Sensor placement for structural damage identification by means of topology optimization
The success of virtually all structural health monitoring (SHM) methods depends on the information content of the measurements, and thus on the placement of the available sensors. This paper presents an efficient method for finding optimal sensor distribution over structural system with many degrees...
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| creator | Błachowski, Bartłomiej Ostrowski, Mariusz Tauzowski, Piotr Świercz, Andrzej Jankowski, Łukasz |
| description | The success of virtually all structural health monitoring (SHM) methods depends on the information content of the measurements, and thus on the placement of the available sensors. This paper presents an efficient method for finding optimal sensor distribution over structural system with many degrees of freedom (DOFs). The objective function is based on the classical Fisher information matrix. Originally, this yields a computationally hard discrete optimization problem. However, the proposed numerical solution method is based on a concept taken from structural topology optimization, where a discrete optimization problem is replaced with a continuous one. Two numerical examples demonstrate the effectiveness of the proposed methodology. These are a 5-bay truss with 24 DOFs and a two-story frame structure whose finite element model has been condensed to 14 DOFs. |
| doi_str_mv | 10.1063/5.0007817 |
| format | Conference Proceeding |
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| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2020, Vol.2239 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
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| source | AIP Journals Complete |
| subjects | Damage detection Finite element method Fisher information Frame structures Mathematical analysis Optimization Placement Structural damage Structural health monitoring Topology optimization |
| title | Sensor placement for structural damage identification by means of topology optimization |
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