Quoc-Bao Ta, Quang-Quang Pham, Ngoc-Lan Pham, Thanh-Canh Huynh, Jeong-Tae Kim
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引用次数: 0
Abstract
A 1-dimensional convolutional neural network (1D CNN) model is developed to process deep learning of raw impedance signals for smart aggregate (SA)-based concrete stress monitoring. First, the framework of the SA-based stress monitoring using deep learning of raw impedance signals is described. An impedance measurement model is designed for a SA-embedded concrete body under compression. A 1D CNN model is developed for deep learning of raw impedance signals corresponding to various stress levels. Three approaches for concrete stress monitoring are designed to deal with data availability, signal noises, and untrained stress levels. Second, a few SA-embedded concrete cylinders are experimented to measure impedance signals under various stress levels. Finally, the performance of the proposed method is extensively evaluated by investigating the feasibility of the K-fold cross-validation to deal with the data availability and the effects of signal noises and untrained data on the accuracy of stress estimation in the SA-embedded concrete cylinders.
开发了一种一维卷积神经网络(1D CNN)模型,用于处理原始阻抗信号的深度学习,以实现基于智能骨料(SA)的混凝土应力监测。首先,介绍了利用原始阻抗信号深度学习进行基于 SA 的应力监测的框架。为受压的嵌入 SA 的混凝土体设计了阻抗测量模型。开发了一维 CNN 模型,用于深度学习与各种应力水平相对应的原始阻抗信号。针对数据可用性、信号噪声和未经训练的应力水平,设计了三种混凝土应力监测方法。其次,对几个嵌入 SA 的混凝土圆柱体进行了实验,以测量各种应力水平下的阻抗信号。最后,通过研究 K 倍交叉验证处理数据可用性的可行性,以及信号噪声和未经训练的数据对 SA 嵌入式混凝土圆柱体应力估计精度的影响,广泛评估了所提方法的性能。
期刊介绍:
The Journal Structural Control and Health Monitoring encompasses all theoretical and technological aspects of structural control, structural health monitoring theory and smart materials and structures. The journal focuses on aerospace, civil, infrastructure and mechanical engineering applications.
Original contributions based on analytical, computational and experimental methods are solicited in three main areas: monitoring, control, and smart materials and structures, covering subjects such as system identification, health monitoring, health diagnostics, multi-functional materials, signal processing, sensor technology, passive, active and semi active control schemes and implementations, shape memory alloys, piezoelectrics and mechatronics.
Also of interest are actuator design, dynamic systems, dynamic stability, artificial intelligence tools, data acquisition, wireless communications, measurements, MEMS/NEMS sensors for local damage detection, optical fibre sensors for health monitoring, remote control of monitoring systems, sensor-logger combinations for mobile applications, corrosion sensors, scour indicators and experimental techniques.