M4.17 Asteel shaft has a starting diameter= 15.00 mm. It is to be inserted into a hole in an expansionfit assembly operation. To be readily inserted, the shaft must be reduced in diameter by coolingDetermine the temperature to which the shaft must be reduced from room temperature (20°C) inorder to reduce its diameter to 14.98 mm. Use Table 4.1 from the book for reference. Round to thenearest 10th of a C

Refer Table, “Volumetric properties in U.S. customary units for selected engineering materials”,…

Answered: M4.17 Asteel shaft has a starting…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.10P

See similar textbooks

Similar questions

How can the theory be applied to find the maximum allowable shear stress for thick walled cylinders?
A square plastic bar (length LP,side dimension sp=193 mm) is inserted inside a hollow.square cast iron tube (length Le = 400 mm. side sc=200 mm,and thickness tc=3 mm). (A)What is the required initial length L,of the plastic bar so that.ilcn it is compressed by some force the final length of bar and tube are equal to length L and,at the same time, the gap beten plastic bar and cast iron tube is closed? (B) Compare initial and final volumes for the plastic bar. Assume that E = 170 GP E,= 2.1GPa.v = 0.3.and = 0.4.
Example 10.11 The drive shaft of a car with diameter 30 mm is designed to transmit a power of 50 kW when rotating at 2100 rpm. The drive shaft material has an allowable shear stress of 230 MPa. i) Determine the maximum shear stress in the shaft. ii) In order to reduce the weight of the vehicle, a hollow shaft is proposed with a maximum outer diameter of 30 mm. Determine, the maximum inner diameter iii) Determine the resultant percentage weight reduction
The rotation or twist in degrees of a shaft, 800 mm long subjected to a torque of 80 N-m, 20 mm in diameter and shear modulus G of 80,000 MPa is:
The rotation in degrees of a shaft, 800 mm long subjected to atorque of 80 N-m, 10 mm in radius and shear modulus of 85 GPais
Part A, B, C Solved below, asking solution for part D, E, F, G
A torque T is applied, as shown in Fig. P-321, to a solid shaft with built-in ends. Prove that the resisting torques at the walls are T1 = Tb/L and T2 = Ta/L. How would these values be changed if the shaft were hollow? (please state given and required)
A round shaft, made of cold-finished AISI 1020 steel, is subjected to a variable torque whose maximum value is 7238 cm-kg. For N  5 on the Soderberg criterion, determine the diameter if (a) the torque is reversed, (b) the torque varies from zero to a maximum, (c) the torque varies from 3141 in-lb to maximum.
A hydraulic cylinder with a bore radius of 100 mm and an outer radius of 200 mmhas been designed to withstand a maximum internal pressure of 200 MPa inservice. During operation, the pressure within the cylinder is retained by a freelysliding piston. The steel used in the manufacture has Young’s modulus of 210GNm-2. In an alternative design, the cylinder has been constructed as a compoundcylinder (duplex cylinder) with the same bore and outer radii by shrink-fitting twotubes of the same steel. The nominal radius at the common interface is 150 mmand the radial interference (shrinkage allowance, δ) is 100 μm (micro-meters).a) Determine using Lame’s equations, the radial and circumferentialstresses at the cylinder bore, common interface, and outer surface.b) Graphically present (sketch) the variation of each of these stresses acrossthe cylinder wall, clearly indicating the values at the inner and outer surfacesof each cylinder.c) Draw the Mohr's circles representing the stresses acting on…
A hollow, circular, cast-iron pipe (Ec =12,000 ksi) supports a brass rod (Eb = 14,000 ksi)and weight W = 2 kips, as shown. The outside diameterof the pipe is dc = 6 in.(a) If the allowable compressive stress in the pipeis 5000 psi and the allowable shortening of thepipe is 0.02 in., what is the minimum requiredwall thickness tc,min? (Include the weights of therod and steel cap in your calculations.)(b) What is the elongation of the brass rod δr due toboth load W and its own weight?(c) What is the minimum required clearance h?
A safety valve, 11 mm in diameter, is to blow off at a pressure of 1.5 MPa. It is held on itsseat by means of a helical compression spring, with initial compression of 16 mm. Themaximum lift of the valve is 27 mm. The ratio of mean coil diameter to wire diameter is5. The spring is made of cold drawn steel wire with ultimate tensile strength of 1400 MPa. (G = 81 370 N/mm2), Calculate:i. Wire diameter;ii. Mean coil diameteriii. Number of active coilsiv. Free lengthv. Pitchvi. Actual spring constantvii. Required Stiffness
Steam of 3.5MPa is transported in a pipe of outside diameter 450mm. (Pressure 3.5MPa) The walls of the pipe is 10mm. A gasket and flat plate is used to block the pipe. If a 40mm diameter bolt can carry a maximum stress of 80MPa and the initial stress in the bolt is 55MPa, how may bolts are needed? What is the circumferential stress in the pipe? Why is there an initial stress in the bolt? What will happen if the stress in the bolts = 2 x initial stress?

SEE MORE QUESTIONS

Recommended textbooks for you

Principles of Heat Transfer (Activate Learning wi…

Mechanical Engineering

ISBN:

9781305387102

Author:

Kreith, Frank; Manglik, Raj M.

Publisher:

Cengage Learning