Frequency-Based Substructuring for Virtual Prediction and Uncertainty Quantification of Thin-Walled Vehicle Seat Structures BMW Group

Format:

Book

Conference/Event

Author/Creator:

Wagner, Philipp, author.

Contributor:

Langer, Patrick

Mäder, Marcus

Marburg, Steffen

Conference Name:

13th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2024-06-19 : Graz, Austria)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

Dynamic substructuring enables the dynamic behavior analysis of intricate systems. In this context, the precise description of individual subsystem interfaces is crucial. Coupling components through virtual points is suitable, especially when it comes to experimental substructuring. The complex contact situations that arise from joint descriptions in thin-walled structures, like those found in vehicle seats, present a challenging task. This investigation aims to visualize the complex coupling of thin-walled structures by applying the virtual point transformation. Individual subsystems are analyzed through experiments and coupled using the Lagrange multiplier frequency-based substructuring to achieve this goal. For validation purposes, a completely assembled vehicle seat has been investigated. Identification of the connecting elements between the substructures is achieved using decoupling techniques. As a result, the stiffness of the sleeve can be determined through various approaches to decoupling and measurement configurations. However, the transfer functions obtained tend to be overestimated, especially for thin-walled structures. One of the main conclusions highlights the correlation between the number of virtual points and the resulting accuracy of the coupled transfer function results

Notes:

Vendor supplied data

Publisher Number:

2024-01-2946

Access Restriction:

Restricted for use by site license