Estimation of Design Parameters of the Crank-Connecting Rod Mechanism of Engines for Mobile Agricultural Machines

An accurate choice of the design model crank-connecting rod mechanism piston internal combustion engines affects accuracy calculation results and their complexity. At present, most scientists technicians choose a two-mass to analyze operation crankconnecting mechanism. The considers only rotational reciprocating movements two masses, which are connected by rigid weightless rod. This significantly simplifies calculations, neglects elastic deformations parts mechanism, eliminates need for compiling equations dynamics in partial derivatives. However, has number drawbacks. obtained using exhibit significant errors, mainly depend on features connecting assembly. paper discusses multi-mass models, where assembly can comprise several lumped masses located along its length. In this case, plane-parallel motion these is added. have absolutely bonds. Forces moments acting crank calculated according compiled. Comparison with be used determine errors that provides required accuracy. considered interest engineers engaged engines.