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

Bearing Stress01:22

Bearing Stress

1.5K
Bearing stress refers to the contact pressure between two separate bodies. To visualize this, imagine a bolt thrust through a plate. The bolt applies a force to the plate, which exerts an equal but opposite force back onto the bolt. This force isn't just a singular entity but a compilation of numerous smaller forces distributed across the contact surface between the bolt and the plate.
Due to the intricacy of these microforces, an average value, known as bearing stress, is often used by...
1.5K
Fluid Pressure over Flat Plate of Variable Width01:02

Fluid Pressure over Flat Plate of Variable Width

1.9K
When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
1.9K
Stress Concentrations in Circular Shafts01:18

Stress Concentrations in Circular Shafts

380
Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...
380
Fluid Pressure over Curved Plate of Constant Width01:12

Fluid Pressure over Curved Plate of Constant Width

1.8K
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
1.8K
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

281
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
281
Saint-Venant's Principle01:18

Saint-Venant's Principle

1.1K
The principle of Saint-Venant postulates that the stress distribution within a structural member does not rely on the precise method of load application except in the vicinity of the load application points. Consider a scenario where loads are centrally applied on two plates. In this case, the plates move toward each other without any rotation. This movement causes the member to contract in length and expand in width and thickness. Uniform deformation across all elements and maintaining...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Prokaryotic expression, purification of Tldi1 protein and preparation of its polyclonal antibody in Salmonella Typhimurium.

Protein expression and purification·2026
Same author

Bilirubin mitigates ischemic white matter injury by targeting transferrin-receptor-mediated B cell immunometabolism.

Cell reports·2026
Same author

Type VI secretion system immunity protein Tldi1 modulates host inflammatory responses and gut microbiota homeostasis in chickens infected with Salmonella enterica serovar Typhimurium.

Poultry science·2026
Same author

Label-free streamlined photoacoustic image guidance facilitates NIR-II photoablation in models of melanoma lung metastases.

The Journal of clinical investigation·2026
Same author

Chemotherapy-free regimen: Real-world efficacy and safety of anlotinib plus PD-1/PD-L1 inhibitors in advanced non-small cell lung cancer.

Chinese journal of cancer research = Chung-kuo yen cheng yen chiu·2026
Same author

The remnant cholesterol inflammatory index and risk of future cardiovascular disease in early CKM syndrome: findings from CHARLS.

Journal of health, population, and nutrition·2026

Related Experiment Video

Updated: Nov 27, 2025

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
11:05

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes

Published on: December 13, 2016

12.5K

Entropy-Based Method to Evaluate Contact-Pressure Distribution for Assembly-Accuracy Stability Prediction.

Xiao Chen1, Xin Jin1, Ke Shang1

  • 1School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary

This study introduces an improved method for predicting assembly accuracy stability using contact-pressure distribution entropy. This approach enhances prediction efficiency and accuracy for precision assembly, even with temperature changes.

Keywords:
assembly accuracyassembly-accuracy stabilitycontact pressureentropy

More Related Videos

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps
07:34

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps

Published on: August 5, 2015

9.7K
Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.4K

Related Experiment Videos

Last Updated: Nov 27, 2025

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
11:05

Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes

Published on: December 13, 2016

12.5K
A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps
07:34

A Cost-effective and Reliable Method to Predict Mechanical Stress in Single-use and Standard Pumps

Published on: August 5, 2015

9.7K
Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.4K

Area of Science:

  • Mechanical Engineering
  • Manufacturing Technology
  • Materials Science

Background:

  • Assembly accuracy and stability are critical for precision assembly reliability and efficiency.
  • Existing methods for predicting assembly accuracy stability have limitations.

Purpose of the Study:

  • To present an improved method for predicting assembly accuracy stability.
  • To enhance the efficiency and accuracy of precision assembly predictions.

Main Methods:

  • Developed a novel method based on contact-pressure distribution entropy.
  • Utilized contact-pressure distribution as the primary evaluation parameter, replacing strain-energy distribution.
  • Validated the method using existing and new case studies from actual production.

Main Results:

  • The improved method demonstrates higher efficiency and accuracy compared to the original method.
  • Successfully predicted assembly accuracy and its stability under varying ambient temperatures.
  • Contact pressure provides clearer mechanical significance than strain energy for distinguishing contact areas.

Conclusions:

  • The improved method based on contact-pressure distribution entropy is effective for predicting assembly accuracy stability.
  • This approach offers a more mechanically significant and accurate alternative for precision assembly analysis.
  • The method's validity and correctness are confirmed through practical case studies.