Kevin J. Knox

Controlling Vibration of the Entire Engine Rotating System

Aggressive goals for reliability improvement and noise reduction in compression ignition engines require treatment of all the rotating components as a system. The complex interaction of these components limits the practicality of simulations. Yet, at the same time, the large number of possible designs precludes testing every option. This paper presents a study where simulation is used to characterize rotating components and identify the proper application of solutions, and testing is used to integrate the possibilities in an optimal fashion. The study is done on a heavy-duty compression ignition engine, and includes a fresh look at traditional components (torsional viscoelastic dampers) as well as some novel technologies (pendulums and squeeze dampers).© 2003 ASME