Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Indeterminate Structure01:18

Indeterminate Structure

541
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium.  Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...
541
Internal Loadings in Structural Members: Problem Solving01:28

Internal Loadings in Structural Members: Problem Solving

1.3K
When designing or analyzing a structural member, it is important to consider the internal loadings developed within the member. These internal loadings include normal force, shear force, and bending moment. Engineers can ensure that the structural member can support the applied external forces by calculating these internal loadings.
To illustrate this, let's consider a beam OC of 5 kN, inclined at an angle of 53.13° with the horizontal and supported at both ends. Determine the internal...
1.3K
Modes of Standing Waves - I01:03

Modes of Standing Waves - I

2.9K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
2.9K
Stability of structures01:14

Stability of structures

175
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
175
Deformation of a Beam under Transverse Loading01:15

Deformation of a Beam under Transverse Loading

298
Understanding beam deflection, particularly for indeterminate beams with overhanging segments and multiple concentrated loads, is crucial for ensuring structural integrity and functionality. The process begins with constructing an accurate free-body diagram, which helps identify the forces and moments acting on the beam. This diagram is vital for visualizing how bending moments vary along the beam's length, influencing its curvature.
The insights from the bending moment diagram extend to...
298
Physical Pendulum01:06

Physical Pendulum

1.7K
When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
1.7K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Topological elastic metamaterials for wave manipulation: a comprehensive review.

Journal of physics. Condensed matter : an Institute of Physics journal·2025
Same author

Improved global 250 m 8-day NDVI and EVI products from 2000-2021 using the LSTM model.

Scientific data·2023
Same author

Dual-mode fluorescence and colorimetric sensing of sulfide anion in natural water based on near-infrared Ag<sub>2</sub>S quantum dots and MnO<sub>2</sub> nanosheets complex.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2023
Same author

Exploring the mechanism of norfloxacin removal and active species evolution by coupling persulfate activation with biochar hybridized Fe<sub>3</sub>O<sub>4</sub> composites.

Chemosphere·2023
Same author

The switch of the DNA tetrahedral tweezers controlled by mercury ions.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2023
Same author

In Situ Dual-Interface Passivation Strategy Enables The Efficiency of Formamidinium Perovskite Solar Cells Over 25.

Advanced materials (Deerfield Beach, Fla.)·2023

相关实验视频

Updated: Jul 10, 2025

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

8.8K

基于物理的深度学习用于结构振动识别及其在基准结构上的应用.

Minte Zhang1, Tong Guo1, Guodong Zhang1

  • 1School of Civil Engineering, Southeast University, Nanjing 210096, People's Republic of China.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
|November 19, 2023
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的基于物理的深度学习 (PIDL) 框架,用于结构振动识别. PIDL将深度学习与结构动态相结合,提高了用于民用结构监测的激发和参数识别的准确性.

关键词:
显式时间域方法.生成型的深度学习基于物理的深度学习.结构健康监测 结构健康监测结构振动识别 结构振动识别

更多相关视频

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines
08:27

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Published on: January 5, 2024

1.1K
Data Acquisition Protocol for Determining Embedded Sensitivity Functions
07:46

Data Acquisition Protocol for Determining Embedded Sensitivity Functions

Published on: April 20, 2016

6.2K

相关实验视频

Last Updated: Jul 10, 2025

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

8.8K
Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines
08:27

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Published on: January 5, 2024

1.1K
Data Acquisition Protocol for Determining Embedded Sensitivity Functions
07:46

Data Acquisition Protocol for Determining Embedded Sensitivity Functions

Published on: April 20, 2016

6.2K

科学领域:

  • 土木工程 土木工程是指土木工程.
  • 机器学习 机器学习
  • 结构动力学 结构动力学

背景情况:

  • 结构振动识别对于土木工程至关重要,它依赖于传感器数据.
  • 在没有监测的地点和有限的数据中预测响应是具有挑战性的.
  • 目前的深度学习方法很难将物理定律纳入振动分析中.

研究的目的:

  • 为结构振动识别提供一种新的基于物理的深度学习 (PIDL) 框架.
  • 将深层次的生成网络与结构动态知识相结合.
  • 提高民用结构中振动分析的准确性和可靠性.

主要方法:

  • 开发了一个PIDL框架,集成一个卷积神经网络和一个基于物理的变化自编码器.
  • 使用显式时间域 (ETD) 分析与生成的单位冲动响应 (UIR) 信号.
  • 将ETD方法辅助的卷积函数纳入UIR信号对齐的损失函数中.

主要成果:

  • PIDL框架有效地提取了与物理相关的动态特征.
  • 在各种损伤模式中,精确识别了激发信号和潜在物理参数.
  • 与传统的深度学习方法相比,证明了更好的准确性和可靠性.

结论:

  • 该PIDL框架成功地将结构动态知识整合到用于振动分析的深度学习中.
  • 该研究强调了PIDL在建筑结构监测和健康评估中的潜力.
  • 这项研究通过结合基于物理的机器学习来推进结构振动识别.