Card 52 - Initial Conditions: Veh3

XCP30

YCP30

PSI30

PSI3DO

U30

V30

52

Card: Field

Variable

Description

Original

Units

Default

Units

Metric Units

52:1

XCP30

Xc30

The X' coordinate of the center of gravity of vehicle 1, (V3). This description can either be for the Vehicle#1 Trailer on separation (for Trailer Release Option (card 99) or for a separate Vehicle#3 which interacts with Vehicle#2 (when Trailer Release Option used and Time of Separation is 0.0). A fixed Cartesian coordinate system is used, with the positive X' axis shown pointing upward, and the positive Y' axis to the right. Angles are measured clockwise from the positive X' axis.

inches

feet

meters

52:2

YCP30

Yc30

The Y'-coordinate of the center of mass of V3. (see comments on XCP30).

inches

feet

meters

52:3

PSI30

ψc30

The heading angle of V3 measured clockwise from the positive X' axis.

degrees

52:4

PSI3DO

The angular velocity of V3. Taken to be positive when rotation is clockwise.

deg/sec

52:5

U30

U30

The initial forward velocity of V3. The longitudinal component of the total vector velocity of V3.

in/sec

MPH

m/sec

52:6

V30

V30

The initial sideways (lateral) velocity of V3 with right taken as positive.

in/sec

MPH

m/sec


More:

Card 54 - Dimensional and Inertial Properties: Veh3