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

Power Expended by a Constant Force00:57

Power Expended by a Constant Force

9.0K
The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
9.0K
Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

3.4K
A biomembrane force probe (BFP) is an in situ dynamic force spectroscopy (DFS) technique. BFP can be used to measure the spring constant of molecular interactions on living cells. This protocol presents spring constant analysis for molecular bonds detected by BFP.
3.4K
Material Constants11:23

Material Constants

24.6K
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA
In contrast to the production of cars or toasters, where millions of identical copies are made and extensive prototype testing is possible, each civil engineering structure is unique and very expensive to reproduce (Fig.1). Therefore, civil engineers must extensively rely on analytical modeling to design their structures. These models are simplified abstractions of reality and are used to...
24.6K
Design Example: Forces in Sluice Gate01:11

Design Example: Forces in Sluice Gate

2.8K
In hydraulic engineering, sluice gates are essential for managing water flow through channels, reservoirs, and irrigation systems. Sluice gates, acting as vertical barriers, regulate water by adjusting the gate's opening height, which changes the velocity and pressure of water flowing beneath the gate. Understanding the forces involved is crucial to designing sluice gates that can withstand dynamic pressure differences, especially when the gate is closed or partially open.
Key variables in...
2.8K
Vector Algebra: Method of Components01:08

Vector Algebra: Method of Components

18.8K
It is cumbersome to find the magnitudes of vectors using the parallelogram rule or using the graphical method to perform mathematical operations like addition, subtraction, and multiplication. There are two ways to circumvent this algebraic complexity. One way is to draw the vectors to scale, as in navigation, and read approximate vector lengths and angles (directions) from the graphs. The other way is to use the method of components.
In many applications, the magnitudes and directions of...
18.8K
Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications08:23

Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications

12.7K
The design and development of an aptamer–gold nanoparticle colorimetric assay for the detection of small molecules for in-the-field applications was examined. Additionally, a smart-device colorimetric application (app) was validated and long-term storage of the assay was established for use in the...
12.7K

You might also read

Related Articles

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

Sort by
Same author

Construction and Application of a Tactile Somatosensory Comfort Model for Scrubbing Tasks.

Biomimetics (Basel, Switzerland)·2026
Same author

Edge Computing for Environment-Based Locomotion Modes Prediction and Terrain Features Calculation in Lower Limb Prostheses.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026
Same author

sEMG-Based Muscle Synergy Analysis and Functional Driving Ratio for Quantitative Assessment During Robot-Assisted Upper-Limb Rehabilitation.

Sensors (Basel, Switzerland)·2026
Same author

A Self-Driving and Self-Reporting Petal-Like Au-Cu<sub>2</sub>O Metalloenzyme for Probing H<sub>2</sub>S-Mediated Cuproptosis.

ACS nano·2026
Same author

Prediction of Massage Force and Intra-abdominal Wall Deformation During Massage by a Digital Twin Model Based on an Abdominal Finite Element Model.

Annals of biomedical engineering·2026
Same author

Current progress of active compliance control strategies and applications in lower limb exoskeleton rehabilitation robots: a narrative review.

Expert review of medical devices·2026
Same journal

Correction: Yang et al. Microstructural Characteristics of High-Pressure Die Casting with High Strength-Ductility Synergy Properties: A Review. <i>Materials</i> 2023, <i>16</i>, 1954.

Materials (Basel, Switzerland)·2026
Same journal

Effect of La and Ce Microalloying on the Corrosion Resistance of 0.4Sb Low-Alloy Steel in a Harsh Marine Atmospheric Environment.

Materials (Basel, Switzerland)·2026
Same journal

High-Temperature Properties of Magnesium Ammonium Phosphate Cement Modified with Gold Tailings.

Materials (Basel, Switzerland)·2026
Same journal

A Study on the Evolution of Intermetallic Phase Microstructure and High-Temperature Creep Behavior in Mg-8.0Al-1.0Nd-1.5Gd-Mn Alloys.

Materials (Basel, Switzerland)·2026
Same journal

Material-Driven Clinical Complications in Mechanical Circulatory Support: From Blood-Material Interactions to Device-Related Adverse Events.

Materials (Basel, Switzerland)·2026
Same journal

Influence of Final Irrigation on Calcium Silicate-Based Sealer Dentinal Tubular Penetration: A Systematic Review.

Materials (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Jan 20, 2026

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.4K

Design Method for Constant Force Components Based on Superelastic SMA.

Minghui Wang1,2, Hongliu Yu3, Ping Shi4

  • 1Shanghai Engineering Research Center of Assistive Devices/Institute of Rehabilitation Engineering and Technology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China. mhren08@163.com.

Materials (Basel, Switzerland)
|September 7, 2019
PubMed
Summary
This summary is machine-generated.

A new generalized design method enables superelastic shape memory alloy (SMA) components to achieve constant force over large deformations. This innovation is crucial for medical devices like forceps and artificial sphincters, preventing tissue damage from overloading.

Keywords:
constant forcefinite element analysisgeneralized design methodshape memory alloysuperelastic

More Related Videos

Elasticity Theory; Modulus of Elasticity and Poisson&#039;s Ratio
11:23

Elasticity Theory; Modulus of Elasticity and Poisson's Ratio

Published on: April 30, 2023

24.6K
Power Expended by a Constant Force
00:57

Power Expended by a Constant Force

9.0K

Related Experiment Videos

Last Updated: Jan 20, 2026

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy
08:10

Molecular Spring Constant Analysis by Biomembrane Force Probe Spectroscopy

Published on: November 20, 2021

3.4K
Elasticity Theory; Modulus of Elasticity and Poisson&#039;s Ratio
11:23

Elasticity Theory; Modulus of Elasticity and Poisson's Ratio

Published on: April 30, 2023

24.6K
Power Expended by a Constant Force
00:57

Power Expended by a Constant Force

9.0K

Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Mechanical Engineering

Background:

  • Medical instruments require constant force/pressure components to prevent soft tissue damage from overloading.
  • Existing designs for hemostatic forceps and artificial sphincters face challenges in maintaining consistent force.
  • Superelastic shape memory alloys (SMAs) offer potential for controlled force applications.

Purpose of the Study:

  • To address design method issues for constant force components utilizing superelastic shape memory alloys.
  • To propose a generalized method for designing SMA-based constant force components.
  • To validate the proposed design method through experimental comparison.

Main Methods:

  • Development of a generalized design methodology for superelastic SMA constant force components.
  • Application of the method to design a C-shaped SMA sheet (0.2 mm thickness).
  • Experimental fabrication and testing of the designed C-shaped SMA component.

Main Results:

  • The generalized design method successfully generated SMA component designs that produced constant force.
  • Experimental results for a C-shaped SMA sheet validated the design method's predictions.
  • The designed SMA components demonstrated the ability to maintain constant force across a significant deformation range.

Conclusions:

  • The proposed generalized design method is feasible and effective for creating superelastic SMA components with constant force properties.
  • Geometric modifications of SMA components can be used to achieve constant force over large deformation ranges.
  • This research advances the development of safer and more effective medical instruments utilizing SMA technology.