A powerful Lichtenberg Optimization Algorithm: A damage identification case study

Pereira, João Luiz Junho; Francisco, Matheus Brendon; Cunha, Sebastião Simões da; Gomes, Guilherme Ferreira

doi:10.1016/j.engappai.2020.104055

Cited by 44 publications

(15 citation statements)

References 38 publications

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“…For this reason, it has been the most used to identify localized damage. It has greater sensitivity to structural damage and provides detailed information about the extent and location of it (Pereira et al, [2021]; Gomes et al [2018]).…”

Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

“…In delamination case, for example, the stiffness matrix is the only one affected and according to Pereira et al [2021], the variation in the i-th mode shape is in Equation (3):…”

Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

“…Using FEM, the variation of the global stiffness matrix is simplified as shown Equation (4). Many authors have used this equation to represent delaminations (PEREIRA et al [2021]; GOMES et al, [2020b]).…”

Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

“…Efficient systems, such as Structural Health Monitoring (SHM) or Health and Usage Monitoring Systems (HUMS), allow early identification of damage through non-destructive inspection and integrated sensors exploring vibration/modal measures. The method is based on the principle that a damaged in a structure changes natural frequencies, mode shapes, modal strain energy and damping ratios (Gomes et al [2020]; Pereira et al [2021]).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Pereira¹,

Francisco²,

Jorge³

et al. 2022

Uncertainty Modeling: Fundamental Concepts and Models

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This chapter describes the importance of one of the major areas within Structural HealthMonitoring and Health and Usage Monitoring Systems: Sensor Placement Optimization (SPO). In this sense, the most important SPO metrics are presented and discussed with the reader. The methodological procedure of the optimization problem statement is also considered and discussed. he significance of rotary-wing aircraft, damages that can occur in the blade, works related to damage identification, modern methods and algorithms that have been used in this context, and a comprehensive SPO study for a helicopter main rotor blade will be presented. Finally, a new technique that considers the number of sensors as an objective associated with some of the main metrics used in SPO. The technique uses the Multiobjective Lichtenberg Algorithm and Feature Selection, an important area used in Data Mining.

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Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

“…In delamination case, for example, the stiffness matrix is the only one affected and according to Pereira et al [2021], the variation in the i-th mode shape is in Equation (3):…”

Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

Section: Damage Monitoring Using Modal Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sensor Placement Optimization of a Helicopter Main Rotor Blade

Pereira¹,

Francisco²,

Jorge³

et al. 2022

Uncertainty Modeling: Fundamental Concepts and Models

Self Cite

View full text Add to dashboard Cite

show abstract

“…Mishra et al [36] compared the performance of 10 optimization algorithms in vibrational response in large scale unique trusses. And several new optimization algorithms were used to solve the damage identification problems [37][38][39][40][41][42]. presented an approach for damage identification based on improved ANN and damage indicator.…”

Section: Introductionmentioning

confidence: 99%