The inputs for the tire cornering stiffness can be entered as time history tables. This permits varying the tire cornering stiffness and/or tire friction factor multipliers during a simulation run (e.g., to simulate a tire deflating and/or rim gouging).
The first card for each input table is the table header card which describes the size and format for the input tables to follow. The Inputs for the Braking and/or Acceleration Torque Tables are entered on Cards 8:
TBCSTF1 |
TECSTF1 |
TINCC1 |
NTBLC1 |
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VARINC |
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40 |
Card: Field |
Variable |
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Description |
Original Units |
Default Units |
Metric Units | ||||||
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Optional Cornering Stiffness Table Inputs for V1 The control inputs for vehicle braking/tractive force for vehicle No. 1 are entered as time history tables of Force as a function of time on card(s) 40. The first card for each Cornering Stiffness table is the table header card which describes the size and format for the input tables to follow.
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Lb/rad |
Lb/deg |
N/deg | ||||||
40:1 |
TBTQ1 |
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Initial time for V1's cornering Stiffness inputs. |
seconds |
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40:2 |
TETQ1 |
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End time for V1's inputs |
seconds |
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40:3 |
TINCQ1 |
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Time increment for Cornering Stiffness inputs for V1. One value for CSTF is input for each increment, so the size of TINCC1 determines the detail with which the Cornering Stiffness Variations can be described by the mathematical model. NOTE: If field 6 (VarInc1, Option Variable increment input) is set=1, then the definition of this variable is for the number of table inputs. Maximum 50. |
Seconds |
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40:4 |
NTBLQ1 |
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Normally = 0.0. If < 0.0, the program reads in and ignores the CSTF tables included following card #40. (This option is to permit de-activating tables without having to delete the data in the tables.) |
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40:5 |
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Not used |
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40:6 |
VARINC |
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(optional) Set =1.0 to indicate Variable time increment Table inputs. Field 4 is then used to indicate the number of inputs in the table. |
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The Table Header card is followed by tables containing the values for the Cornering Stiffness for Vehicle No. 1: RF, LF, RR & LR tires (and RRR & LRR for trailer option), one set of values per card, and up to 50 table values. The format for the tables is as follows: (n is a sequence number starting at 1) |
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Time |
CSTFRF1 |
CSTFLF1 |
CSTFRR1 |
CSTFLR 1 |
RRR1 |
LRR1 |
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n |
40 |
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