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1. Fundamentals of Design
1.1 Machine design philosophy and phases in design, design considerations.
1.2(a) Types of loads, concept of stresses, bearing pressure, bending and torsion stresses,
1.2(b) Principal stresses,
1.2(c) Stress-strain diagram. (Simple Numerical)
1.3 Factor of Safety, conditions for selection of F.S
1.4 Stress concentration meaning, causes and remedies.
1.5(a) Designation of materials as per IS and introduction to International standards,
1.5(b) Advantages of standardization,
1.5(c) Use of design data book,
1.5(d) Use of standards in design and preferred numbers series.
1.6(a) Concept of creep,
1.6(b) Fatigue,
1.6(c) S-N curve,
1.6(d) Endurance limit.
1.7(a) Maximum principal stress theory
1.7(b) Maximum shear stress theory.
1.8(a) Modern Design considerations Ergonomics and aesthetic considerations in design.
1.8(b) Ecology, social consideration and Concept of Product Design.
2. Design of Joint Lever and Offset links
2.1(a) Design of Cotter Joint,
2.1(b) Design of Knuckle Joint,
2.2 Turnbuckle.
2.3 Design of Levers:- Hand/Foot Lever
2.4 Bell Crank Lever,
2.5 Lever for lever safety valve,
2.6(a) Design of Off-set links,
2.6(b) C-clamp,
2.6(c) Overhang Crank
3. Design of shafts, keys and Couplings
3.1(a) Types of shafts,
3.1(b) Shaft materials, Standard sizes,
3.1(c) Design of solid and hollow shafts based on strength and rigidity criteria.
3.2(a) Design of hollow and solid shaft for combined bending and twisting moments and considering the effect of shock and fatigue.
3.2(b) ASME code of design for line shafts supported between bearings with one or two pulleys in between or ORC overlitng pulley.
3.3(a) Types of keys, effect of key way on the strength of shaft.
3.3(b) Design of rectangular and square sunk key.
3.4 Types of couplings, Design of muff coupling, langed couplings (protected and unprotected) and Bushed pin type flexible coupling.
4. Design of power screws and Fasteners
4.1(a) Basic concepts of power screw Thread Profiles used for power Screws,
4.1(b) Relative merits and demerits of each,
4.1(c) Self locking and overhauling properties,
4.1(d) Torque required to overcome thread friction,
4.1(e) Efficiency of power screws,
4.1(f) Types of stresses induced.
4.2(a) Design of Screw Jack,
4.2(b) Toggle Jack (only screw and nut).
4.3(a) Stresses in Screwed fasteners,
4.3(b) Bolts of Uniform Strength,
4.3(c) Design of Bolted Joints subjected to eccentric loading.
4.4(a) Design of parallel and transverse fillet welds,
4.4(b) Axially loaded symmetrical Scection.
5. Design of Springs
5.1(a) Classification and Applications of Springs,
5.1(b) Spring - terminology, materials specifications.
5.1(c) Stresses in helical tension and compression springs,
5.1(d) Wahl's correction factor,
5.1(e) Deflection of springs.
5.1(f) Energy stored in springs.
5.2 Design of Helical tension and compression springs subjected to concentric applied loads like I.C. engine valves, weighing balance, railway buffers.
5.3 Leaf springs - construction and applications.
6. Selection of Antifriction Bearings
6.1 Classification of Bearings — Sliding contact and rolling contact.
6.2(a) Terminology of Ball bearings — life load relationship.
6.2(b) Basic static load rating and basic dynamic load rating,
6.3 Selection of ball bearings using manufacturer's catalogue
6.4(a) Design of spur gear using Lewis and Buckinghams equation (Simple Numerical).
6.4(b) Selection gears from standard sizes
Syllabus PDF
Books / Notes PDF
Important Questions PDF
Lab Manual Answers PDF
External Pratical VIVA / Oral Practice Question PDF
Machine design
is an integral part of the field of engineering, focusing on the creation and
improvement of mechanical systems and devices. The Maharashtra State Board of
Technical Education (MSBTE) offers a Diploma course in Elements of Machine
Design, a program designed to provide students with a comprehensive
understanding of the fundamental principles and practical applications of
machine design. A well-designed machine not only enhances productivity but also
reduces maintenance costs and enhances overall performance.
The Structure of the MSBTE
Diploma Course
Theoretical Component
- Machine Design Fundamentals: Students learn
the foundational principles of machine design, including design processes
and calculations.
- Material Selection: Understanding the
properties and characteristics of materials used in machine components.
- Stress Analysis: Learning how to analyze the
stresses and strains that machines endure.
- Design of Machine Elements: Designing
individual components, such as shafts, bearings, and gears.
- Lubrication and Bearings: Understanding how
lubrication and bearings affect machine performance.
- Fasteners and Connections: Exploring the
importance of fasteners and connections in machine assembly.
- Gears and Gear Trains: Delving into the
world of gears, an essential component in most machines.
Practical Component
Career Opportunities
- Design Engineers: Graduates can work as
design engineers, responsible for creating and improving machine
components.
- Production Engineers: Production engineers
oversee the manufacturing process and ensure machines are built
efficiently.
- Quality Control Engineers: Quality control
engineers are responsible for ensuring that machines meet industry
standards and perform as intended.
Here, we introduce you to a
selection of insightful video lectures on the "Elements of Machine
Design."
1. Machine Design Fundamentals
2. Material Selection in
Machine Design
3. Stress Analysis in Machine
Design
4. Design of Machine Elements
5. Lubrication and Bearings
6. Fasteners and Connections
7. Gears and Gear Trains
8. Real-World Applications and
Case Studies
9. Machine Design Software
Tools
10. Advanced Topics in Machine
Design
These video lecture series provide an excellent resource for expanding your knowledge of machine design. Whether you're a student, a professional engineer, or someone simply interested in the field, these lectures offer valuable insights and expertise to help you excel in the world of machine design.