ENGDYN - connecting-rod analysis

ENGDYN applications

Connecting-rod analysis

ENGDYN’s simulation capabilities incorporate a range of connecting-rod models from a simplified rigid representation through to fully three-dimensional compliant or dynamic models. By default, ENGDYN simply applies loads to the crank-pin and cylinder assuming primary motion. In order to consider the dynamic interaction with the crankshaft, and for analyzing bearing behaviour due to dynamic loading, the ENGDYN model can be extended to include a dynamic model of the connecting rod at each cylinder. As with the cylinder-block studies, all of the tools required to incorporate the three-dimensional models are included within the ENGDYN environment, and the finite element analysis (FEA) interface tool allows a user to easily apply the ENGDYN results as boundary conditions for further structural analyses.

Specific connecting-rod applications

  • Dynamic interaction between the connecting rod and crankshaft
  • Big-end- and small-end-bearing analysis, including EHL analysis
  • Bearing distortion
  • Connecting-rod durability

Key features

  • Quasi-static and dynamic analysis
  • Hierarchy of model types, including rigid, compliant and dynamic models, and half models for symmetric rods
  • Integrated FEA interface for matrix reduction

Relevant publications