The reason of the crash was said by the same Jorge Lorenzo in the cold tyres “It was very difficult to warm up the tires and get used to the new feeling with the slick” “I did not pay attention to that corner that is left after many on the right. There must also be careful with the dry.”
But because the crash occurred at that point of the
track, after he had completed nearly a lap and the tires
albeit slightly they would have to be warmer than the
first corners after the exit of the pits? Only driving error or there
also a technical explanation?
We see with our software SET-UP Bike and to our
model for the calculation of the temperature of the tyres,
to understand more. |
 |
| Insert into the software
in addition to the technical data of a MotoGP bike, weight and height of Jorge
Lorenzo, and the quantity indicative of liters of gasoline remained
in the lap of the crash. |
 |
 |
 |
 |
|
 |
Now we have to set the
grip level that there was at that moment on the track, for this we refer at the time made from Marquez in the lap after him pit-stop, which took place two laps before of that of Lorenzo, and we set in the software a grip that allows to
virtual rider to do a time equal to that by Marquez
on the first lap after the pit exit. |
 |
|
At this point we can start the simulation. |
From the results calculated by SET-UP Bike for first we look at theperformance
analysis, which shows us what limits the performance in the
various points of the track.
At the point where the crash occurred, just begins the change of
direction after hairpin right, the problem becomes
adherence, then regardless of the temperature of the tires
this is in itself already a critical area.
|
 |
| But let's see what happens
to the temperature of the tires during the lap.
We use our calculation model and given that
depending on the lean angle, work different parts
of the tyres, analyze what happens to the temperature
the tire into three distinct areas, the left side,
the middle and the right. |
 |
|
 |
From the analysis of
average surface temperature in the three zones is seen in
very clearly that in the point of the crash, the side
left of the tyre reaches its lowest temperature
compared to all the other points of the circuit,
then as soon as Jorge Lorenzo has performed the change of
direction and then began working the left side
of the tyre, he found himself with tyre temperatures
many lower compared to a few meters before
where the tyre worked on the right side and at the middle.
|
 |
 |
Since as is it is known the tires offer a different grip according
their temperature, as soon as Jorge Lorenzo has performed the
change of direction has found a grip sharply lower
and hence the loss of adherence was clear and not
controllable.
So certainly there was the error, but it was mainly in
overlook this technical aspect very significant until the
tires did not reach a temperature that will mitigate
the problem. |
|
|
From this analysis it is clear that sometimes behind a mistake
there is a technical explanation that can help us to understand
it, but it is equally clear that today with the
technology and software appropriate you may have some
informations in advance that can help rider and team to avoid
mistakes that could be very importants! |
