MECA5 Friction Experiments

7.1.1.- 机械基础套件 14.1.1.- 机械基础套件
FRICTION EXPERIMENTS - MECA5

創新系統

This module considers the most important phenomenon of Dynamics: Friction. It is a manifestation of the energy loss due to contact, effect that happens in every real-world mechanism.

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扩展

ICAI

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7TV
 技术和职业教育的机械、汽车和材料实验室
7HE
 高等教育机械、汽车和材料实验室

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一般說明

This module considers the most important phenomenon of Dynamics: Friction. It is a manifestation of the energy loss due to contact, effect that happens in every real-world mechanism.

練習和指導練習

手册中包含的指导实践练习

  1. Sliding friction. Verification of the laws of friction and to measure the coefficient of friction for different materials.
  2. Inclined plane (Inclined plane (I) and Inclined plane (II)). Analysis of the forces acting on an inclined plane due to a weighted of a roller supported on the plane. Calculation of the starting force needed for dragging a block on the plane.
  3. Angle of friction. Measurement of the angle of friction and from it find the coefficient of friction. To show that the coefficient of friction is equal to tangent of the angle of friction.
  4. Friction. To show the extent to which friction is reduced by using wheels and rollers and to compare the effects of different bearing surfaces.
  5. The wedge. Determine mechanical advantage and efficiency obtained using two different wedges, and to show that overhauling may be prevented if the angle of inclination of a wedge is small.
  6. Bearings. Comparison of the resistance to turning due to friction of four bearings made of different materials, and to show something of the progress made in bearing development.

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