ME3491 Design of Machine Elementsents
Prepared by
Er.NANDHAKUMAR (Admin)
Important questions
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Unit-1
1.Bending and torsional stress equation
2.calculation of stresses for various load
3.design based stiffness
Unit-2
1.Design of solid and hollow shafts
2.Couplings
Unit-3 Don't share as screenshot
1.types of joint and explain detailed
2.structures of welded joints
3.explain bonded joints
Unit-4
1.types of spring and optimization of helical spring
2.rims and arms of flywheel
3.connecting rods (crank shaft)
Unit-5 Don't share as screenshot
1.Hydrodynamic journal bearing
2.slection of rolling contact bearing
**Very important questions are bolded and may be asked based on this topic
PART-C
1.Compulsory Questions {a case study where the student will have to read and analyse the subject }
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*These questions are expected for the exams This may or may not be asked for exams All the best.... from admin Santhosh
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Contact uS
*These questions are expected for the exams This may or may not be asked for exams
All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements
If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctor UNIT I STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS
Introduction to the design process — factors influencing machine design, selection of materials based on mechanical properties — Preferred numbers, fits and tolerances — Direct, Bending and torsional stress equations — Impact and shock loading — calculation of principle stresses for various load combinations, eccentric loading — curved beams — crane hook and ?C? frame- Factor of safety — theories of failure — Design based on strength and stiffness — stress concentration — Design for variable loading.
UNIT II SHAFTS AND COUPLINGS
Design of solid and hollow shafts based on strength, rigidity and critical speed — Keys, keyways and splines — Rigid and flexible couplings.
UNIT III TEMPORARY AND PERMANENT JOINTS
Threaded fastners — Bolted joints including eccentric loading, Knuckle joints, Cotter joints — Welded joints, riveted joints for structures — theory of bonded joints.
UNIT IV ENERGY STORING ELEMENTS AND ENGINE COMPONENTS
Various types of springs, optimization of helical springs — rubber springs — Flywheels considering stresses in rims and arms for engines and punching machines- Connecting Rods and crank shafts.
UNIT V BEARINGS
Sliding contact and rolling contact bearings — Hydrodynamic journal bearings, Sommerfeld Number, Raimondi and Boyd graphs, ? Selection of Rolling Contact bearings.
Introduction to the design process — factors influencing machine design, selection of materials based on mechanical properties — Preferred numbers, fits and tolerances — Direct, Bending and torsional stress equations — Impact and shock loading — calculation of principle stresses for various load combinations, eccentric loading — curved beams — crane hook and ?C? frame- Factor of safety — theories of failure — Design based on strength and stiffness — stress concentration — Design for variable loading.
UNIT II SHAFTS AND COUPLINGS
Design of solid and hollow shafts based on strength, rigidity and critical speed — Keys, keyways and splines — Rigid and flexible couplings.
UNIT III TEMPORARY AND PERMANENT JOINTS
Threaded fastners — Bolted joints including eccentric loading, Knuckle joints, Cotter joints — Welded joints, riveted joints for structures — theory of bonded joints.
UNIT IV ENERGY STORING ELEMENTS AND ENGINE COMPONENTS
Various types of springs, optimization of helical springs — rubber springs — Flywheels considering stresses in rims and arms for engines and punching machines- Connecting Rods and crank shafts.
UNIT V BEARINGS
Sliding contact and rolling contact bearings — Hydrodynamic journal bearings, Sommerfeld Number, Raimondi and Boyd graphs, ? Selection of Rolling Contact bearings.