notes For RGPV Bhopal CBCS CBGS Students

  • Tribology (ME-8003)

     RGPV notes CBGS Bachelor of engineering


    UNIT 1:
    Introduction, history of tribology, early scientific studies of - friction, Wear Lubrication. Tribo-Surface preparations and characteristics. Surface contacts, Hertz contact stresses, residual stress, surface fatigue, creep, stress relaxation, fracture mechanics, elastic, visco elastic and plastic behavior of materials. Choice of materials.

    UNIT 2:
    Friction, laws of friction, rolling/sliding friction, theory of adhesion and abrasion, different mechanisms of friction , stick slip characteristics, interface temperature, thermal analysis, Molecular mechanical theory of friction, operating conditions and system parameters, calculations of coefficient of friction, design of friction devices.

    UNIT 3:
    Wear, different types of wear mechanisms, adhesive, abrasive impact,percussion erosion, fretting wear calculations of wear rate, two body/ three body wear, wear prevention, wear of metal cutting and metal forming tools, wear mapping of materials, cavitation, surface fatigue, corrosion, performance levels classifications and specifications of lubricants,

    UNIT 4:
    Lubrication, lubricants and additives, composition and properties of lubricants, maintenance of oil and emulsions, industrial hygiene aspects, technical regulations for lubricants. boundary/ mixed and fluid film lubrication, industrial methods of lubrications, SAE,BIS, ASTM, IP, DIN Standards.oil testings.wear and chemistry of lubricants.

    UNIT 5:
    Nano tribology, Instrumental tests,. Bearings, clutches and brakes, slide units, dynamic seals, Automobile applications, machine tools/ press machines applications. Other applications and case studies


    Books Recommended

    1 . Principles and applications of tribology, Bharat Bhushan, John Wiley& sons, ISBN 0 471 59407 5
    2. Tribology,, - lubrication ,friction and wear, I V Kragelsky and V V Alisin, Mir publication, ISBN 1 86058 288 5
    3 . Applied Tribology,M M Khonsari and E. R. Booser, John Wiley, ISBN 0 471 28302 9

    Tutorial topics.

    [1] Testing equipments of tribology.
    [2] Various industrial applications of tribology.
    [3] NEMS and MEMS applications
    [4] Solid, liquid and mist/ gas lubricants.
    [5] Surface coatings.
    [6] Chemical analysis of materials
    [7] Various simulations
    [8]AFM/ FFM , SFA, STM, studies.

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