XCP30 |
YCP30 |
PSI30 |
PSI3DO |
U30 |
V30 |
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52 |
Card: Field |
Variable |
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Description |
Original Units |
Default Units |
Metric Units |
52:1 |
XCP30 |
X’c30 |
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 |
Y’c30 |
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 |
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52:4 |
PSI3DO |
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The angular velocity of V3. Taken to be positive when rotation is clockwise. |
deg/sec |
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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 |
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