JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

DESIGN PHILOSOPHY: Design process, Problem formation, Introduction to product design, Various design models-Shigley model, Asimov model and Norton model, Need analysis, Strength considerations -standardization. Creativity, Creative techniques, Material selections, Notches and stress concentration, design for safety and Reliability

UNIT - II

Embodiment & Modelling: introduction, size and strength, scheme drawing, form design, provisional materials and process determination, design for assembly and manufacture, industrial design, principles. Mathematical modelling, optimization, scale models, simulation, principles.

UNIT - III

Economic Factors Influencing Design: Economic analysis, Break-even analysis, Human engineering considerations, Ergonomics, Design of controls, Design of displays. Value engineering, Material and process selection in value engineering, Modern approaches in design.

UNIT - IV

Failure Theories: Static failure theories, Distortion energy theory, Maximum shear stress theory, Coulomb-Mohr’s theory, Modified Mohr’s theory, Fracture mechanics theory., Fatigue mechanisms, Fatigue failure models, Design for fatigue strength and life, creep: Types of stress variation, design for fluctuating stresses, design for limited cycles, multiple stress cycles, Fatigue failure theories ,cumulative fatigue damage, thermal fatigue and shock, harmful and beneficial residual stresses, Yielding and transformation

UNIT - V

Surface Failures: Surface geometry, mating surfaces, oil film and their effects, design values and procedures, adhesive wear, abrasive wear, corrosion wear, surface fatigue, different contacts, dynamic contact stresses, surface fatigue failures, surface fatigue strength, Problem formulation for design optimization Detail design: introduction, factor of safety, selection procedure for bought out components, Robust design, principles

REFERENCES:

• 1. Engineering Design / George E Dieter / McGraw Hill /2008
• 2. Engineering design principles/ Ken hurst/ Elsevier
• 3. Machine Design An Integrated Approach / Robert L. Norton / Prentice-Hall New Jersey, USA.
• 4. Engineering design process/ Yusef Haik, Tamer M.Shahin/ cengage learning.
• 5. Engineering by design/ Gerard Voland / pearson
• 6. Engineering design/ G.Pahl, W. Beitz,J, Feldhusen, K.H. grote/ springer international edition
• 7. Mechanical design/ Manjula B Waldron, Kenneth J. Waldron/ springer international edition
• 8. Product Design and Manufacturing /A.K. Chitale and R.C. Gupta / Prentice Hall M. Tech I Year – II Sem. (Engineering Design)