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.