Related Experiment Video
Updated: Nov 19, 2025
03:55
Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs
Published on: October 27, 2023
2.5K
Evaluation and Analysis of Push-Pull Cable Actuation System Used for Powered Orthoses
Svetlana Grosu1, Carlos Rodriguez-Guerrero1, Victor Grosu1
1MECH Department, Vrije Universiteit Brussel (VUB) and Flanders Make, Brussels, Belgium.
Frontiers in Robotics and AI
|January 27, 2021
Summary
This study evaluates push-pull cable actuation for wearable robotic devices, detailing its working principles, advantages, and drawbacks. Findings highlight its performance and transmission efficiency for gait rehabilitation devices and powered orthoses.
Area of Science:
- Robotics
- Biomechanics
- Mechanical Engineering
Background:
- Cable-based actuation is crucial in rehabilitation robotics for safe motor placement and effective force transmission.
- Understanding cable dynamics is essential for controlling system loads and performance in robotic applications.
- Limited literature exists on push-pull cable configurations, particularly for wearable robotic devices.
Purpose of the Study:
- To evaluate the performance and suitability of push-pull cable-based actuation in wearable robotic devices.
- To investigate the working principles, advantages, and drawbacks of push-pull cable actuation.
- To analyze the bidirectional force transfer capabilities of push-pull cables in a novel gait rehabilitation device.
Main Methods:
- Describing the working principle of push-pull cable actuation.
- Investigating push-pull cable use in bidirectional force transfer for remote actuation.
- Integrating the system into a test-stand setup for a novel gait rehabilitation device.
- Conducting experimental analysis of the push-pull cable-based actuation system.
Main Results:
- Detailed analysis of the push-pull cable actuation system's performance and dynamic behavior.
- Evaluation of transmission efficiency for push-pull cables in powered orthoses.
- Demonstration of push-pull cables' capability for bidirectional force transfer in a rehabilitation setting.
Conclusions:
- Push-pull cable actuation is a viable option for wearable robotic devices, offering effective remote actuation.
- The study provides essential insights into the performance and efficiency of push-pull cables for gait rehabilitation and powered orthoses.
- Further research into push-pull cable dynamics can optimize their application in advanced robotic systems.
More Related Videos
Related Concept Videos
01:24Cable Subjected to a Distributed Load
942
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
942
01:28Cable Subjected to Concentrated Loads
1.2K
Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
1.2K
01:29Cable: Problem Solving
492
When dealing with a cable that is fixed to two supports and subjected to uniform loading, it is crucial to determine the maximum tension in the cable. This process can be broken down into several key steps, as outlined below:
492
01:13Cable Subjected to Its Own Weight
660
Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
660
01:19Machines
457
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
A free-body diagram of the...
457
01:20Motor Unit Stimulation
3.1K
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
3.1K