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Ritter, Markus and Cesnik, Carlos E. S. (2016) Large Deformation Modeling of a Beam Type Structure and a 3D Wingbox using an Enhanced Modal Approach. In: 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 4.-8. Januar 2016, San Diego. DOI: 10.2514/6.2016-1708
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Abstract
A recently developed modal-based method that captures the geometric nonlinear ef- fects that arise in the regime of large deformations of wing-like structures is applied to the modeling of a highly flexible beam structure and a 3D wingbox configuration. The method features quadratic and cubic stiffness terms and calculates the nodal deformation field not only by normal modes but also by additional mode components up to fourth or- der. Thus, both a nonlinear force-displacement relationship and a geometrically nonlinear displacement field are accounted for. Static and dynamic results for the two configurations are presented together with results from a commercial finite element solver and from the UM/NAST aeroelastic solver from the University of Michigan. The numerical study high- lights the capability of the method to capture the nonlinear effects and demonstrates its power to model a 3D wingbox structure made of shell elements with anisotropic material characteristics.
| Item URL in elib: | https://elib.dlr.de/102741/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||
| Title: | Large Deformation Modeling of a Beam Type Structure and a 3D Wingbox using an Enhanced Modal Approach | |||||||||
| Authors: |
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| Date: | 8 January 2016 | |||||||||
| Journal or Publication Title: | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| DOI : | 10.2514/6.2016-1708 | |||||||||
| Status: | Published | |||||||||
| Keywords: | Large Deformations, Composite Structures, Nonlinear Aeroelasticity, Nonlinear Structural Dynamics, Aeroelasticity | |||||||||
| Event Title: | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference | |||||||||
| Event Location: | San Diego | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 4.-8. Januar 2016 | |||||||||
| Organizer: | AIAA SciTech | |||||||||
| 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 - Flexible Aircraft (old) | |||||||||
| Location: | Göttingen | |||||||||
| Institutes and Institutions: | Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design | |||||||||
| Deposited By: | Ritter, Markus Raimund | |||||||||
| Deposited On: | 12 Feb 2016 11:51 | |||||||||
| Last Modified: | 10 May 2016 23:44 |
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