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README
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Brief description of each Alter delivered with the current version of MSC/NASTRAN. Click on the alter of interest below for more detailed description.
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alter1ga.v2001
alter2ga.v2001
alter9ga.v2001
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Performs coupled load analysis.
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alter1ha.v2001
alter2ha.v2001
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Performs coupled load analysis using PARTS superelement.
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alteria.v2001
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New External Superelement (Replaces alteria.vxx)
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appenda.v2001
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Appends eigenvalue solutions.
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checka.v2001
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Performs rigid body checks, kinetic energy calculation, and modal effective
weight calculation.
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cmsefa.v2001
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Calculates fraction of the strain energy in system modes which contributed by superelement component modes.
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cova.v2001
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Computes the variance and standard deviation in response given the user-specified
variance in design variables.
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cygyroa.v2001
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Adds gyroscopic terms to cyclic symmetry analyses.
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dbdela.v2001
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Deletes datablocks generated by DBSTORE.
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dbtoolsz.ZIP
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A Set of Tools for Fast Restart Usage.
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ddamall.v2001
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Performs dynamic analysis of shipboard equipment using the dynamic design analysis
method.
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delmodea.v2001
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Allows the user to delete individual modes from the set of system (residual)
level modes.
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dmigtrna.v2001
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Transforms the dmig matrix to the basic coordinate system.
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dtranra.v2001
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Allows "NOAP" restarts in the Structured Solution Sequences (SOL 109).
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evdsa.v2001
evds200a.v2001
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Compute eigenvector derivatives in design sensitivity analysis.
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fdm.*
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Coupled Frequency-dependent stiffness from testing into FE model for Frequency Response Analysis.
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fleigxa.v2001
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Uses symmetric formulation in complex eigenvalue for fluid-structure analysis.
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fstrsta.v2001
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Alter for the support of fast restart in SOLs 111 and 112.
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fsuma.v2001
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Alter for Including Preload in Frequency Response Analysis.
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genela.v2001
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Calculates the forces resulting from a GENEL element in SOL 112.
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glforcea.v2001
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Calculates superelement interface loads.
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gpftrna.v2001
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Calculates grid point force output in a transient analysis.
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gridloca.v2001
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Transforms the location of grid points to the basic coordinate
system.
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ir200a.v2001
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Incorporates Automatic Inertia Relief in SOL 200.
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irsa.v2001
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Incorporates dynamic reduction using the Improved Reduced System (IRS) method.
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k6esea.v2001
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Evalutes the Effects of K6ROT.
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mfreqea.v2001
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Calculates the contribution of each mode to the strain energy of the solution.
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mica.v2001
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Allows the use of initial conditions in a modal transient analysis.
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mmfindfixa.v2001
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Discards Rigid Body vectors when performing Massless Mechanism Check.
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mm44a.v2001
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Includes multiple mass configurations in a SOL 144 Run.
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modconta.v2001
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Calculates the Modal Contribution in SOL 111 and 112.
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modevala.v2001
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Determines whether the modes obtained are capable of representing the solution
to a set of applied loadings.
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mtacca.v2001
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Allows the use of modal transient analysis to solve for a structure which has
nonzero initial accelerations.
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mtranea.v2001
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Calculates the contribution of each mode to the strain energy and kinetic energy
of the solution.
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mtranra.v2001
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Allows "NOAP" restarts in the Structured Solution Sequences (SOL 112).
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nlgyroa.v2001
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Adds gyroscopic terms to nonlinear analysis.
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nlirma.v2001
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Alter for calculating inertia relief in SOL 106.
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norma.v2001
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Normalizes the output eigenvectors to a maximum of 1.0.
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nosesubca.v2001
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Replaces the Superelement Subcase ID with the Residual Subcase ID
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oloadcha.v2001
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Transforms the OLOAD Resultant into a User-defined Coordinate System
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ortx7a.v2001
ortx10a.v2001
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Scales Complex Eigenvectors to Produce Unit Generalized Mass Matrix
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pchdispa.v2001
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Creates DMIG entries containing the solution from a static run.
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postmaca.v2001
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Computes the cross-orthogonality between test modes and modes of an MSC/NASTRAN
model.
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premaca.v2001
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Computes the cross-orthogonality between modes of a full model and modes of
a reduced model.
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propa.v2001
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Provides propeller aerodynamic coefficients and wing/nacelle aerodynamic
interference loads for aircraft flutter analysis.
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pstmac2a.v2001
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Converts test modes to output2 format for post processing.
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qfromdb*.dat
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Sample Alter for Reading in Matrices from Database.
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ridgyroa.v2001
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Adds gyroscopic terms to dynamic analysis using the structured solution
sequences.
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rnormala.v2001
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Calculates repeatable rigid body modes.
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scrspca.v2001
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Scale Response Spectra Analysis using the SPCD Enforced Motion Method
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sebloada.v2001
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Calculates dynamic superelement interface loads.
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segyroa.v2001
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Adds gyroscopic terms to superelement analysis.
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sekefa.v2001
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Prints kinetic energy fractions for superelements for the system modes in SOL 103.
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solchka.v2001 dcchka.v2001
dfchka.v2001 dtchka.v2001
mfchka.v2001 mcchka.v2001
mochka.v2001 mtchka.v2001
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Perform load epsilon checks in dynamic analysis similar to the one used in
a static analysis.
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spc101a.v2001
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Separates the spc forces defined by the user versus those constrained by
param,autospc.
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statdiva.v2001
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Prints and plots eigenvectors for aeroelastic static divergence.
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tempmata.v2001
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Applies Temperature-dependent Material to Higher-order Solid Linear Elements in a Nonlinear Solution (SOL 106).
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trncompa.v2001
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Calculates the ply-by-ply composite stresses and failure indices in a transient
dynamic solution.
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vma.v2001
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Efficient method for calculating virtual mass.
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vmchka.v2001
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Alter for Checking Virtual Mass Model.
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111_by_modea.v2001
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Performs data recovery for individual modes in SOL 111.
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