JNTUK B.Tech Design of Machine Members – I gives you detail information of Design of Machine Members – I R13 syllabus It will be help full to understand you complete curriculum of the year.
Course Objectives
- The student shall gain appreciation and understanding of the design function in mechanical engineering, the steps involved in designing and the relation of design activity with manufacturing activity
- Selection of proper materials to different machine elements based on their physical and mechanical properties.
- Learn and understanding of the different types of failure modes and criteria.
- Procedure for the different machine elements such as fasteners, shafts, couplings, keys, axially loaded joints etc.
UNIT – I : INTRODUCTION: General considerations in the design of Engineering Materials and their properties – selection –Manufacturing consideration in design, tolerances and fits –BIS codes of steels.
STRESSES IN MACHINE MEMBERS: Simple stresses – combined stresses – torsional and bending stresses – impact stresses – stress strain relation – various theories of failure – factor of safety – design for strength and rigidity – preferred numbers. the concept of stiffness in tension, bending, torsion and combined situations – static strength design based on fracture toughness.
UNIT – II : STRENGTH OF MACHINE ELEMENTS: Stress concentration – theoretical stress concentration factor – fatigue stress concentration factor notch sensitivity – design for fluctuating stresses – endurance limit – estimation of endurance strength – goodman’s line – soderberg’s line – modified goodman’s line.
UNIT – III : Riveted and welded joints – design of joints with initial stresses – eccentric loading. Bolted joints – design of bolts with pre-stresses – design of joints under eccentric loading – locking devices – both of uniform strength, different seals.
UNIT – IV : KEYS, COTTERS AND KNUCKLE JOINTS: Design of keys-stresses in keys-cotter joints-spigot and socket, sleeve and cotter, jib and cotter joints- knuckle joints.
SHAFTS: Design of solid and hollow shafts for strength and rigidity – design of shafts for combined bending and axial loads – shaft sizes – BIS code. Use of internal and external circlips, gaskets and seals (stationary & rotary).
UNIT – V : SHAFT COUPLING: Rigid couplings – muff, split muff and flange couplings, flexible couplings – flange coupling (modified).
UNIT – VI : MECHANICAL SPRINGS: Stresses and deflections of helical springs – extension -compression springs – springs for fatigue loading, energy storage capacity – helical torsion springs – co-axial springs, leaf springs.
TEXT BOOKS
- Machine Design, V.Bandari, TMH Publishers
- Machine design – Pandya & Shah
- Machine Design PSG Data hand book
REFERENCES
- Design of Machine Elements / V.M. Faires
- Machine design / Schaum Series.
- Data books (1) PSG College of technology (2) Mahadevan
Course outcomes
Upon successful completion of this course student should be able to:
- Apply the design procedure to engineering problems, including the consideration of technical and manufacturing constraints.
- Select suitable materials and significance of tolerances and fits in critical design applications.
- Utilize design data hand book and design the elements for strength, stiffness and fatigue.
- Identify the loads, the machine members subjected and calculate static and dynamic stresses to ensure safe design.
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