Representing SUV as a 2D beam carrying spring-mass systems to compute powertrain bounce mode Stellantis N.V

Format:

Book

Conference/Event

Author/Creator:

Maddali, Ramakanth, author.

Contributor:

Haider, Syed

Mogal, Akbar Baig

Conference Name:

Noise and Vibration Conference & Exhibition (2021-09-07 : Grand Rapids & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Of the six powertrain rigid body modes, bounce mode is perhaps the most important mode to manage and predict during 4post shake events. In Most OEMs, it is a common practice to compute powertrain rigid body modes in a stand-alone setup. The effect of suspension, body and chassis frame on powertrain rigid body modes are thereby ignored. Consequently, there would be a certain amount of error when powertrain bounce modes are computed. To reduce this error in SUVs, in this paper studies were first conducted using a detailed FE model of a complete SUV (Body on Frame Architecture). Through these studies, it was observed that the powertrain bounce mode computed in a stand-alone setup was lower than the bounce mode computed in an in-vehicle setup. To reduce the error, a simplified two dimensional (2D) FE model of the same complete SUV was then created using FE and classical/theoretical approach. Powertrain bounce mode computed using this simplified 2D FE model was closer to the bounce modes computed in an in-vehicle (Detailed FE model of Complete SUV) setup. The 2D model of the complete SUV can therefore be used in early stages of vehicle development to compute powertrain bounce mode as a stand-alone setup. The paper also provides guidelines for mode management of powertrain bounce mode

Notes:

Vendor supplied data

Publisher Number:

2021-01-1116

Access Restriction:

Restricted for use by site license