Automating Component NVH Characterization: A Systematic Approach for Component Test Bench Characterization Robert Bosch Automotive Steering LLC

Format:

Book

Conference/Event

Author/Creator:

Sturm, Michael, author.

Wienen, Kevin, author.

Brandstetter, Markus, author.

Sorber, Eric, author.

Corbeels, Patrick, author.

Verrecas, Bart, author.

Gonçalves, Vinícius, author.

Conference Name:

14th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2026-06-17 : Graz, Austria)

Language:

English

Subjects (All):

Electric vehicles.

Test equipment and instrumentation.

Data acquisition and handling.

Vibration.

Steering systems.

Harshness.

Noise.

Noise, Vibration, and Harshness (NVH).

Suppliers.

Production.

Local Subjects:

Electric vehicles.

Test equipment and instrumentation.

Data acquisition and handling.

Vibration.

Steering systems.

Harshness.

Noise.

Noise, Vibration, and Harshness (NVH).

Suppliers.

Production.

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Vehicle electrification and accelerated development cycles create a need for virtual Noise, Vibration and Harshness (NVH) development tools which are fast, precise and, seamlessly interchangeable between development sites, suppliers and OEMs. Component-based Transfer Path Analysis (C-TPA), standardized in ISO 20270:2019, enables independent component characterization and integration with virtual models to predict sound and vibration in new assemblies, referred to as Virtual Prototype Assemblies (VPA). However, conventional measurements are labor-intensive, typically restricted to a small number of samples, and overlook production variability. This paper introduces a fully automated, ISO 20270-compliant C-TPA system for non-rigid test benches, featuring a pre-instrumented test fixture with multiple vibration shakers and sensors automatically linked to a data acquisition system for immediate processing. Components can be characterized within minutes, with blocked forces directly integrated into a VPA workflow, replacing time-intensive in-vehicle testing with a repeatable, operator-independent bench procedure. A case study on an automotive steering system demonstrates the method's accuracy, repeatability, and efficiency, along with its ability to predict realistic interior sound pressure levels and capture production variability, enabling robust virtual NVH evaluation early in the development cycle

Notes:

Vendor supplied data

Access Restriction:

Restricted for use by site license