fundamentals of machine components design

Ngày tải lên: 27/06/2014, 05:20

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 27/06/2014, 17:20

... representative values of C’s are tabulated in Table 1 below. Table 1. Values of C for various types of joints Type of joint Value of C Metal to metal joint with through bolt 0.00 – 0.10 Soft copper ... should learn: • Design of a bolted joint with fluctuating loading • Design of welded joints with variable loading 1. Variable loading in mechanical joints: Machine parts are often subjected ... loading: Because of many intricacies involved in design of a welded joint, codes are extensively used to design such joint when it experiences variable loading. The value of the maximum fluctuating...

Ngày tải lên: 18/10/2013, 09:15

... Nomenclature of Open Belt Drive d L - Diameter of the larger pulley d S – Diameter of the smaller pulley α L - Angle of wrap of the larger pulley α S – Angle of wrap of the smaller ... and Gupta J.K., Text book on Machine Design, Eurasia Publishing House, New Delhi. 5. Sharma, C.S. and Purohit Kamalesh, Design of Machine Elements, Prentice Hall of India, New Delhi, 2003. ... What are the advantages of a belt drive? A1. The advantages of a belt drive are that, it can absorb a good amount of shock and vibration. It can take care of some degree of misalignment between...

Ngày tải lên: 25/10/2013, 12:15

... 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 ... The decision of the material to be used depends on the type of service. No. of ply and Thickness Ply is the number of layers as indicated earlier. Therefore, the number of ply is decided ... At the end of this lesson, the students should be able to understand: • Features of flat belt drives • Flat belt materials • Flat belt stresses and its specifications • Types of design factors...

Ngày tải lên: 25/10/2013, 12:15

... R.S. and Gupta J.K., Text book on Machine Design, Eurasia Publishing House, 5. Sharma, C.S. and Purohit Kamalesh, Design of Machine Elements, Prentice Hall of India, New Delh Version 2 ME , ... end of this lesson, the students should be able to understand: • Features of V-belt drives • Nomenclature of V-belt, types of V-belt section and its power rating • Selection procedure of ... from the design table, is the required belt length. From section (13.3.7) above, the design power and modified power rating of a belt can be obtained. Therefore, Design Power Number of belts Modified...

Ngày tải lên: 29/10/2013, 19:15

... the end of this lesson, the students should be able to understand: Types of bearings Comparison of bearing friction characteristics Basics of hydrodynamic theory of lubrication Design methods ... hydrodynamic theory of lubrication Petroff (1883) carried out extensive experimental investigation and showed the dependence of friction on viscosity of lubricant, load and dimensions of the journal ... of design zone Coefficient of friction, f Bearing characteristic number, N p μ Boundary lubrication Hydrodynamic lubrication A B C D Design lower limit Fig. 14.1.5 Results of...

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 ... end of this lesson, the students should have the knowledge of • Basic concept of design in general. • Concept of machine design and their types. • Factors to be considered in machine design. ... Discuss ‘factor of safety ‘ 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...

Ngày tải lên: 17/12/2013, 11:15

... 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. 3) A textbook of machine design ... atleast 5 important mechanical properties of materials to be considered in machine design. A.7: Some important properties of materials to be considered in design are: Elastic limit, yield and ... choice of materials in machine design. A.8: Resilience is defined as the property of a material that enables it to resist shock and impact. The property is important in choosing materials for machine...

Ngày tải lên: 17/12/2013, 11:15

... 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 2 ... Kamalesh, Design of Machine Elements, Prentice Hall of India, New Delhi, 2003. 4. Chapman, W.A.J., Workshop Technology (part 2), ELBS, 4 th edition, 1975 5. Maitra, G.M., Handbook of Design, ... 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 defined by three types of fit system,...

Ngày tải lên: 17/12/2013, 11:15

... 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 design of machine elements ... and its 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 ... cast iron machine parts of cross-sections shown in figure-2.1.7.2 are subjected to bending moments. Which of the two sections can carry a higher moment and determine the magnitude of the applied...

Ngày tải lên: 17/12/2013, 11:15

... At the end of this lesson, the student should be able to understand • Elements of force system at a beam section. • Superposition of axial and bending stresses. • Transformation of plane stresses; ... 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 the circular cross-section. ... any section a compressive stress of π 2 4F d and a bending stress of My I are produced. Here d is the diameter of the circular bar, I the second moment of area and the moment is PL 2 ...

Ngày tải lên: 25/12/2013, 23:18

... equation The state of strain at a point can be completely described by the six strain components and the strain components in their turns can be completely defined by the displacement components u, ... 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 x ∂ +δ ∂ x . This gives an increase in length of ( u u x ∂ +δ ∂ x -u) and therefore ... discussed. 2.3.9 Reference for Module-2 1) Mechanics of materials by E.P.Popov, Prentice hall of India, 1989. 2) Mechanics of materials by Ferdinand P. Boer, E. Russel Johnson, J.T Dewolf,...

Ngày tải lên: 25/12/2013, 23:18

... 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 element is said to have failed if it ... Summary 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 demonstrated. Development of ... properties. 3.1.3 Theories of failure When a machine element is subjected to a system of complex stress system, it is important to predict the mode of failure so that the design methodology may...

Ngày tải lên: 25/12/2013, 23:18

... change in length of 0.2 mm. Determine the maximum stress developed in the bar. Take E= 200 GPa. 3.2.4.1F A.1: Total change in length of the bar is made up of three components ... 3.2.1.4F- Variation of theoretical stress concentration factor 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, ... figure-3.2.3.1 ‘a’ is the radius of the hole and at r=b, b>>a the stresses are not affected by the presence of the hole. Version 2 ME, IIT Kharagpur 3.2.2 Methods of reducing stress concentration...

Ngày tải lên: 25/12/2013, 23:18

... 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 ... the students should be able to understand • Design of components subjected to low cycle fatigue; concept and necessary formulations. • Design of components subjected to high cycle fatigue loading ... S.K.Kataria and sons, 1998. 4) Mechanical engineering design by Joseph E. Shigley, McGraw Hill, 1986. 5) Fundamentals of machine component design, 3 rd edition, by Robert C. Juvinall and Kurt...

Ngày tải lên: 25/12/2013, 23:18

... applications. 4.1.1 Introduction: Types of fasteners A machine or a structure is made of a large number of parts and they need be joined suitably for the machine to operate satisfactorily. Parts ... the end of this lesson, the students should have the knowledge of • Fasteners and their types: permanent and detachable fasteners. • Different types of pin joints. • Different types of keys ... 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 machine keys and they...

Ngày tải lên: 25/12/2013, 23:18

Ngày tải lên: 25/12/2013, 23:18

Ngày tải lên: 25/12/2013, 23:18