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

Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

618
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
618
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

686
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
686
Torque Free Motion01:15

Torque Free Motion

692
The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
692
Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

1.2K
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
1.2K
Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

1.1K
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
1.1K
Torsion of Noncircular Members01:16

Torsion of Noncircular Members

396
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
396

You might also read

Related Articles

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

Sort by
Same author

Smartphone-based App to Assess Diabetic Peripheral Neuropathy.

Journal of diabetes science and technology·2026
Same author

Smartphone-based App to Assess Diabetic Peripheral Neuropathy.

medRxiv : the preprint server for health sciences·2026
Same author

Loop closure grasping: Topological transformations enable strong, gentle, and versatile grasps.

Science advances·2025
Same author

Tactile displays driven by projected light.

Science robotics·2025
Same author

A soft robotic device for rapid and self-guided intubation.

Science translational medicine·2025
Same author

Reachable Polyhedral Marching (RPM): An Exact Analysis Tool for Deep-Learned Control Systems.

IEEE transactions on neural networks and learning systems·2025
Same journal

DNA origami snaps into place.

Science robotics·2026
Same journal

A high-endurance DNA origami snap-through switch for functional nanoscale control.

Science robotics·2026
Same journal

Learning flight navigation like a honey bee.

Science robotics·2026
Same journal

Is your robot vacuum cleaner spying on you?

Science robotics·2026
Same journal

Do people feel safe in a robot's presence?

Science robotics·2026
Same journal

Stop chasing identical outcomes in HRI replication: Learn from the differences.

Science robotics·2026
See all related articles

Related Experiment Video

Updated: Dec 6, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
07:40

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Published on: June 10, 2020

15.1K

An untethered isoperimetric soft robot.

Nathan S Usevitch1, Zachary M Hammond1, Mac Schwager2

  • 1Department of Mechanical Engineering, Stanford University, Stanford, CA, USA. usevitch@stanford.edu zhammond@stanford.edu.

Science Robotics
|October 6, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed an untethered, inflatable robotic truss capable of continuous shape change. This novel soft robot design overcomes tether limitations for human-scale applications, enabling safe and adaptable locomotion.

More Related Videos

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
11:06

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery

Published on: November 14, 2015

9.2K
Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

4.0K

Related Experiment Videos

Last Updated: Dec 6, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
07:40

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Published on: June 10, 2020

15.1K
Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
11:06

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery

Published on: November 14, 2015

9.2K
Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

4.0K

Area of Science:

  • Robotics
  • Materials Science
  • Mechanical Engineering

Background:

  • Real-world robot applications require safety, adaptability, and untethered operation.
  • Existing soft robots face limitations in human-scale size and tethered power/air supply.

Purpose of the Study:

  • To develop an untethered, inflatable robotic truss system for scalable and adaptable robot designs.
  • To overcome the tether limitations of current soft robotic architectures.

Main Methods:

  • Constructed robots from thin-walled inflatable tubes and modular roller systems.
  • Utilized roller modules to create joints and drive shape change by relocating joints along tubes.
  • Demonstrated isoperimetric behavior where total edge length and fluid volume remain constant during shape change.

Main Results:

  • Developed an untethered, inflatable robotic truss capable of continuous shape change.
  • Achieved human-scale 3D robots with rolling locomotion and manipulation capabilities.
  • Showcased modularity, robustness, and safety by integrating soft, collective, and truss robot advantages.

Conclusions:

  • The novel robotic truss design offers a tether-free solution for scalable soft robots.
  • This approach enables adaptable locomotion and manipulation for human-scale robots.
  • The integrated design overcomes limitations of existing soft, collective, and truss-based robots.