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Source/Documentation/Manual/physics.rst

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@@ -254,7 +254,16 @@ simplicity, only one axle model is computed (and animated). A tilting
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feature and the independent axle adhesion model will be introduced in the
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future.
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The heart of the model is the slip characteristics (picture below).
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The advanced adhesion model uses two alternate algorithims to calculate the
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wheel adhesion. The first model is based upon an algorithim by Pacha, whilst the second
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uses an algorithim developed by Polach. The Polach algorithim provides
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a more accurate outcome and facilitates the future inclusion of track conditions.
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However it is more CPU load intensive then the Pacha one. This can produce low
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frame rates for the screen display. Hence OR automatically sense the CPU load,
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and switches to the Pacha algorithim at high loads and to the Polach algorithim
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under lower CPU loads.
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The heart of the adhesion algorithim is the slip characteristics (pictured below).
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.. image:: images/physics-adhesion-slip.png
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:align: center

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