Card 22 - Articulated Vehicle Option: Veh1

Click Here for Input Card 20, Vehicle 1 (1 of 2)

Gam1.1

Gam2.1

NF.1

NS.1

TTimuRR1

TTimuLR1

XF3

XR3

YS3

22

Card: Field

Variable

Description

Original Units

Metric Units

Vehicle 1 Articulated Vehicle/Trailer Option Inputs: (Card 2 of 2 required)

Tractor-trailer option articulation angle limit stops definitions

These inputs are used to define the articulation stop properties of the tractor-trailer system. For the m-smac articulation option, an articulation limit is simulated by means of a linearly increasing resistance to articulation which occurs between the angles gam1.1 and gam2.1. The resistance is defined by the friction moment (NF.1) and the angular stop moment (NS.1)

22:1

Gam1.1

Beginning angle for increased resistance of V1 trailer articulation

deg

22:2

Gam2.1

Maximum articulation angle for V1 trailer.

Deg

22:3

NF.1

V1 trailer friction moment.

lb-in

N-cm

22:4

NS.1

V1 trailer angular stop moment.

lb-in

N-cm

The following Optional Tirmu inputs are permits the simulation of individual tires which have drag factors different than the nominal MU (i.e., metal gouging, etc.).

If entered as 0.0, program assumes default value of 1.0 (normal).

An input value of 0.86 would produce an effective friction of 0.60 for a tire on a nominal friction coefficient of 0.70

22:5

TTirmuRR1

V1 trailer RR trailer tire Tirmu friction multiplier factor

22:6

TTirmuLR1

V1 trailer LR trailer tire Tirmu friction multiplier factor

22:7

XF3

Distance from the CG of the trailer of Vehicle 1 to the front of the trailer

in

mm

22:8

XR3

Distance from the CG of the trailer of Vehicle 1 to the rear end of the trailer

in

mm

22:9

YS3

Overall width of the trailer of Vehicle 1 (may also be entered as trailer width. Value compared with the track width, if less than the track width, assumed to be width)

in

mm

Card 20 Articulated Vehicle Option: Veh1

Card 98 Veh#3/Trailer Collision information

Card 99 Trailer Release Option

Card 21 Articulated Vehicle Option: Veh2

Card 23 - Articulated Vehicle Option: Veh2, additional inputs

Figure 14 5th Wheel Friction

Figure 15 5th Wheel Articulation Stops


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Card 21 - Articulated Vehicle Option: Veh2