The components attached to the crankshaft of an internal
combustion engine are under variable cyclic loads due to the engine
cycle, combustion forces and pistons and conrods reciprocating
movements, and the description of the forces is important to the
right development of rotating components.
The multi-body method is largely used in the automotive industry
to obtain loads where dynamic effects are involved. The high costs
and difficulty involved in obtaining experimental data of this kind
of loads are the main reason of using this method. This way, the
multi-body method is an important tool in the project of rotating
components.
The objective of this work is to show a calculation methodology
using the multi-body method to obtain the stresses on a diesel
engine radiator fan bracket under the crankshaft torsional
vibration and other acting loads.
The virtual analysis of this component and its correlation with
the experimental model allows the method validation, leading to
development costs and time reduction.