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Related Concept Videos

Three-Winding Transformers01:19

Three-Winding Transformers

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Three identical single-phase transformers can be configured to form a three-phase transformer connection, which involves high-voltage and low-voltage windings. The high-voltage windings are denoted by capital letters A-B-C, while the low-voltage windings are labeled with lowercase letters a-b-c, representing their respective phases. This notation helps distinguish between the high and low voltage sides of the transformer.
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
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Wind Turbine Machine Models01:24

Wind Turbine Machine Models

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In the growing field of wind energy, incorporating wind turbine models into transient stability analysis is essential. Induction and synchronous machines are the primary models used, with induction machines being prevalent due to their simplicity and reliability.
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
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Impact Loading01:19

Impact Loading

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Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...
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Distributed Loads01:19

Distributed Loads

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Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
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Eccentric Loading01:16

Eccentric Loading

955
Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under...
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Design Example: Calculating Safe Diameter for Wind-Exposed Disc01:17

Design Example: Calculating Safe Diameter for Wind-Exposed Disc

358
Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
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Related Experiment Video

Updated: Jan 30, 2026

Rod-based Fabrication of Customizable Soft Robotic Pneumatic Gripper Devices for Delicate Tissue Manipulation
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High-Load Soft Grippers Based on Bionic Winding Effect.

Haili Li1, Jiantao Yao1,2, Pan Zhou1

  • 11 Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao, China.

Soft Robotics
|January 17, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces four novel high-load soft grippers inspired by natural winding patterns. These bio-inspired grippers offer enhanced load capacity and versatile, damage-free gripping for various objects.

Keywords:
gripping effecthigh-load soft gripperpneumatic artificial musclewinding

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Area of Science:

  • Robotics
  • Biomimetics
  • Materials Science

Background:

  • Improving the load capacity of soft grippers remains a significant challenge in robotics.
  • Existing soft grippers often have limitations in handling heavy or irregularly shaped objects.

Purpose of the Study:

  • To develop novel high-load soft grippers with enhanced gripping capabilities.
  • To explore bio-inspired designs based on natural winding models for improved performance.

Main Methods:

  • Designed four novel soft gripper structures inspired by bionic winding models.
  • Utilized pneumatic artificial muscles (PAMs) as actuators for the gripper designs.
  • Fabricated and tested the performance of the high-load soft grippers.

Main Results:

  • The developed high-load soft grippers demonstrate superior load capacity compared to existing designs.
  • Achieved versatile gripping of objects with diverse shapes and stiffnesses without causing damage.
  • The grippers are safe for human interaction in collaborative environments.

Conclusions:

  • Bio-inspired winding structures offer a promising approach for enhancing soft gripper load capacity.
  • These novel soft grippers have potential applications in various industries requiring robust and adaptable manipulation.
  • The study lays the groundwork for future engineered systems incorporating bionic winding principles.