Heinze, Christoph and Sinapius, Michael and Wierach, Peter (2014) Lamb Wave Propagation in Complex Geometries - Model Reduction with Approximated Stiffeners. In: 7th European Workshop on Structural Health Monitoring, pp. 1655-1661. EWSHM 2014, 08.-11. Jul. 2014, Nantes, Frankreich.
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Abstract
Aviation companies show great interest in Structural Health Monitoring (SHM) systems. Although noticeable effort has been put into this research field, so far no system is ready for industrial use. One of the major issues is the processing of complex signals caused by complex aerospace structures. Numerical simulations can help to comprehend these signals, but are often unable to cope with the model detail required. A ray tracing algorithm to approximate Lamb wave propagation is proposed, which enables a huge model reduction. The resulting minimal model mainly consists of the border lines of areas with different geometrical or material properties. Finite element simulations are used to determine the interaction behavior of these transition zones. A two stage concept is used to find paths from an actuator to a sensor and calculate time signals.
Item URL in elib: | https://elib.dlr.de/90323/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | Lamb Wave Propagation in Complex Geometries - Model Reduction with Approximated Stiffeners | ||||||||||||
Authors: |
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Date: | 8 July 2014 | ||||||||||||
Journal or Publication Title: | 7th European Workshop on Structural Health Monitoring | ||||||||||||
Refereed publication: | No | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Page Range: | pp. 1655-1661 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | SHM, Lamb waves, minimal model, ray tracing, anisotropic material | ||||||||||||
Event Title: | EWSHM 2014 | ||||||||||||
Event Location: | Nantes, Frankreich | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 08.-11. Jul. 2014 | ||||||||||||
Organizer: | Inria-IFSTTAR-UnivNantes | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Aeronautics | ||||||||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||
DLR - Research theme (Project): | L - Structures and Materials (old) | ||||||||||||
Location: | Hamburg | ||||||||||||
Institutes and Institutions: | Institute of Composite Structures and Adaptive Systems > Multifunctional Materials | ||||||||||||
Deposited By: | Heinze, Christoph | ||||||||||||
Deposited On: | 01 Sep 2014 09:32 | ||||||||||||
Last Modified: | 31 Jul 2019 19:47 |
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