Dear Sir or Madam,
In my project on pig postural stability during lorry transport a major problem is
that the lorry does not - as a train would do - follow the exact line of a curve
in the middle of the lane. So although I know the radius, length and angle of
every curve on the way and the acceleration in xyz direction, it is very hard to
figure out the reasons for high or low jerk values (jerk = rate of change of
acceleration).
As far as I understand one aim the driver follows is to make sure that the whole
vehicle (a drawler, length about 17 m) goes safely round the corner.
Another aspect is to keep y-acceleration as low as possible to keep centrifugal
force as low as possible.
Did anybody do research on the exact way a lorry takes in a curve?
And what makes the driver choose this way?
What is the influence of radius?
At a given radius, how does the angle (whether the change of direction is 30° or
90°) influence driving behaviour?
How could or should the driver of an animal transporter take a corner in order to
keep the jerk low and the pigs from toppling then?
With best wishes.
Yours sincerely
Stephanie Gragert
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Stephanie Gragert
(PhD student at Leipzig university, faculty of veterinary science, Germany)
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