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

Fatigue01:21

Fatigue

208
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
208
Work and Energy for Variable Forces01:10

Work and Energy for Variable Forces

3.7K
When an object is acted upon by a variable force, the amount of work done and the change in energy of the object can be more complex to calculate compared to when a constant force is applied. Work is the product of force and displacement, while energy is the capacity of a system to do work. When a constant force is applied to an object, the work done can be calculated as the product of the force and the distance moved in the direction of the force. However, when a variable force is applied, the...
3.7K
Fatigue Strength of Concrete01:22

Fatigue Strength of Concrete

217
Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
217
Velocity and Acceleration of a Wave00:51

Velocity and Acceleration of a Wave

4.0K
A wave propagates through a medium with a constant speed, known as a wave velocity. It is different from the speed of the particles of the medium, which is not constant. In addition, the velocity of the medium is perpendicular to the velocity of the wave. The variable speed of the particles of the medium implies that there must be acceleration associated with it. 
The velocity of the particles can be obtained by taking the partial derivative of the position equation with respect to time....
4.0K
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

188
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
188
Design of Transmission Shafts - Stress Analysis01:15

Design of Transmission Shafts - Stress Analysis

401
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
401

You might also read

Related Articles

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

Sort by
Same author

Supaglutide alleviates hepatic steatosis in monkeys with spontaneous MASH.

Diabetology & metabolic syndrome·2024
Same author

Modulation of local immunity by the vaginal microbiome is associated with triggering spontaneous preterm birth.

Frontiers in immunology·2024
Same author

Study on the Predictive Value of Renal Resistive Index Combined with β2-Microglobulin in Patients with Urosepsis Complicated with Acute Kidney Injury.

Journal of inflammation research·2024
Same author

Multi-omics study of sex in greater amberjack (Seriola dumerili): Identifying related genes, analyzing sex-biased expression, and developing sex-specific markers.

Comparative biochemistry and physiology. Part D, Genomics & proteomics·2024
Same author

Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite.

Foods (Basel, Switzerland)·2024
Same author

Laser Cutting of Non-Woven Fabric Using UV Nanosecond Pulsed Laser.

Micromachines·2024

Related Experiment Video

Updated: Jul 20, 2025

Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method
07:37

Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method

Published on: January 16, 2019

9.7K

Accelerated Editing Method for Vehicle Durability Fatigue Load Spectrum Based on Wigner-Ville Transform.

Yongle Yang1, Zhifei Zhang1, Liangfeng Peng1

  • 1College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400030, China.

Sensors (Basel, Switzerland)
|July 29, 2023
PubMed
Summary

This study introduces a Wigner-Ville transform (WVT) method to efficiently edit vehicle part load spectra for durability testing. The WVT approach significantly improves test efficiency by identifying and removing ineffective data points while preserving crucial load information.

Keywords:
Wigner-Ville transformfatigue simulationgenetic algorithminstantaneous energy spectrumload spectrum editing

More Related Videos

Ultrasonic Fatigue Testing in the Tension-Compression Mode
06:54

Ultrasonic Fatigue Testing in the Tension-Compression Mode

Published on: March 7, 2018

10.7K
Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

13.9K

Related Experiment Videos

Last Updated: Jul 20, 2025

Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method
07:37

Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method

Published on: January 16, 2019

9.7K
Ultrasonic Fatigue Testing in the Tension-Compression Mode
06:54

Ultrasonic Fatigue Testing in the Tension-Compression Mode

Published on: March 7, 2018

10.7K
Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

13.9K

Area of Science:

  • Engineering
  • Mechanical Engineering
  • Signal Processing

Background:

  • Durability testing of vehicle parts is crucial for product reliability.
  • Current load spectrum editing methods can be inefficient, impacting test duration and cost.
  • Accurate representation of load spectra is vital for effective fatigue analysis.

Purpose of the Study:

  • To propose an efficient Wigner-Ville transform-based (WVT-based) method for editing vehicle part load spectra.
  • To improve the efficiency of durability tests by reducing redundant data in load signals.
  • To develop a genetic algorithm (GA) based model for optimizing the instantaneous energy spectrum (IES) threshold.

Main Methods:

  • Utilizing the Wigner-Ville transform (WVT) to obtain the instantaneous energy spectrum (IES) from time-domain signals.
  • Employing a genetic algorithm (GA) to optimize the IES threshold for identifying ineffective damage points.
  • Comparing the WVT-based method with time-domain editing, Short-time Fourier-transform, and S-transform methods.

Main Results:

  • The WVT-based edited spectrum achieved a time-duration retention ratio of approximately 76.30%.
  • This retention ratio is significantly superior to other compared methods while maintaining pseudo-damage and statistical parameter constraints.
  • Fatigue simulation analysis confirmed that the edited spectrum's load effect closely matches the original signal's load effect.

Conclusions:

  • The proposed WVT-based load spectrum editing method is highly effective for compiling component load signals in vehicle durability tests.
  • This method offers a substantial improvement in efficiency compared to existing techniques.
  • The approach ensures the integrity of critical load information for accurate fatigue life prediction.