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Related Concept Videos

Mechanical Systems01:22

Mechanical Systems

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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...
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Electro-mechanical Systems01:19

Electro-mechanical Systems

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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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Simplification of a Force and Couple System: II01:23

Simplification of a Force and Couple System: II

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In a three-dimensional system, multiple forces can act on an object. These forces can be combined into a single equivalent force, known as the resultant force. Similarly, the moments generated by these forces can be combined into a single equivalent moment, the resultant couple moment. In certain situations, these two entities may not be mutually perpendicular, meaning they do not have a 90-degree angle between them. This unique condition requires a deeper understanding of the interplay between...
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Three-Dimensional Force System:Problem Solving01:30

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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.
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Support Reactions in Three Dimensions01:27

Support Reactions in Three Dimensions

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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
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Mechanical Efficiency of Real Machines01:14

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The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
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Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
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A framework for soft mechanism driven robots.

Cem Aygül1, Can Güven2, Sara A Frunzi2

  • 1Department of Mechanical Engineering, Tufts University, Medford, MA, USA.

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This study presents a novel 3D printing framework for soft robots, combining soft and rigid materials. This approach enhances dexterity and resilience for robots operating in diverse real-world terrains.

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Area of Science:

  • Robotics
  • Materials Science
  • Mechanical Engineering

Background:

  • Soft robots offer safety and adaptability but lack structural integrity.
  • Conventional robots are faster but less impact-resistant.
  • Bridging the gap between soft and rigid robotics is crucial for advanced applications.

Purpose of the Study:

  • To introduce a multi-material design and printing framework for soft robots.
  • To synergize the strengths of soft and rigid materials in monolithic robotic systems.
  • To enable terrestrial trajectory control and enhance resilience in soft robots.

Main Methods:

  • Utilizing a tool-changer with multiple extruders to blend thermoplastics of varying Shore hardness.
  • Emulating biomimetic joint-like structures for locomotion.
  • 3D printing a legged soft robotic system with integrated electronics and encoders for closed-loop control.

Main Results:

  • Demonstrated a novel framework for creating 3D-printed soft robots with enhanced dexterity and resilience.
  • Compared different mechanism syntheses and material combinations for movement patterns and speeds.
  • Successfully operated the robotic system across various terrains including sand, soil, and rock.

Conclusions:

  • The proposed framework effectively integrates soft and rigid materials, overcoming limitations of each.
  • Biomimetic design and multi-material printing enable robust terrestrial locomotion for soft robots.
  • This cost-effective approach facilitates the development of soft robots for real-world applications.