Synergy of Methods in Structural Dynamics: Transfer Path- and Modal Analysis HEAD acoustics GmbH

Format:

Book

Conference/Event

Author/Creator:

Wegerhoff, Matthias, author.

Contributor:

Brücher, Haiko

Kamper, Tim

Sottek, Roland

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:

Since NVH is always a property of the whole system, one must have a deep understanding of the dependencies and all the components that interact. The well known in-situ TPA provides methods to separate different components of an acoustical system such as source and receiver. The source including excitation and structural dynamics of the exciting subsystem can be described independently of the structural dynamics of the receiving structure by means of the in-situ blocked forces. The Modal Analysis is a common method as well and aims on identifying the structural dynamics of a structure. This paper addresses the combination of both methods using the example of an e-drive of an electric car, which has been analyzed on a test rig. The combination of Modal Analysis and TPA yields in a better under-standing of the system and its dependencies. The correlation of the results of both the methods can be used to gain important insights regarding the source-description. Thus, this paper demonstrates how to use synergies and get the most out of state-of-the-art methods in the field of structural dynamics, using a real live engineering problem

Notes:

Vendor supplied data

Publisher Number:

2021-01-1090

Access Restriction:

Restricted for use by site license