Tài liệu Fundamentals of Machine Design P4 pdf

... 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 ... 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 magn...

Ngày tải lên: 17/12/2013, 11:15

... 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 ... Q.1: Define machine design. A.1: A machine is a combination of several machine elements arranged to work together as a whole to accomplish specific purposes. Machine d...

Ngày tải lên: 17/12/2013, 11:15

... coupling Design details of such couplings will be discussed in the next lesson. The main features of the design are essentially (a) Design of bolts (b) Design of hub (c) Overall design and ... the end of this lesson, the students should have the knowledge of • The function of couplings in machinery. • Different types of couplings: rigid and flexible couplin...

Ngày tải lên: 23/01/2014, 04:20

... Modification of Soderberg diagram • Estimation of material properties for helical spring • Types of helical springs • Design considerations for buckling and surge. 7.2.1 Design of helical ... safe frequency of a helical spring? A3. Safe frequency for design should be at least 20 times less than the fundamental frequency of the spring to take care of more number...

Ngày tải lên: 23/01/2014, 04:20

... context of shaft, design for stiffness means that the lateral deflection of the shaft and/or angle of twist of the shaft should be within some prescribed limit. Therefore, design for stiffness ... δ = f (applied load, material property, moment of inertia and given dimension of the beam). From the expression of moment of inertia, and known design parameters, inclu...

Ngày tải lên: 23/01/2014, 05:20

... thickness. Stresses in a spherical shell are also discussed. Basic design principle of thin cylinders are considered. Design of both welded and riveted joints for the shells are discussed. Version ... the design procedure of a pressure vessel. We consider a mild steel vessel of 1m diameter comprising a 2.5 m long cylindrical section with hemispherical ends to sustain an in...

Ngày tải lên: 23/01/2014, 05:20

... Module 1 Fundamentals of machine design Version 2 ME, IIT Kharagpur 2a σ ε (b) Plasticity- This is associated with the permanent deformation of material when the stress ... 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 commonly us...

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., Ha...

Ngày tải lên: 17/12/2013, 11:15

Ngày tải lên: 23/12/2013, 01:16

... 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...

Ngày tải lên: 25/12/2013, 23:18