Source Path Contribution

In todays competitive automotive industry, it is crucial to quickly and accurately evaluate noise and vibration perceived by vehicle occupants. Today, based on customers expectations, automotive engineers are taking NVH investigations from concept to actual development.

In partnership with leading automotive companies on Source Path Contribution (SPC) technologies, and putting emphasis on usability, data management, and Source Path Receiver model management, Brüel & Kjær has come up with an advanced Source Path Contribution solution.

Drive the Design

This solution not only allows NVH automotive engineers to comprehend and analyse structural and airborne contributions in vehicles, but also to tune and design sound and vibration contributions according to particular design parameters.

Target Cascading

A new user interface coupled to PULSE Data Manager provides a framework for a hierarchical vehicle NVH model that reflects the physical structure. The additional benefit of this approach is that targets can be allocated at each point in the model providing a platform for target cascading and verification.
Source Path Contribution provides NVH automotive engineers with a tool to understand how noise and vibration is transmitted through different paths in and around an automobile and rank any contribution using various NVH methods.

Complete Solutions

Brüel & Kjær offers complete SPC solutions from dedicated transducers for measurement of operating and body characteristics, through instrumentation and signal processing platforms to contribution analysis and vehicle target management.

	The Create Model task focuses on the creation of a Source Path Receiver model in cascading tree format
	Using the Assign Data from Database task, stored spectrum data for an engine mount can be retrieved and inserted in the model. Once inserted, the text in the tree will change to green
	Calculation of data using SPC's matrix inversion tool to view and edit the matrices before inversion
	The Contribution Analysis task allows you to focus on all the noise contributions arriving at a defined receiver. Displays can give clear pictures of any deviations from set targets