amplitude) and LCID2 (phase)
32 - Displacement by LCID1 (real) and LCID2 (imaginary)
41 - Impedance by LCID1 (amplitude) and LCID2 (phase)
42 - Impedance by LCID1 (real) and LCID2 (imaginary)
51 - Pressure by LCID1 (amplitude) and LCID2 (phase)
52 - Pressure by LCID1 (real) and LCID2 (imaginary)
Type: integer array
vad1
The excitation input type.
0 - Base velocity
1 - Base acceleration
2 - Base displacement
3 - Nodal force
4 - Pressure
5 - Enforced velocity by large mass method
6 - Enforced acceleration by large mass method
7 - Enforced displacement by large mass method
8 - Torque
9 - Base angular velocity
10 - Base angular acceleration
11 - Base angular displacement
Type: integer
vad2
The response output type.
0 - Velocity
1 - Acceleration
2 - Displacement
3 - Nodal force
Type: integer
vad_excitation
The excitation input type.
0 - Nodal force
1 - Pressure
2 - Base velocity
3 - Base acceleration
4 - Base displacement
5 - Enforced velocity by large mass method
6 - Enforced acceleration by large mass method
7 - Enforced displacement by large mass method
8 - Torque
9 - Base angular velocity
10 - Base angular acceleration
11 - Base angular displacement
12 - Enforced velocity (for DIRECT type keyword options only)
13 - Enforced acceleration (for DIRECT type keyword options only)
14 - Enforced displacement (for DIRECT type keyword options only)
Type: integer array
vaflag
The loading type.
0 - No random vibration analysis
1 - Base acceleration
2 - Random pressure
3 - Plane wave
4 - Shock wave
5 - Progressive wave
6 - Reverberant wave
7 - Turbulent boundary layer wave
8 - Nodal force
9 - Base velocity
10 - Base displacement
11 - Enforced acceleration by large mass method
12 - Enforced velocity by large mass method
13 - Enforced displacement by large mass method
Type: integer
vapsd
The flag for PSD output.
0 - Absolute PSD output is requested
1 - Relative PSD output is requested
Type: integer
varms
The flag for RMS output.
0 - Absolute RMS output is requested
1 - Relative RMS output is requested
Type: integer
vb
The coefficients to define the velocity spectrum.
Type: integer
vc
The coefficients to define the velocity spectrum.
Type: double
velout
The flag for writing out nodal or elemental velocity data.
0 - No writing out velocity data
1 - Write out time domain velocity data
2 - Write out frequency domain velocity data
Type: integer
vf
The coefficients to define the velocity spectrum.
Type: double
vid
The vector ID for DOF values of 4.
Type: entity array
vid2
The vector ID for DOF2=0 for response direction.
Type: entity
vid_direction
The vector ID for DOF1=4 for excitation input.
Type: entity
vidoptions
The flag specifying the VID options.
Type: Boolean
vidvalue
The direction of shock load.
1 - X-direction
2 - Y-direction
3 - Z-direction
Type: integer
x_c
The x-directional cosine of shock load.
Type: double
xcs
The direction cosines for the place wave, or coordinates of the point source for the spherical wave.
Type: double array
y_c
The y-directional cosine of shock load.
Type: double
ycs
The direction cosines for the place wave, or coordinates of the point source for the spherical wave.
Type: double array
z_c
The z-directional cosine of shock load.
Type: double
zcs
The direction cosines for the place wave, or coordinates of the point source for the spherical wave.
Type: double array

Version History

2022