D9.3 Scalable and Automatic Dynamic Excitation of Non-Linear Structures

Event
SMSI 2021
2021-05-03 - 2021-05-06
digital
Band
SMSI 2021 - Measurement Science
Chapter
D9 Applications II
Author(s)
P. Blaschke, D. Alarcón - Technische Hochschule Wildau, Wildau (Germany)
Pages
287 - 288
DOI
10.5162/SMSI2021/D9.3
ISBN
978-3-9819376-4-0
Price
free

Abstract

The mathematical foundations of modal analysis assume material linearity and time invariance on a tested structure. This is, however, rarely the case in a real modal test. Complex structures often present bolted or threaded connections, or assemblies with multiple material interfaces. These connections induce non-linear force/response relationships in the structures, which hinder the application of traditional modal excitation methods. The proposed Scalable Automatic Modal Hammer (SAM) allows testing complex structures at single force/response points for a precise material characterization.

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