Virtual Method for Simulating Driveline Launch Shudder for Solid Axle Suspension Architecture Vehicles 2020-01-1271
Driveline launch shudder is a second-order vibration phenomenon
excited by the driveline system in vehicles. It is experienced as low frequency tactile vibrations at the vehicle seat track and is further
deteriorated by a high torque demand from the engine. These
vibrations are unwanted and affect the vehicle ride quality. A virtual
method has been developed in ADAMS/Car to simulate the driveline
launch shudder event for solid axle suspension architecture vehicles.
Detailed modeling of the full vehicle system with appropriate
boundary conditions has been presented. The simulated driveline
launch shudder event has been quantified in the form of axle windup
and accelerations at the driveline pinion, center bearing and seat track
locations. A physical test correlation case study has been performed
to validate the developed virtual method. This virtual method is also
successfully applied to provide a driveline launch shudder mitigation
enabler to improve vehicle ride performance.
Aditya Vipradas, Abhishek Paul, Kevin Thomson, Dhanasekar Venkatesan
MSC.Software Corporation, FCA US LLC, FCA Engineering India Pvt., Ltd.