Package for Machine Design

Finite Element Analysis in Structural Mechanics

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en:ref:name:ie

Table of Contents

name.iE

Program

HEIG

Format

; program control IP KREST NROOT NITERX KTPR KEVP

; optional real parameters RP TOL

; end of input data EN EN

Description

$\mathtt{KREST}$The restart key.
$=1$start the computation, determine starting vectors automatically
$=2$start the computation, read starting vectors from the binary file name.EJG
$\mathtt{NROOT}$The number of requested eigenpairs (eigenvalues and corresponding eigenvectors).
$\mathtt{NITERX}$The maximum number of iterations allowed. The default value is $12.$
$\mathtt{KTPR}$The diagnostic prints key.
$=0$none
$=1$information about eigenvalue iterations (recommended)
$=2$iteration method inputs
$=3$solution
$=12$
$=13$
$=23$
combinations of abovementioned
$\mathtt{KEVP}$The generalized eigenproblem key.
$=0$dynamics, the consistent mass matrices are read from the binary file name.EMM
$=1$stability, the initial stress matrices are read from the binary file name.EMG
$\mathtt{TOL}$The convergence criterion. The default value is $10^{-6},$ often a much higher value suffices, e.g., $10^{-5}<\mathtt{TOL}<10^{-3}.$
en/ref/name/ie.txt · Last modified: by Petr Pařík