Active Path Tracking - A New Analysis Tool for Vehicle Noise AVL LIST GmbH, Graz, Austria

Format:

Conference/Event

Author/Creator:

Rust, A., author.

Conference Name:

SIAT 2001 (2001-01-10 : Pune, India)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Pune, MH The Automotive Research Association of India 2001

Summary:

The effective identification and control of powertrain structure borne harmonic noise is a key to achieve a desired noise quality profile in a vehicle. Much work is being done in this field to refine and develop sound engineering techniques suitable for application at each stage of a vehicle development programme.For prototype development and trouble shooting, transfer path analysis and source identification techniques are in use today with varying degrees of success and application complexity. Investigation tools which are fast, do not require extensive vehicle dismantling and yet provide reliable answers, will be of value to the NVH and sound quality engineer.A new Active Path Tracking method is described which is relatively quick and offers practical confirmation of the influence of identified paths. The method involves the novel adaptation of Active Noise Cancellation techniques to the task of source identification. Powertrain mount input forces are derived and their relative importance ranked based upon their ability to recreate the operational sound field under investigation

Notes:

Vendor supplied data

Publisher Number:

2001-26-0045

Access Restriction:

Restricted for use by site license