Fundamentals of machine design volume 4 by p orlov, a troitsky

... that depends on the nature of joints Some representative values of C’s are tabulated in Table below Table Values of C for various types of joints Type of joint Value of C Metal to metal joint ... adequate load of variable magnitude Design of two important mechanical joints is discussed below, namely, bolted and welded joints Bolted joints with variable loading: Consider des...

Ngày tải lên: 18/10/2013, 09:15

... used design parameters 13.1.1 Flexible Machine Elements Belt drives are called flexible machine elements Flexible machine elements are used for a large number of industrial applications, some of ... of rotation is observed Version ME , IIT Kharagpur 13.1.3 Nomenclature of Open Belt Drive β dL dL - Diameter of the larger pulley dS – Diameter of the smaller pulley αS αL αL-...

Ngày tải lên: 25/10/2013, 12:15

... belt Coefficient of friction of the belt material Coefficient of friction for a pair of belt material and pulley material is provided in design data book 13.2.4 Modification of Belt stress When ... specifications Types of design factors A sample design procedure 13.2.1 Flat belt drives Flat belts drives can be used for large amount of power transmission and there is no upp...

Ngày tải lên: 25/10/2013, 12:15

... transmission falls in the lower side of the given range Another restriction of choice of belt section arises from the view point of minimum pulley diameter If a belt of higher thickness (higher section) ... Each type of belt section has a power rating The power rating is given for different pitch diameter of the pulley and different pulley speeds for an angle of wrap of 180ο...

Ngày tải lên: 29/10/2013, 19:15

... check for proper selection of design zone is required The selection of design zone is explained below Version ME , IIT Kharagpur Selection of design zone Coefficient of friction, f Boundary lubrication ... Machine Design, Eurasia Publishing House, New Delhi Sharma, C.S and Purohit Kamalesh, Design of Machine Elements, Prentice Hall of India, New Delhi, 2003 Black P.H...

Ngày tải lên: 29/10/2013, 19:15

... list of design disciplines e.g ship design, building design, process design, bridge design, clothing or fashion design and so on Here we are concerned with machine design We now define a machine ... ‘ in view of the reliability in machine design A.4: Reliability of a designed machine is concerned with the proper functioning of the elements and the machine as a wh...

Ngày tải lên: 17/12/2013, 11:15

... 2) Machine design- an integrated approach by Robert L Norton, Pearson Education Ltd 3) A textbook of machine design by P.C.Sharma and D.K.Agarwal, S.K.Kataria and sons, 1998 4) A text book of machine ... composition of 88% Cu, 10% Sn and 2% Zn Brass is a Cu-Zn alloy with the typical composition of red brass of 85% Cu , 15% Zn Q.6: List at least five important non-metals com...

Ngày tải lên: 17/12/2013, 11:15

... build-up or manufacture a product range The range of operational speeds of a machine or the range of powers of a typical machine may be also as per a series of preferred numbers Version ME, IIT Kharagpur ... other, the nature of fit is dependent on the limits of tolerances and fundamental deviations of the mating parts The nature of assembly of two mating parts is defi...

Ngày tải lên: 17/12/2013, 11:15

... limitations Design of members subjected to combined bending, torsion and axial loading Buckling of beams 2.1.1 Introduction Stresses are developed in machine elements due to applied load and machine design ... that the state of stress at a point can be given by six stress components only It is important to understand the implication of this state of stress at a point in the...

Ngày tải lên: 17/12/2013, 11:15

... Superposition of axial and bending stresses Transformation of plane stresses; principal stresses Combining normal and shear stresses 2.2.1 Introduction The elements of a force system acting at a section of ... section X-X, Q the first moment of area, I the moment of inertia, t the width at which transverse shear is calculated, J the polar moment of inertia and r the radius of...

Ngày tải lên: 25/12/2013, 23:18

... strains may be derived in terms of these displacements 2.3.2 Normal strains Consider an element AB of length δx ( figure-2.3.2.1) If displacement of end A is u, that of end B is u + ∂u ∂u δx This ... the principal strains in terms of principal stresses as [ σ1 − ν(σ2 + σ3 )] E ε = [ σ2 − ν(σ3 + σ1 ) ] E ε3 = [ σ3 − ν (σ1 + σ ) ] E ε1 = From the point of view of volume change or...

Ngày tải lên: 25/12/2013, 23:18

... that the design methodology may be based on a particular failure criterion Theories of failure are essentially a set of failure criteria developed for the ease of design In machine design an ... 3.1.7Summary of this Lesson Different types of loading and criterion for design of machine parts subjected to static loading based on different failure theories have been demon...

Ngày tải lên: 25/12/2013, 23:18

... lim it of notch free specimens Endurance lim it of notched specimens Another term called Notch sensitivity factor, q is often used in design and this is defined as q= kf − kt − The value of ‘q’ ... with r/d of a stepped shaft for different values of D/d subjected to uni-axial loading (Ref.[2]) In design under fatigue loading, stress concentration factor is used in modifying the...

Ngày tải lên: 25/12/2013, 23:18

... 1) Design of machine elements by M.F.Spotts, Prentice hall of India,1991 2) Machine design- an integrated approach by Robert L Norton, Pearson Education Ltd, 2001 3) A textbook of machine design ... Objectives At the end of this lesson, the students should be able to understand • Design of components subjected to low cycle fatigue; concept and necessary formulations •...

Ngày tải lên: 25/12/2013, 23:18

... fasteners • Different types of pin joints • Different types of keys and their applications 4.1.1 Introduction: Types of fasteners A machine or a structure is made of a large number of parts and they need ... pin 4.1.2.3F- Typical use of a split pin (Ref.[6]) 4.1.3 Keys Steel keys are widely used in securing machine parts such as gears and pulleys There is a large variety of...

Ngày tải lên: 25/12/2013, 23:18