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What You Need to Know About Design of Machine Elements-I by JBK Das and Its Contents


Design Of Machine Elements 1 Jbk Das.pdf: A Review of a Useful Book for Mechanical Engineers




If you are a mechanical engineering student or a professional who wants to learn more about the design of machine elements, you might want to read Design Of Machine Elements 1 Jbk Das.pdf. This is a book by J.B.K. Das and P.L. Srinivasa Murthy, published by Sapna Book House in 2019. The book covers various topics related to the design of machine elements, such as stress analysis, theories of failure, design for static and impact strength, design of shafts and couplings, design of springs and screws, design of fasteners and welded joints, design of clutches and brakes, design of gears and gear trains, design of bearings and flywheels, and more. The book is based on the new syllabus of VTU and is also useful for GATE preparation. In this article, we will review some of the features and highlights of Design Of Machine Elements 1 Jbk Das.pdf and why it is a valuable book for mechanical engineers.




Design Of Machine Elements 1 Jbk Das.pdf



What is Design Of Machine Elements 1 Jbk Das.pdf?




Design Of Machine Elements 1 Jbk Das.pdf is a book that provides a comprehensive and systematic approach to the design of machine elements. The book is written by J.B.K. Das and P.L. Srinivasa Murthy, who are both professors of mechanical engineering at R.V. College of Engineering, Bangalore. The book is divided into 14 chapters that cover different aspects of machine element design, such as:


  • Introduction: This chapter defines the terms and concepts related to machine design, such as normal, shear, biaxial and triaxial stresses, stress tensor, principal stresses, engineering materials and their mechanical properties, stress-strain diagrams, stress analysis, design considerations, codes and standards.



  • Design For Static & Impact Strength: This chapter explains the concepts and methods of designing machine elements for static and impact strength, such as static loads and factor of safety, theories of failure (maximum normal stress theory, maximum shear stress theory, maximum strain energy theory), impact loading (sudden load theory), fatigue loading (S-N curve), endurance limit.



  • Design Of Shafts And Couplings: This chapter deals with the design of shafts and couplings for transmitting power and torque, such as types of shafts (solid shafts, hollow shafts), stresses in shafts (torsional stress, bending stress), deflection and slope in shafts (torsional deflection), design of shafts based on strength and rigidity criteria (ASME code), types of couplings (rigid couplings, flexible couplings), design of couplings (flange coupling, muff coupling).



  • Design Of Springs And Screws: This chapter covers the design of springs and screws for various applications, such as types of springs (helical springs, leaf springs), stresses in springs (shear stress), deflection in springs (spring constant), design of springs based on strength and stiffness criteria (Wahl factor), types of screws (power screws, thread forms), stresses in screws (axial stress), efficiency of screws (friction angle), design of screws (square thread screw).



Design Of Fasteners And Welded Joints: This chapter discusses the design of fasteners and welded joints for joining machine elements securely, such as types of fasteners (bolts,


nuts, washers), stresses in fasteners (tensile stress), design of fasteners based on strength


and stiffness criteria (bolted joint analysis), types of welded joints (butt welds,


fillet welds), stresses in welded joints (shear stress), design of welded joints based on


  • strength criteria (weld size).



Design Of Clutches And Brakes: This chapter describes the design of clutches and brakes for controlling the speed and motion of machines, such as types of clutches (friction clutches,


cone clutches), types of brakes (block brakes,


band brakes), friction in clutches and brakes


(coefficient of friction), torque transmission in clutches and brakes


(uniform pressure theory,


uniform wear theory),


design


of clutches


and brakes based on torque capacity criteria


(clutch size,


  • brake size).



Design Of Gears And Gear Trains: This chapter explains the design


of gears


and gear trains for transmitting power


and motion between parallel,


intersecting or skew shafts,


such as types


of gears


(spur gears,


helical gears,


bevel gears,


worm gears),


types


of gear trains


(simple gear train,


compound gear train),


terminology


of gears


(pitch circle diameter,


module,


pressure angle),


stresses in gears


(bending stress,


contact stress),


design


of gears based on strength criteria


(Lewis equation,


AGMA equation),


design


of gear trains based on speed ratio criteria