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Optimal Placement of Active Bars for Buckling Control in Truss Structures under Bar Failures

Gally, Tristan ; Kuttich, Anja ; Pfetsch, Marc E. ; Schaeffner, Maximilian ; Ulbrich, Stefan (2022)
Optimal Placement of Active Bars for Buckling Control in Truss Structures under Bar Failures.
In: Applied Mechanics and Materials, 2018, 885
doi: 10.26083/tuprints-00020432
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Optimal Placement of Active Bars for Buckling Control in Truss Structures under Bar Failures
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2018
Publisher: Trans Tech Publications Ltd.
Journal or Publication Title: Applied Mechanics and Materials
Volume of the journal: 885
DOI: 10.26083/tuprints-00020432
Corresponding Links:
Origin: Secondary publication service

Buckling of slender bars subject to axial compressive loads represents a critical design constraint for light-weight truss structures. Active buckling control by actuators provides a possibility to increase the maximum bearable axial load of individual bars and, thus, to stabilize the truss structure.For reasons of cost, it is in general not economically viable to use such actuators in each bar of the truss structure. Hence, it is an important practical question where to place these active bars. Optimized structures, especially when coupled with active elements to further decrease the number of necessary bars, however, lead to designs, which, while cost-efficient, are especially prone to bardamages, caused, e.g., by material failures. Therefore, this paper presents a mathematical optimization approach to optimally place active bars for buckling control in a way that secures both buckling and general stability constraints even after failure of any combination of a certain number of bars. This allows us to increase the resilience of the system and guarantee stable behavior even in case of failures.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-204326
Additional Information:

Keywords: Active Buckling Control, Actuator Placement, Resilience, Truss Topology Design

Classification DDC: 500 Science and mathematics > 510 Mathematics
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Research group System Reliability, Adaptive Structures, and Machine Acoustics (SAM)
04 Department of Mathematics > Optimization
Date Deposited: 02 Feb 2022 13:58
Last Modified: 22 Mar 2023 14:20
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20432
PPN: 506188477
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