TM 260.02 Elasto-Hydrodynamic Behaviour Didactic Equipment Vocational Training Equipment Mechanical Training Equipment
Investigation of the form and thickness of lubrication films Features - elasto-hydrodynamic behaviour between the sphere and rotating-glass-plate friction pair - investigation of the thickness and shape of the lubricating film Learning objectives/experiments - together with the drive unit -- determine the thickness of the lubricating film at the contact point of a sphere with a plane surface - compare with theoretical value -- study the effect of load and speed on the thickness of the lubricating film Specification [1] elasto-hydrodynamic behaviour of a lubricating film layer between sphere and rotating glass plate [2] quick and easy assembly of the experimental unit on the frame of the drive unit [3] determine the thickness of the lubricating film by optical interference [4] glass plate is driven by a clampable coupling between drive unit and gear unit [5] hardened steel sphere, polished [6] rotating plane-parallel glass plate with dielectric coating [7] continuous load on the sphere via lever arm [8] load measured by force sensor [9] displays of force and speed and speed adjustment on the drive unit Technical data Load application device - max. load: 150N - lever arm ratio: 3:1 Sphere - diameter: 25,4mm - hardened steel, polished Glass plate - diameter: 150mm, plane-parallel - coating: BK 7, dielectric, R=30% Microscope - magnification: x50 - halogen lamp: 10W Force sensor: 0...50N LxWxH: 350x250x550mm Weight: approx. 8kg
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