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File modf contains the eigen modes, of the model.
Example of a modf-file of a BoBo-vehicle, written by MODAL:
Output of eigenmodes from program Modal rel.0003
----================================================----
Ident = modal_1
Date = 2000-05-26 Time = 12.43
Headlines=
Course in Rail Vehicle Dynamics
BoBo-vehicle; Wheel S1002, Rail UIC60i40; Friction= .400; Speed= 160.
Track geom.=Tangent_Track, Track irr.=Ideal_track
-----------------------------------------------------------
the eigenforms are scaled to maximum amplitude of '1'
the eigenforms are sorted in size order.
first row in output data is degree of freedom.
second row in output data is real part of the eigenform
third row in output data is imagimary part of the eigenform
Eigenform number 1 pole(-1.3416E+03, 0.0000E+00) frequency= .00
trc_112.vy trc_111.vy trc_121.vy trc_122.vy axl_112.vy axl_111.vy
1.00000E+00 9.99942E-01 9.37980E-01 9.37901E-01 -4.43627E-01 -4.43601E-01
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_112.vf axl_111.vf axl_121.vy axl_122.vy axl_121.vf axl_122.vf
4.28675E-01 4.28650E-01 -4.16113E-01 -4.16078E-01 4.02089E-01 4.02055E-01
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
bog_11.vf bog_12.vf axl_112.vp axl_111.vp axl_121.vp axl_122.vp
-1.32389E-02 -1.24177E-02 5.45981E-03 5.45949E-03 5.12121E-03 5.12078E-03
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
trc_112.y trc_111.y trc_121.y trc_122.y axl_112.y axl_111.y
-7.45368E-04 -7.45324E-04 -6.99140E-04 -6.99082E-04 3.30665E-04 3.30646E-04
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_112.f axl_111.f axl_121.y axl_122.y axl_121.f axl_122.f
-3.19521E-04 -3.19502E-04 3.10157E-04 3.10131E-04 -2.99704E-04 -2.99679E-04
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
bog_11.vy bog_12.vy car_1.vf bog_11.f bog_12.f bog_12.vp
2.06291E-04 1.93502E-04 2.01253E-05 9.86783E-06 9.25573E-06 6.64938E-06
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
bog_11.vp axl_112.p axl_111.p axl_121.p axl_122.p ccb11r.p
-4.96167E-06 -4.06956E-06 -4.06933E-06 -3.81718E-06 -3.81686E-06 1.88233E-06
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
ccb11l.p ccb12r.p ccb12l.p car_1.vy bog_11.y bog_12.y
-1.88233E-06 1.76376E-06 -1.76376E-06 -4.44667E-07 -1.53763E-07 -1.44230E-07
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
car_1.f bog_12.p bog_11.p car_1.y car_1.vp car_1.p
-1.50008E-08 -4.95623E-09 3.69827E-09 3.31440E-10 2.08301E-10 -1.55261E-13
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_111.vz axl_112.vz axl_121.vz axl_122.vz axl_121.vk axl_111.vk
-1.47804E-14 -1.47152E-14 -1.39173E-14 -1.38365E-14 1.99348E-16 1.98933E-16
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_122.vk axl_112.vk bog_11.vz bog_12.vz bog_11.vk bog_12.vk
-1.83175E-16 -1.69599E-16 1.45867E-16 1.04151E-16 5.99446E-17 5.97873E-17
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
bog_12.vx bog_11.vx axl_122.vx axl_112.vx axl_121.vx axl_111.vx
4.95462E-17 4.56880E-17 -4.04129E-17 -3.84516E-17 3.52257E-17 3.46448E-17
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
car_1.vx axl_111.z axl_112.z axl_121.z axl_122.z car_1.vz
-1.96894E-17 1.10517E-17 1.09802E-17 1.03456E-17 1.02903E-17 1.18938E-18
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
car_1.x car_1.vk bog_11.z axl_122.x axl_112.x axl_111.x
3.59210E-19 3.16820E-19 -2.44373E-19 1.94114E-19 1.90214E-19 1.40656E-19
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_121.x bog_12.z bog_11.k bog_12.k bog_12.x bog_11.x
1.37678E-19 1.33340E-19 1.06179E-19 6.50057E-20 -5.91073E-20 -1.24055E-20
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
car_1.k car_1.z
1.23696E-20 -3.01798E-21
0.00000E+00 0.00000E+00
Eigenform number 2 pole(-1.3416E+03, 0.0000E+00) frequency= .00
trc_121.vy trc_122.vy trc_112.vy trc_111.vy axl_121.vy axl_122.vy
1.00000E+00 9.99917E-01 -9.38086E-01 -9.38031E-01 -4.43627E-01 -4.43590E-01
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
axl_121.vf axl_122.vf axl_112.vy axl_111.vy axl_112.vf axl_111.vf
4.28675E-01 4.28640E-01 4.16160E-01 4.16136E-01 -4.02135E-01 -4.02111E-01
0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00 0.00000E+00
.
.
.
.etc.
Output of eigenmodes from program Modal rel.0003
----================================================----
Ident = modal_1
Date = 2000-05-26 Time = 12.43
Headlines=
Course in Rail Vehicle Dynamics
BoBo-vehicle; Wheel S1002, Rail UIC60i40; Friction= .400; Speed= 160.
Track geom.=Tangent_Track, Track irr.=Ideal_track
-----------------------------------------------------------
the eigenforms are scaled to maximum amplitude of '1'
the eigenforms are sorted in size order.
first row in output data is degree of freedom.
second row in output data is the absolute value of the eigenform
third row in output data is the angle of phase expressed in degrees
Eigenform number 1 pole(-1.3416E+03, 0.0000E+00) frequency= .00
trc_112.vy trc_111.vy trc_121.vy trc_122.vy axl_112.vy axl_111.vy
1.00000E+00 9.99942E-01 9.37980E-01 9.37901E-01 4.43627E-01 4.43601E-01
.0000000 .0000000 .0000000 .0000000 180.0000000 180.0000000
axl_112.vf axl_111.vf axl_121.vy axl_122.vy axl_121.vf axl_122.vf
4.28675E-01 4.28650E-01 4.16113E-01 4.16078E-01 4.02089E-01 4.02055E-01
.0000000 .0000000 180.0000000 180.0000000 .0000000 .0000000
bog_11.vf bog_12.vf axl_112.vp axl_111.vp axl_121.vp axl_122.vp
1.32389E-02 1.24177E-02 5.45981E-03 5.45949E-03 5.12121E-03 5.12078E-03
180.0000000 180.0000000 .0000000 .0000000 .0000000 .0000000
trc_112.y trc_111.y trc_121.y trc_122.y axl_112.y axl_111.y
7.45368E-04 7.45324E-04 6.99140E-04 6.99082E-04 3.30665E-04 3.30646E-04
180.0000000 180.0000000 180.0000000 180.0000000 .0000000 .0000000
axl_112.f axl_111.f axl_121.y axl_122.y axl_121.f axl_122.f
3.19521E-04 3.19502E-04 3.10157E-04 3.10131E-04 2.99704E-04 2.99679E-04
180.0000000 180.0000000 .0000000 .0000000 180.0000000 180.0000000
bog_11.vy bog_12.vy car_1.vf bog_11.f bog_12.f bog_12.vp
2.06291E-04 1.93502E-04 2.01253E-05 9.86783E-06 9.25573E-06 6.64938E-06
.0000000 .0000000 .0000000 .0000000 .0000000 .0000000
bog_11.vp axl_112.p axl_111.p axl_121.p axl_122.p ccb11r.p
4.96167E-06 4.06956E-06 4.06933E-06 3.81718E-06 3.81686E-06 1.88233E-06
180.0000000 180.0000000 180.0000000 180.0000000 180.0000000 .0000000
ccb11l.p ccb12r.p ccb12l.p car_1.vy bog_11.y bog_12.y
1.88233E-06 1.76376E-06 1.76376E-06 4.44667E-07 1.53763E-07 1.44230E-07
180.0000000 .0000000 180.0000000 180.0000000 180.0000000 180.0000000
car_1.f bog_12.p bog_11.p car_1.y car_1.vp car_1.p
1.50008E-08 4.95623E-09 3.69827E-09 3.31440E-10 2.08301E-10 1.55261E-13
180.0000000 180.0000000 .0000000 .0000000 .0000000 180.0000000
axl_111.vz axl_112.vz axl_121.vz axl_122.vz axl_121.vk axl_111.vk
1.47804E-14 1.47152E-14 1.39173E-14 1.38365E-14 1.99348E-16 1.98933E-16
180.0000000 180.0000000 180.0000000 180.0000000 .0000000 .0000000
axl_122.vk axl_112.vk bog_11.vz bog_12.vz bog_11.vk bog_12.vk
1.83175E-16 1.69599E-16 1.45867E-16 1.04151E-16 5.99446E-17 5.97873E-17
180.0000000 180.0000000 .0000000 .0000000 .0000000 .0000000
bog_12.vx bog_11.vx axl_122.vx axl_112.vx axl_121.vx axl_111.vx
4.95462E-17 4.56880E-17 4.04129E-17 3.84516E-17 3.52257E-17 3.46448E-17
.0000000 .0000000 180.0000000 180.0000000 .0000000 .0000000
car_1.vx axl_111.z axl_112.z axl_121.z axl_122.z car_1.vz
1.96894E-17 1.10517E-17 1.09802E-17 1.03456E-17 1.02903E-17 1.18938E-18
180.0000000 .0000000 .0000000 .0000000 .0000000 .0000000
car_1.x car_1.vk bog_11.z axl_122.x axl_112.x axl_111.x
3.59210E-19 3.16820E-19 2.44373E-19 1.94114E-19 1.90214E-19 1.40656E-19
.0000000 .0000000 180.0000000 .0000000 .0000000 .0000000
axl_121.x bog_12.z bog_11.k bog_12.k bog_12.x bog_11.x
1.37678E-19 1.33340E-19 1.06179E-19 6.50057E-20 5.91073E-20 1.24055E-20
.0000000 .0000000 .0000000 .0000000 180.0000000 180.0000000
car_1.k car_1.z
1.23696E-20 3.01798E-21
.0000000 .0000000
Eigenform number 2 pole(-1.3416E+03, 0.0000E+00) frequency= .00
trc_121.vy trc_122.vy trc_112.vy trc_111.vy axl_121.vy axl_122.vy
1.00000E+00 9.99917E-01 9.38086E-01 9.38031E-01 4.43627E-01 4.43590E-01
.0000000 .0000000 -180.0000000 -180.0000000 -180.0000000 -180.0000000
axl_121.vf axl_122.vf axl_112.vy axl_111.vy axl_112.vf axl_111.vf
4.28675E-01 4.28640E-01 4.16160E-01 4.16136E-01 4.02135E-01 4.02111E-01
.0000000 .0000000 .0000000 .0000000 -180.0000000 -180.0000000
.
.
.
.etc.