Description / Abstract:
The procedure has been developed to provide a practical method for the
prediction of truck
performance using accepted data. It is designed to help anyone
concerned with the problem of truck
selection.
By following directions, it is possible to determine the necessary
information for intelligent
truck selection without being concerned with the origin or derivation
of the complex factors
involved. With readily available specifications of a truck,
information provided in the tables, and
a minimum of calculation, it is possible to predict:
(a) The performance obtainable from a truck of given characteristics
under given operating
conditions.
(b) The characteristics required in a truck to meet different
performance requirements under given
operating conditions.
Ed. This report comprises a procedure form and 10 tables of data. A
complete explanation of the
truck ability prediction procedure is contained in SAE Technical
Report HS-82, Truck
Ability-Prediction Procedure. Part 1 of HS-82 contains, in addition to
the procedure form and
tables, work sheets and an example. Part 2 demonstrates by practical
examples how to obtain some of
the answers other than grade ability, and presents a detailed
procedure for computing instantaneous
acceleration and the time or distance required to accelerate between
specified limits of speed.
Part 3 gives terminology, the fundamental relations, and the formulas
which form the basis for the
procedure, a discussion of the reliability of factors and methods, and
presents a method for
evaluating the effect of wind on air resistance.