Selection and Unintended Consequences of Torsionally Flexible Couplings in Drivelines of Off-Highway Vehicles and Stationary Industrial Units

The procedure for selecting a flexible coupling to suppress driveline torsional vibration from the engine of an off-highway vehicle or stationary industrial unit with a remotely mounted driven unit is widely studied and documented. However, the successful selection of a torsionally flexible coupling in an off-highway vehicle or stationary industrial unit to suppress engine vibration can create new vibration and performance problems in the driveline and driven unit. This paper presents the unintended consequences of utilizing a torsionally flexible coupling, provides descriptive solutions to the unintended consequences and methods to avoid them.