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Related Concept Videos

Mechanical Systems01:22

Mechanical Systems

Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically described...
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Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
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In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...

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Elastic Fiber Programming for Simplified Pneumatic Control in Soft Robots.

Xiaoli Yang1, Tao Jin1, Shiwei Tian2

  • 1Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|April 24, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a new method to program soft robot actuators using embedded elastic fibers. This innovation simplifies control systems and enables versatile, cost-effective robotic applications.

Keywords:
actuation control simplificationelastic fiber programmingmodularizationpneumatic response characteristicspneumatic soft robots

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Area of Science:

  • Robotics
  • Materials Science
  • Mechanical Engineering

Background:

  • Conventional pneumatic soft robots often require complex control systems due to integrated structural and pneumatic dynamics.
  • Developing soft actuators with distinct, programmable responses from identical modules presents a significant challenge.

Purpose of the Study:

  • To present a novel strategy for programming the pneumatic response characteristics of soft actuators.
  • To demonstrate that structurally identical soft actuator modules can exhibit unique pressure-driven responses through embedded elastic fibers.

Main Methods:

  • Embedding elastic fibers with specific materials and pre-stretch ratios into soft actuator modules.
  • Utilizing a single pneumatic input to achieve multi-step actuation in the programmed soft actuators.

Main Results:

  • A 6 mm-diameter actuator prototype demonstrated a 2632% load ratio and 225°/s bending speed at a low material cost.
  • The programmed actuators enabled multi-step actuation for applications like pipeline-climbing robots, omnidirectional crawlers, and grippers.
  • The system successfully adapted grippers to objects ranging from 10 to 450 g.

Conclusions:

  • The fusion of material programming and mechanical intelligence simplifies control architectures for soft robots.
  • This approach offers a scalable and cost-effective pathway toward the development of deployable soft robotic systems.
  • The developed soft actuators exhibit enhanced functionality and simplified control, paving the way for advanced soft robotics applications.