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

Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

4.2K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.2K
Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

2.1K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.1K
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

1.6K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.6K
Mechanism of heat transfer01:19

Mechanism of heat transfer

1.9K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.9K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

5.9K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
5.9K
Thermal Stress01:09

Thermal Stress

3.3K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
3.3K

You might also read

Related Articles

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

Sort by
Same author

A High-Precision Short-Term Photovoltaic Power Forecasting Model Based on Multivariate Variational Mode Decomposition and Gated Recurrent Unit-Attention with Crested Porcupine Optimizer-Enhanced Vector Weighted Average Algorithm.

Sensors (Basel, Switzerland)·2025
See all related articles

Related Experiment Video

Updated: Jan 16, 2026

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

2.1K

Intelligent Soft Sensor for Spindle Convective Heat Transfer Coefficient Under Varying Operating Conditions Using

Jinxiang Pian1, Gen Li1

  • 1College of Electrical and Control Engineering, Shenyang Jianzhu University, Shenyang 110168, China.

Sensors (Basel, Switzerland)
|September 27, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a novel method using multi-sensor data and an improved Grey Wolf Optimization algorithm to accurately measure convective heat transfer coefficients (CHTC) in CNC machine tool spindles. This enhances thermal analysis and machine accuracy.

Keywords:
convective heat transfer coefficients (CHTC)data-drivenimproved grey wolf optimization (IGWO)soft sensorspindle

More Related Videos

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.6K

Related Experiment Videos

Last Updated: Jan 16, 2026

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

2.1K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.6K

Area of Science:

  • Mechanical Engineering
  • Thermal Analysis
  • Computational Intelligence

Background:

  • Thermal deformation in high-precision CNC machine tools limits machining accuracy.
  • Accurate characterization of spindle thermal properties, particularly convective heat transfer coefficients (CHTC), is crucial but challenging due to measurement difficulties.

Purpose of the Study:

  • To develop an innovative approach for accurately identifying CHTC in CNC machine tool spindles.
  • To overcome the limitations of direct CHTC measurement instruments.
  • To improve thermal analysis and compensation for machine tool thermal errors.

Main Methods:

  • Implementation of a distributed temperature monitoring network for real-time thermal field data acquisition.
  • Application of an improved Grey Wolf Optimization (IGWO) algorithm with adaptive weight adjustment for dynamic CHTC identification.
  • Integration of multi-sensor data with intelligent optimization algorithms.

Main Results:

  • The proposed IGWO method demonstrated superior accuracy in temperature prediction compared to conventional approaches.
  • Effective dynamic and accurate identification of CHTC was achieved across a wide operating range.
  • The method proved robust under dynamic operating conditions.

Conclusions:

  • The developed technique offers a viable indirect measurement solution for CHTC in machine tool spindles.
  • This research provides a novel technical solution for machine tool thermal error compensation.
  • A scalable intelligent indirect measurement framework is established, applicable even without specialized instruments.