Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

303
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
303
Bending of Curved Members - Strain Analysis01:14

Bending of Curved Members - Strain Analysis

136
The mechanics of deformation in curved members, such as beams or arches, under bending moments, involve complex responses. When such a member, symmetric about the y-axis and shaped like a segment of a circle centered at point C, is subjected to equal and opposite forces, its curvature and surface lengths change significantly. This alteration results in the shift of the curvature's center from C to C', indicating a tighter curve.
The important part of bending analysis for such a member...
136
Bending of Curved Members - Neutral Surface01:16

Bending of Curved Members - Neutral Surface

179
In curved beams, unlike straight beams, the stress distribution across the cross-section is not uniform due to the beam's curvature. This non-uniformity arises because the neutral axis, where stress is zero, does not align with the centroid of the section. In a curved beam, the strain varies along the section as a function of the distance from the neutral axis.
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within...
179
Deformations in a Symmetric Member in Bending01:18

Deformations in a Symmetric Member in Bending

166
When analyzing the deformation of a symmetric prismatic member subjected to bending by equal and opposite couples, it becomes clear that as the member bends, the originally straight lines on its wider faces curve into circular arcs, with a constant radius centered at a point known as Point C. This phenomenon helps to understand the stress and strain distribution within the member more clearly.
When the member is segmented into tiny cubic elements, it is observed that the primary stress...
166
Convergent Evolution01:54

Convergent Evolution

27.7K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
27.7K
Lift01:23

Lift

117
Lift is a fundamental aerodynamic force that acts perpendicular to the direction of airflow. It plays a central role in achieving and sustaining flight and in stabilizing various vehicles. Lift primarily originates from pressure differences created across surfaces, such as an airfoil. A lower pressure region forms above the wing, while a higher pressure region forms below it, generating an upward force. This differential results from the shape and orientation of the airfoil, enabling the wing...
117

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Grassland ecology system: A critical reservoir and dissemination medium of antibiotic resistance in Xilingol Pasture, Inner Mongolia.

The Science of the total environment·2021
Same author

Efficacy and Safety of First-Line Chemotherapies for Patients With Advanced Biliary Tract Carcinoma: A Systematic Review and Network Meta-Analysis.

Frontiers in oncology·2021
Same author

Quantitation of plasma metanephrines using isotope dilution liquid chromatography tandem mass spectrometry (ID-LC/MS/MS): a candidate reference measurement procedure and its application to evaluating routine ID-LC/MS/MS methods.

Analytical and bioanalytical chemistry·2021
Same author

Phosphorylation of CAP1 regulates lung cancer proliferation, migration, and invasion.

Journal of cancer research and clinical oncology·2021
Same author

A comprehensive investigation of the microbial risk of secondary water supply systems in residential neighborhoods in a large city.

Water research·2021
Same author

Interfacial Super-Assembly of Ordered Mesoporous Carbon-Silica/AAO Hybrid Membrane with Enhanced Permselectivity for Temperature- and pH-Sensitive Smart Ion Transport.

Angewandte Chemie (International ed. in English)·2021

Related Experiment Video

Updated: Jun 27, 2025

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
09:17

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

10.7K

Morphological Reconstruction for Variable Wing Leading Edge Based on the Node Curvature Vectors.

Jie Zeng1, Qingfeng Zhu1, Yueqi Zhao1

  • 1State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.

Biomimetics (Basel, Switzerland)
|April 26, 2024
PubMed
Summary

This study introduces a new method for accurately reconstructing variable wing leading edge shapes. The node curvature vectors-based curvature propagation method (NCV-CPM) improves accuracy for bio-inspired adaptive control systems.

Keywords:
curvature propagation methodmorphological reconstructionnode curvature vectorsstrain–curvature functionvariable wing leading edge

More Related Videos

Author Spotlight: Insight into the Current Experimental Avian Skin Explant Methodologies
09:30

Author Spotlight: Insight into the Current Experimental Avian Skin Explant Methodologies

Published on: September 15, 2023

1.1K
Flapping Soft Fin Deformation Modeling using Planar Laser-Induced Fluorescence Imaging
06:20

Flapping Soft Fin Deformation Modeling using Planar Laser-Induced Fluorescence Imaging

Published on: April 28, 2022

2.2K

Related Experiment Videos

Last Updated: Jun 27, 2025

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
09:17

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

10.7K
Author Spotlight: Insight into the Current Experimental Avian Skin Explant Methodologies
09:30

Author Spotlight: Insight into the Current Experimental Avian Skin Explant Methodologies

Published on: September 15, 2023

1.1K
Flapping Soft Fin Deformation Modeling using Planar Laser-Induced Fluorescence Imaging
06:20

Flapping Soft Fin Deformation Modeling using Planar Laser-Induced Fluorescence Imaging

Published on: April 28, 2022

2.2K

Area of Science:

  • Aerospace Engineering
  • Mechanical Engineering
  • Biomimetics

Background:

  • Accurate acquisition of variable wing leading edge morphology is crucial for bio-inspired adaptive control.
  • Existing methods like linear interpolation-based curvature propagation method (LI-CPM) suffer from cumulative errors, especially at unattached sensor positions.

Purpose of the Study:

  • To propose a novel morphological reconstruction method for variable wing leading edges.
  • To enhance the accuracy of curvature computation and reduce errors in strain field reconstruction for structural health monitoring.

Main Methods:

  • Utilized the node curvature vectors-based curvature propagation method (NCV-CPM).
  • Established a strain-arc curvature function to mitigate the impact of surface curvature angle on accuracy.
  • Employed high-order curvature fitting functions for determining curvature vectors of arc segment nodes.
  • Integrated curvature-strain functions for wing leading-edge strain field reconstruction.
  • Optimized sensing point distribution using a particle swarm algorithm to reduce network complexity.

Main Results:

  • Significantly enhanced morphological reconstruction accuracy compared to conventional LI-CPM.
  • Reduced cumulative errors in curvature computation at unattached sensor positions.
  • Demonstrated improved strain field reconstruction for structural health monitoring.

Conclusions:

  • The NCV-CPM offers a superior approach for precise morphology acquisition of variable wing leading edges.
  • The method supports advanced structural health monitoring and adaptive control in aerospace applications.
  • Optimization of sensor placement further enhances the efficiency and effectiveness of the system.