Weight (mass) distribution formula
- From: "Yanick Poirier" <ypoirier@xxxxxxxxxxx>
- Date: Tue, 8 Apr 2008 00:00:56 -0400
Hi everyone,
I'm not sure if I'm posting in the right newsgroup, but it's my best guess.
Here's my problem: I'm writing a software program to calculate the load
distribution of a cargo on a truck or truck/trailer combination. The main
requirement is the program must be able to calculate the total weight on
each and every axle of the vehicule no matter where the load is placed on
the vehicule. US and Canada have different regulation regarding the maximum
gross weight as well as per axle load weight. For example, in US the
standard is 80000lbs gross for a regular 18-wheeler where maximums for the
streering, drive and trailer axles are, respectively 12000lbs, 34000lbs and
34000lbs.
Now, let say that the truck and trailer have a total empty weight of
35000lbs (also called the tare weight) and the payload is 1 big piece of
rock that weight 30000lbs. So now your gross weight is 65000lbs which is
perfectly legal, unless the rock is misplaced on the trailer. If the rock is
place all the way to the front of the trailer, chances are that the total
weight on the drive axles will exceed the 34000lbs limit; which makes it an
illegal load.
So all this to lead to the following question:
Can anyone give a lead to where (Internet, books, etc) I can find some
information on how to make such calculation. I know for instance that the
following information are needed for such calculation: truck length, trailer
length, position of the king-pin, position of the fifth-wheel, axle spacing
and the position of the fuel tanks. Yes it does matter: 300 gallons of
diesel weight over 2000lbs!
Any help or hint would be greatly appreciated as I'm scratching my head for
a coupling week now with no success at all.
Yanick.
.
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