粒子群优化
水准点(测量)
算法
前馈神经网络
计算机科学
混合算法(约束满足)
人工神经网络
结构健康监测
计算智能
前馈
群体智能
遗传算法
人工智能
工程类
机器学习
控制工程
概率逻辑
约束逻辑程序设计
约束满足
大地测量学
结构工程
地理
作者
Long Viet Ho,Duong Huong Nguyen,Mohsen Mousavi,Guido De Roeck,Thanh Bui-Tien,Amir H. Gandomi,Magd Abdel Wahab
标识
DOI:10.1016/j.compstruc.2021.106568
摘要
Finite element (FE) based structural health monitoring (SHM) algorithms seek to update structural damage indices through solving an optimisation problem in which the difference between the response of the real structure and a corresponding FE model to some excitation force is minimised. These techniques, therefore, exploit advanced optimisation algorithms to alleviate errors stemming from the lack of information or the use of highly noisy measured responses. This study proposes an effective approach for damage detection by using a recently developed novel swarm intelligence algorithm, i.e. the marine predator algorithm (MPA). In the proposed approach, optimal foraging strategy and marine memory are employed to improve the learning ability of feedforward neural networks. After training, the hybrid feedforward neural networks and marine predator algorithm, MPAFNN, produces the best combination of connection weights and biases. These weights and biases then are re-input to the networks for prediction. Firstly, the classification capability of the proposed algorithm is investigated in comparison with some well-known optimization algorithms such as particle swarm optimization (PSO), gravitational search algorithm (GSA), hybrid particle swarm optimization-gravitational search algorithm (PSOGSA), and grey wolf optimizer (GWO) via four classification benchmark problems. The superior and stable performance of MPAFNN proves its effectiveness. Then, the proposed method is applied for damage identification of three numerical models, i.e. a simply supported beam, a two-span continuous beam, and a laboratory free-free beam by using modal flexibility indices. The obtained results reveal the feasibility of the proposed approach in damage identification not only for different structures with single damage and multiple damage, but also considering noise effect.
科研通智能强力驱动
Strongly Powered by AbleSci AI