Text book German demystified

... y' = 0.154 − 37 TE TE = 1074 n A Textbook of Machine Design First of all let us find the module of teeth Let m = Module in mm, and DP = Pitch circle diameter of the pinion in mm We know that ... Ans 1078 n A Textbook of Machine Design Design for the rim The thickness of the rim for the pinion may be taken as 1.6 m to 1.9 m, where m is the module Let us take thickness of...

Ngày tải lên: 25/10/2013, 13:15

... = Actual number of teeth on the gear = where RB m Pitch circle diameter   Module  1086 n A Textbook of Machine Design Notes : The action of bevel gears will be same as that of equivalent spur ... diameter, and d = Dedendum 1084 n A Textbook of Machine Design 30.4 Determination of Pitch Angle for Determina mination for Bevel Gears Consider a pair of bevel gears in mes...

Ngày tải lên: 29/10/2013, 20:15

... = 225 mm The worm and gear is designed as discussed below : Design of worm Let lN = Normal lead, and λ = Lead angle 1114 n A Textbook of Machine Design Worm gear of a steering mechanism in an ... square threads) where φ1 = Angle of friction, such that tan φ1 = µ A gear-cutting machine is used to cut gears 1108 n A Textbook of Machine Design The coefficient of frictio...

Ngày tải lên: 29/10/2013, 20:15

... 2 n 1.2 A Textbook of Machine Design Classifications of Machine Design The machine design may be classified as follows : Adaptive design In most cases, the designer’s work is concerned ... unit of force adopted is such that it produces a unit acceleration to a body of unit mass ∴ F = m.a = Mass × Acceleration 10 n A Textbook of Machine Design In S.I system of uni...

Ngày tải lên: 26/12/2013, 00:17

... properties are important A Textbook of Machine Design standard designation n Indian 32 standard designation carbon–manganese free Table 2.7 Indian standard designation of carbon and carbon–manganese ... engines Mo2 Nil A Textbook of Machine Design standard designation Composition in percentages n Indian 38 standard designation alloy heat resisting Table 2.9 Indian standard desig...

Ngày tải lên: 26/12/2013, 00:17

... the size of the hole, as the billet is forced over it * For complete details, please refer to Authors' popular book ‘A Text Book of Workshop Technology’ 60 n A Textbook of Machine Design 3.10 ... A Textbook of Machine Design Forging Design In designing a forging, the following points should always be considered The forged components should ultimately be able to achiev...

Ngày tải lên: 26/12/2013, 00:17

... specimens of one standard size Since the dimensions of the specimen influence the result, therefore some standard means of comparison of results are necessary 100 n A Textbook of Machine Design ... unnecessary risk of failure The values of factor of safety based on ultimate strength for different materials and type of load are given in the following table: 102 A Textboo...

Ngày tải lên: 26/12/2013, 00:17

... not a direct example of the current chapter 168 n A Textbook of Machine Design Distance of N.A from the top of the flange, yt = y = 28.2 mm Distance of N.A from the bottom of the web, yc = 90 ... We know that area of section at X-X, A = × 22 + × 19 = 123 mm2 144 n A Textbook of Machine Design The various distances are shown in Fig 5.14 We know that radius of curvatu...

Ngày tải lên: 26/12/2013, 00:17

... range of Χ 40% Determine the diameter of shaft if a reduction factor of 1.2 is applied to the variable component of bending stress and shearing stress Assume 222 n A Textbook of Machine Design ... various ways of reducing stress concentration for such cases are shown in Fig 6.12 (a), (b) and (c) 190 n A Textbook of Machine Design 6.14 Factor s to be Considered while Des...

Ngày tải lên: 23/01/2014, 06:20

... Textbook of Machine Design Thickness of pressure tank We know that thickness of pressure tank, t = ∀ 800 p.d # # 24 mm Ans 2!t1 % ∀ 50 ∀ Diameter and thickness of cylinder Let D = Diameter of ... the outer surface of the shell The radial stress is maximum at the inner surface and zero at the outer surface of the shell 234 n A Textbook of Machine Design In the design...

Ngày tải lên: 23/01/2014, 06:20

... diameter of pipe + × Dia of bolt = D + 2t + 2d = 50 + (2 × 12) + (2 × 22) = 118 mm 278 n A Textbook of Machine Design and side of this square, L + 118 + 83.5 mm 2 The sides of the flange must be of ... 10 mm Number of bolts, n = 0.0275 D + 1.6 (D is in mm) where 272 n A Textbook of Machine Design Thickness of flange, Width of flange, tf = 1.5 t + mm B = 2.3 d Outsi...

Ngày tải lên: 23/01/2014, 06:20

... First of all, let us find the centre of gravity (G) of the rivet system Let x = Distance of centre of gravity from OY, y = Distance of centre of gravity from OX, 326 n A Textbook of Machine Design ... the standard size of the rivet hole (d ) is 23 mm and the corresponding diameter of the rivet is 22 mm Ans 302 n A Textbook of Machine Design Pitch of rivets Let...

Ngày tải lên: 23/01/2014, 06:20

... welding (d) all of these 376 n A Textbook of Machine Design In transverse fillet welded joint, the size of weld is equal to (a) 0.5 × Throat of weld (b) Throat of weld (c) (d) × Throat of weld The ... 360 n Let A Textbook of Machine Design la lb l P a b f = = = = = = = Length of weld at the top, Length of weld at the bottom, Total length of weld = la + lb Axial loa...

Ngày tải lên: 23/01/2014, 06:20