SVC produces a text output file which contains an annotated table of all the SVCs. The output file has the root name chosen by the user for other Adams output files, with the extension .svc. The format of the annotated .svc file is self explanatory. In a full vehicle analysis, all the values are computed and output. In a half-vehicle analysis, the characteristics that are not computed are reported as zero. The last page of output gives the sign convention for the SVCs. Included below is an examples of .svc file generated from running the SVC event.
Example Annotated (.svc) Output File
==========================================
= S V C =
= =
= STATIC VEHICLE CHARACTERISTICS =
= ADAMS Model Post Processor =
= =
= =
= =
==========================================
ADAMS Model Title:
vehicle_name, OUTPUT UNITS = SI 2009-10-13 17:47:27
GENERAL CHARACTERISTICS
_________________________________________________________________________
(PARAMETER) (UNITS) (TOTAL) (LEFT) (RIGHT)
_________________________________________________________________________
Total weight N 18.79E+03
Front ground reaction N 10.06E+03 5122.72 4933.28
Rear ground reaction N 8737.90 4395.09 4342.81
Total roll inertia Kg mm**2 629.5E+06
Total pitch inertia Kg mm**2 3.254E+09
Total yaw inertia Kg mm**2 3.264E+09
Total product Ixy Kg mm**2 1.607E+06
Total product Ixz Kg mm**2 -54.46E+06
Total product Iyz Kg mm**2 -1.487E+06
Sprung mass Kg 1601.18
Sprung roll inertia Kg mm**2 459.6E+06
Sprung pitch inertia Kg mm**2 2.543E+09
Sprung yaw inertia Kg mm**2 2.464E+09
Sprung product Ixy Kg mm**2 -13.66E+03
Sprung product Ixz Kg mm**2 2.020E+06
Sprung product Iyz Kg mm**2 -213.5E+03
Total c.g. height mm 674.64
Sprung c.g. height mm 734.78
Body yaw angle DEG 0.00
Body pitch angle DEG -36.21E-03
Body roll angle DEG 85.21E-03
Speed mm/S 0.00
Wheelbase mm 2834.43 2834.82 2834.03
Bounce node loc. wrt H-pt. mm 2921.18
Bounce natural frequency Hz 1.32
Pitch node loc. wrt H-pt. mm -705.38
Pitch natural frequency Hz 1.58
Ride frequency ratio 1.13
ADAMS Model Title:
vehicle_name, OUTPUT UNITS = SI
FRONT SUSPENSION CHARACTERISTICS
Suspension Description = Short_Long_Arm
_________________________________________________________________________
(PARAMETER) (UNITS) (AVERAGE) (LEFT) (RIGHT)
_________________________________________________________________________
Unsprung mass (total) Kg 115.91
Unsprung c.g. height mm 376.96
Roll center height mm 75.55
Wheel center rise mm 29.64 29.00 30.28
Static loaded tire radius mm 356.27 355.80 356.74
Track width mm 1490.51
Axle distance from vehicle cg mm 1317.82
steer angle DEG 0.00
Toe Angle DEG 208.2E-03 207.7E-03 208.7E-03
Caster Angle DEG 4.71 4.72 4.71
Camber Angle DEG -458.8E-03 -375.5E-03 -542.2E-03
Kingpin Angle DEG 11.84 11.75 11.92
KP offset at wc, long mm 0.00 1.19 1.22
KP offset at wc, lat mm 0.00 112.40 -112.47
Caster Angle wrt body DEG 4.68 4.68 4.67
Camber Angle wrt body DEG -458.7E-03 -460.6E-03 -456.8E-03
Kingpin Angle wrt body DEG 11.83 11.84 11.83
Scrub radius mm 40.53 40.61 40.45
Caster trail mm 28.63 28.60 28.66
Toe change DEG/mm -3.935E-03 -3.926E-03 -3.944E-03
Caster change DEG/mm 9.786E-03 9.793E-03 9.779E-03
Camber change DEG/mm -1.241E-03 -1.408E-03 -1.075E-03
Roll camber coefficient DEG/DEG 950.6E-03 948.6E-03 952.7E-03
Percentage roll steer % -5.12
Track change mm/mm 81.78E-03 80.74E-03
Wheelbase change mm/mm -11.34E-03 -11.35E-03 -11.33E-03
Wheel rate N/mm 34.84 34.84 34.83
Single bump wheel rate N/mm 56.33 56.33 56.32
Ride rate N/mm 29.71 29.71 29.71
Tire rate N/mm 201.91 201.80 202.01
Roll rate - wheel N mm/DEG 2.851E+06
Roll rate - total N mm/DEG 1.650E+06
Wheel/spring ratio mm/mm 551.4E-03 551.4E-03 551.3E-03
Wheel/shock ratio mm/mm 566.0E-03 565.8E-03 566.2E-03
Percent anti-dive/braking % 12.89 12.89 12.89
Percent anti-lift/accel. % 0.00 0.00 0.00
Front view i.c. - lateral mm 15.13E+03 14.49E+03 15.77E+03
Front view i.c. - vertical mm 1523.51 1466.13 1580.88
Side view i.c. fore & aft mm 5854.70 5850.47 5858.94
Side view i.c. vertical mm 289.87 289.41 290.32
Wheel hop natural freq. Hz 10.17 10.17 10.17
Wheel tramp natural freq. Hz N/A
Front ride frequency Hz 1.29
Front ride height mm N/A N/A N/A
ADAMS Model Title:
vehicle_name, OUTPUT UNITS = SI
REAR SUSPENSION CHARACTERISTICS
Suspension Description = Four_Link_Solid_Axle
_________________________________________________________________________
(PARAMETER) (UNITS) (AVERAGE) (LEFT) (RIGHT)
_________________________________________________________________________
Unsprung mass (total) Kg 197.52
Unsprung c.g. height mm 361.80
Roll center height mm 486.90
Wheel center rise mm 61.47 60.49 62.45
Static loaded tire radius mm 359.53 359.41 359.66
Track width mm 1486.60
Axle distance from vehicle cg mm 1516.61
Toe Angle DEG 0.00 -31.12E-03 31.12E-03
Camber Angle DEG 0.00 1.000E-02 -1.000E-02
Camber Angle wrt body DEG 0.00 -75.25E-03 75.25E-03
Toe change DEG/mm -8.613E-06 971.7E-06 -989.0E-06
Camber change DEG/mm 5.925E-06 -668.4E-06 680.3E-06
Roll camber coefficient DEG/DEG -3.199E-06 -3.199E-06 -3.199E-06
Percentage roll steer % 7.12
Track change mm/mm -63.59E-03 64.73E-03
Wheelbase change mm/mm -72.56E-03 -59.22E-03 -85.91E-03
Wheel rate N/mm 33.83 33.53 34.13
Single bump wheel rate N/mm 38.24 37.86 38.63
Ride rate N/mm 28.97 28.75 29.19
Tire rate N/mm 201.91 201.86 201.96
Roll rate - wheel N mm/DEG 848.2E+03
Roll rate - total N mm/DEG 696.5E+03
Wheel/spring ratio mm/mm 818.9E-03 818.7E-03 819.0E-03
Wheel/shock ratio mm/mm 1.10 1.09 1.10
Percent anti-lift/braking % 17.03 16.42 17.65
Percent anti-squat/accel. % 44.83 43.21 46.44
Front view i.c. - lateral mm 743.30 751.78 734.81
Front view i.c. - vertical mm 486.49 486.46 486.52
Side view i.c. fore & aft mm -10.51E+03 -10.60E+03 -10.42E+03
Side view i.c. vertical mm 1120.88 987.24 1254.53
Wheel hop natural freq. Hz 7.78
Wheel tramp natural freq. Hz 8.88
Rear ride frequency Hz 1.45
Rear ride height mm N/A N/A N/A
S V C SIGN CONVENTION
(PARAMETER) CONVENTION FOR POSITIVE VALUE
______________________________________________________________________________
Toe (angle) Toe in
Caster (angle) Side view of kingpin tilted rearward
Camber (angle) Top of tire out
Wheel center rise Wheel moving into rebound
Toe change Wheel toes in when moved into jounce
Caster change Caster increases when wheel moves into
jounce
Camber change Top of tire moves inboard when wheel moves
into jounce
Track change Track increases as wheel moves into jounce
Wheelbase change Wheelbase increases as wheel moves into jounce
Roll camber coefficient Top of outside tire moves outboard relative to
ground as vehicle rolls
Percentage roll steer Average toe is outside of corner as
vehicle rolls
Lat. force deflection Wheel moves to the right when pushed from
right to left
Lat. force steer Wheel toes in when pushed from right to left
Lat. force camber Top of tire moves to the left when pushed
from right to left
Aligning torque deflection Wheel deflection to the right due to an
aligning torque at wheel center
Aligning torque steer Toe in due to an aligning torque at wheel
center
Aligning torque camber Top of tire moves outboard due to an
aligning torque at wheel center
Recession steer Toe in due to a rearward force at the wheel
center
Brake steer Toe in due to a rearward force at the tire
contact patch
Tractive force steer center due to a forward force at the wheel
Bounce node location Rearward location with respect to H-point
Pitch node location Rearward location with respect to H-point