MEMT Unité Modulaire de Tribologie

7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION) 14.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
TRIBOLOGY MODULAR UNIT - MEMT

SYSTEMES INNOVANTS

The Tribology Modular Unit, "MEMT", consists of a base unit with electronic console and a series of experimental units to investigate and visualize tribological phenomena.

Voir description générale

Expansions

ICAI

Logiciel Interactif pour l'Enseignement assisté par Ordinateur

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Description Générale

The Tribology Modular Unit, "MEMT", consists of a base unit with electronic console and a series of experimental units to investigate and visualize tribological phenomena.

  • MEMT-UB. Drive Unit for Tribological Tests. This unit is common for the modules type "MEMT". It consists of a base unit and an electronic console. The different experimental units are quickly and easily mounted and connected to the Drive Unit for Tribological Tests, "MEMT-UB", with electronic console, thanks to quick-clamping elements.
Required elements (at least one) (Not included):
  • MEMT-1. Radial Pressure Distribution in a Journal Bearing. This unit allows the visualization of the radial pressure distribution in a journal bearing with hydrodynamic lubrication.
  • MEMT-2. Dynamic Friction of a Cylinder on a Roller. This unit allows to demonstrate the friction forces between several cylinders of different materials and a roller under different lubrication conditions.
  • MEMT-3. Dynamic Friction of a Pin on a Disc. This unit allows to study the friction forces between several vertical friction pins of different materials and a rotating friction disc.
  • MEMT-4. Rolling Friction in Wheels. This unit allows to determine the slip forces between two rotating friction discs in contact.
  • MEMT-5. Elastohydrodynamic Lubrication. This unit allows to investigate the thickness and characteristics of a lubricant film on a rolling sphere.
  • MEMT-6. Friction Vibration. This unit allows to demonstrate the static friction, the sliding friction, the related friction vibrations and the slip-stick effects.

Accessoires

DRIVE UNIT FOR TRIBOLOGICAL TESTS - MEMT-UB
  • MEMT-UB
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-UB
Unité d'Entraînement pour les Tests Tribologiques
This unit is common for the modules type "MEMT". It consists of a base unit and an electronic console:The Base Unit consists of a drive unit formed by a DC motor with a shaft. The motor is mounted in a reduction gear, obtaining enough torque in...
Voir l'Unité
RADIAL PRESSURE DISTRIBUTION IN A JOURNAL BEARING - MEMT-1
  • MEMT-1
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-1
Distribution de la Pression Radiale dans un Palier
This unit allows the visualization of the radial pressure distribution in a journal bearing with hydrodynamic lubrication.The "MEMT-1" unit consists of a journal bearing with hydrodynamic lubrication, a freely moving bearing housing with thirteen...
Voir l'Unité
DYNAMIC FRICTION OF A CYLINDER ON A ROLLER - MEMT-2
  • MEMT-2
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-2
Friction Dynamique d'un Cylindre sur un Rouleau
This unit allows to demonstrate the friction forces between several cylinders of different materials and a roller under different lubrication conditions.The "MEMT-2" unit consists of two levers that transmit a force applied by weights to a test...
Voir l'Unité
DYNAMIC FRICTION OF A PIN ON A DISC - MEMT-3
  • MEMT-3
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-3
Friction Dynamique d'une Goupille sur un Disque
This unit allows to study the friction forces between several vertical friction pins of different materials and a rotating friction disc.The end of each vertical pin is made of a different material and rubs against the rotating steel disc. The...
Voir l'Unité
ROLLING FRICTION IN WHEELS - MEMT-4
  • MEMT-4
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-4
Friction par Rotation sur des Roues
This module allows to determine the slip forces between two rotating friction discs in contact.The slip between the discs is maintained constant by a gearbox. The pressure can be adjusted with a lever and a set of weights. The unit includes a...
Voir l'Unité
ELASTOHYDRODYNAMIC LUBRICATION - MEMT-5
  • MEMT-5
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-5
Lubrification Elastohydrodynamique
This unit allows to investigate the thickness and characteristics of a lubricant film on a rolling sphere.The unit consists in a steel sphere and a driven glass disc.The sphere is pressed against the underside of the glass disc. The light from a...
Voir l'Unité
FRICTION VIBRATION - MEMT-6
  • MEMT-6
Available
7.1.5.- TRIBOLOGIE (FRICTION, USURE, LUBRIFICATION)
MEMT-6
Vibration / Friction
This module allows to demonstrate the static friction, the sliding friction, the related friction vibrations and the slip-stick effects.Several weights are placed on a horizontally rotating friction disc. It is prevented from turning by a cord....
Voir l'Unité

Des exercices et pratiques guidées

EXERCICES GUIDÉS INCLUS DANS LE MANUEL

Practices to be done with the experimental unit of Radial Pressure Distribution in a Journal Bearing (MEMT-1):

  1. Demonstration and visualization of the radial pressure distribution in a journal bearing with hydrodynamic lubrication.
  2. Investigation of the pressure distribution in the journal bearing depending on the bearing gap width.
  3. Investigation of the pressure distribution in the journal bearing depending on the speed.
  4. Study of the stability limit as a function of the gap width.

Practices to be done with the experimental unit of Dynamic Friction of a Cylinder on a Roller (MEMT-2):

  1. Demonstration of friction forces between several pins of different materials and a rotating friction disc under different lubrication conditions.
  2. Investigation of the friction forces for several pairs of friction materials.
  3. Investigation of the friction forces for different speeds of the rotating disc.
  4. Investigation of the friction forces with several loads.
  5. Investigation of the friction forces for different lubrication conditions.
  6. Study of the wear coefficient for different friction parameters.
  7. Study of the wear and wear rate for different friction parameters.

Practices to be done with the experimental unit of Dynamic Friction of a Pin on a Disc (MEMT-3):

  1. Study of the friction forces between several vertical pins of different materials and a rotating friction disc.
  2. Investigation of the friction forces for several pairs of friction materials.
  3. Investigation of the friction forces for several loads.
  4. Investigation of the friction forces with different lubricants.
  5. Investigation of the friction forces at different speeds of the rotating disc.
  6. Study of the wear for different friction parameters.

Practices to be done with the experimental unit of Rolling Friction in Wheels (MEMT-4):

  1. Determination of the slip forces between two rotating discs in contact.
  2. Investigation of friction forces as a function of the load.
  3. Investigation of friction forces as a function of the operating speed.
  4. Investigation of friction forces as a function of the lubrication.

Practices to be done with the experimental unit of Elastohydrodynamic Lubrication (MEMT-5):

  1. Study of the elastohydrodynamic behavior of a lubricant film between a rolling sphere and a disc.
  2. Determination of the lubricant film thickness at the point of contact between a sphere and a disc.
  3. Comparison of the experimental lubricant film thickness with theoretical values.
  4. Study of the influence of load on the lubricant film thickness.
  5. Study of the influence of speed on the lubricant film thickness.

Practices to be done with the experimental unit of Friction Vibration (MEMT-6):

  1. Demonstration of the transition from static friction to sliding friction.
  2. Study of the influence of lubrication on stick-slip effects.
  3. Study of the influence of the force between the components on the stick-slip effects.
  4. Study of the influence of the relative speed of the components on the stick-slip effects.
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