Utilizing Engine Dyno Data to build NVH Simulation Models for Early Rapid Prototyping Hottinger Brüel and Kjær

Format:

Book

Conference/Event

Author/Creator:

Thom, Brian, author.

Contributor:

Newton, Gary

Radic, Nebojša

Rengarajan, Revathi

Singh, Vinod

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:

As the move to decrease physical prototyping increases the need to virtually prototype vehicles become more critical. Assessing NVH vehicle targets and making critical component level decisions is becoming a larger part of the NVH Engineers job. To make decisions earlier in the process when prototypes are not available companies need to leverage more both their historical and simulation results. Today this is possible by utilizing a hybrid modelling approach in an NVH Simulator using measured on road, CAE, and test bench data.By starting with measured on road data of a previous generation or comparable vehicle engineers can build virtual prototyping by using a hybrid modeling approach incorporating CAE and/or test bench data to create the desired NVH characteristics. This enables a virtual drive to assess subjectivity the vehicles acoustic targets before a prototype vehicle is available. This approach can also be used with (pre)prototype powertrain, exhaust, or intake systems. To create drivable NVH models for target setting, source level and path sensitivities are required. While this can typically be a limiting factor without a prototype vehicle the hybrid model approach allows for flexibility. This flexibility comes from the fact that any combination of on road data, CAE, or test bench data can be utilized to build the model. Once a model is assembled it is possible to assess "what if" scenarios to determine targets or do A-to-B comparisons of different sub-systems. This can be completed by applying filters to already assembled contributions or adding CAE or test bench data for new parts. This paper will share an example of how using an NVH simulator a powertrain subsystem was able to be substituted into a different vehicle virtually and made it possible to drive and assess subjectively as a way to identify NVH concerns at an early stage. This was done by creating a source/path/contribution model and including where needed simulation data from CAE

Notes:

Vendor supplied data

Publisher Number:

2021-01-1069

Access Restriction:

Restricted for use by site license