ME8651- DESIGN OF TRANSMISSION SYSTEMS SYLLABUS / BOOKS AND MATERIALS
UNIT I DESIGN OF FLEXIBLE ELEMENTS
Design of Flat belts and pulleys - Selection of V belts and pulleys – Selection of hoisting wireropes and pulleys – Design of Transmission chains and Sprockets.
UNIT II SPUR GEARS AND PARALLEL AXIS HELICAL GEARS
Speed ratios and number of teeth-Force analysis -Tooth stresses - Dynamic effects – Fatigue strength - Factor of safety - Gear materials – Design of straight tooth spur & helical gears based on strength and wear considerations – Pressure angle in the normal and transverse plane - Equivalent number of teeth-forces for helical gears.
FOR OTHER THIRD YEAR BOOKS:THIRD YEAR
UNIT III BEVEL, WORM AND CROSS HELICAL GEARS
Straight bevel gear: Tooth terminology, tooth forces and stresses, equivalent number of teeth. Estimating the dimensions of pair of straight bevel gears. Worm Gear: Merits and demerits - terminology. Thermal capacity, materials-forces and stresses, efficiency, estimating the size of the worm gear pair. Cross helical: Terminology-helix angles-Estimating the size of the pair of cross helical gears.
UNIT IV GEAR BOXES
Geometric progression - Standard step ratio - Ray diagram, kinematics layout -Design of sliding mesh gear box - Design of multi speed gear box for machine tool applications - Constant mesh gear box - Speed reducer unit. – Variable speed gear box, Fluid Couplings, Torque Converters for automotive applications.
UNIT V CAMS, CLUTCHES AND BRAKES
Cam Design: Types-pressure angle and under cutting base circle determination-forces and surface stresses. Design of plate clutches –axial clutches-cone clutches-internal expanding rim clutche s- Electromagnetic clutches. Band and Block brakes - external shoe brakes – Internal expanding shoe brake.
SUBJECT : DESIGN OF TRANSMISSION SYSTEMS
SUBJECT CODE : ME8651
REGULATION : 2017
CONTENT : NOTES AND BOOKS
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