Входной файл для Примера №14B. Моды с преднагрузкой SOL 106
SOL 106
TIME
600
CEND
$
TITLE = Normal Modes with Differential Stiffness
METHOD = 10
SUBCASE 1
NLPARM = 1
SPC = 1
LOAD = 1
DISPLACEMENT=ALL
$
BEGIN BULK
PARAM COUPMASS 1
PARAM WTMASS .00259
PARAM LGDISP 1
NLPARM 1 5 AUTO 5 25 PW NO + A
+ A .001 1.-7
PARAM,NMLOOP,5
$
EIGRL,10,,,3
PBARL 1 1 I + B
+ B 2. 1. 1. .1 .1 .1
CBAR 1 1 1 2 0. 1. 0.
CBAR 2 1 2 3 0. 1. 0.
CBAR 3 1 3 4 0. 1. 0.
CBAR 4 1 4 5 0. 1. 0.
CBAR 5 1 5 6 0. 1. 0.
CBAR 6 1 6 7 0. 1. 0.
CBAR 7 1 7 8 0. 1. 0.
CBAR 8 1 8 9 0. 1. 0.
CBAR 9 1 9 10 0. 1. 0.
CBAR 10 1 10 11 0. 1. 0.
$
$
MAT1 1 1.+7 .3 .101
GRID 1 0. 0. 0. 345
GRID 2 10. 0. 0. 345
GRID 3 20. 0. 0. 345
GRID 4 30. 0. 0. 345
GRID 5 39.9999 0. 0. 345
GRID 6 49.9999 0. 0. 345
GRID 7 60. 0. 0. 345
GRID 8 70. 0. 0. 345
GRID 9 80. 0. 0. 345
GRID 10 90. 0. 0. 345
GRID 11 100. 0. 0. 345
LOAD 2 1. 1. 1
SPC1 1 1234 1
SPC1 1 234 11
FORCE 1 11 0 500. 1. 0. 0.
ENDDATA