12. A 2 7/16-in. countershaft in a machine shop transmits 52 hp at 315 rpm. It is made of AISI 1117, as rolled, and supported upon bearings A and B, 59-in. apart. Pulley C receives the power via horizontal belt, and pulley D delivers it vertically downward, as shown. Calculate N based on the Distortion Energy Theory considering varying stresses. A 25 Pulley- -15-0 59" D 18" C -18" Pulley B

12. A 2 7/16-in. countershaft in a machine shop transmits 52 hp at 315 rpm. It is made of AISI 1117, as rolled, and supported upon bearings A and B, 59-in. apart. Pulley C receives the power via horizontal belt, and pulley D delivers it vertically downward, as shown. Calculate N based on the Distortion Energy Theory considering varying stresses. A 25 Pulley- -15-0 59" D 18" C -18" Pulley B

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

wormgerar helical sheißtleught 5 7 18.45 mm shaft leugh at 7 15 13.85 mm of 5 and 6 is 100% 4,5,6;7 sporgear - tangeural and axial force. to gear 5,6, 7? applied Find force given implement power = 11 отрит Output power = 0.53 W ourpur speed = 8.9 rev/min number of Death: m = 0.0005 N₂=1 №₂ = 24 M4 = 12 ala N₁₁ = 28 16 = 10 N₂=1445 Make Assumption if not enough information
Figure below shows a rotating shaft simply supported in ball bearings at A and D and loaded by a nonrotating orce Fof 6.8 kN. Using ASTM "minimum" strengths, estimate the life of the part. 6T td7 (a) Shaft drawing showing all dimensions in millimeters; all fillets 3-mm radius. The shaft rotates and the load is stationary; material is machined from AISI 1050 cold-drawn steel. (b) Bending moment diagram.
Use the general shaft layout given and determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding. Check the slopes at the bearings for satisfaction of the recommended limits in Table 7-2. Assume that the deflections for the pulleys are not likely to be critical. 500 lbf 75 lbf 8-in dia. Bearing at O 500 lb d 10.0" 75 lb Material 1040 Q and T 18 in Use the following shaft layout assuming a pulley transmits torque through a key and keyseat at location A to another pulley at location B. Assume the tensions in the belt at pulley B are T₁ and T2, where T₁ is 15% of T2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 10-in dia. 12 in T₂ T₁ The mean torque is 0 lb-in. The alternating torque is 2125 lb-in. The mean moment is 0 lb-in. The alternating moment is 5000 lb-in. 18.0" pulley diameter = 8.0" Sut 113 kpsi 10.0 B T2 T1 pulley diameter = 10.0" Sy 86 kpsi 12.0"…
A stepped shaft has dimensions of D = 2 in., d = 1 in., and r= 0.1 in. It is machined from AISI steel of 200 Bhn hardness. The load is fully reversed axial torsion. 30 seconds of time history of the nominal torsional stress in the 1 in, section of the shaft, Tnom(t) = Tr/J, is shown (dots indicate the beginning/end of each load cycle; there are 20 cycles total in 30 seconds.). This duty cycle continues repeating. (a) Use Miner's rule to estimate the life of the shaft in cycles. (b) What is the expected life in hours. Su 0.5HB for steel. 30 20 10 -10 -20 -30 30 seconds D=2 in. d=1 in. f= 0.1 in. 200 Bhn
The sbaft shown overhangs a bearing on the right and has the following dimensions: a - 5 in., b - 4 in., and - 10 in. The material is AISI C1040. annealed. This shaft is subjected to a torque T 10,000 in-lb., forces F - 10,000 lb. and F, 20,000 lb. Using a atatio-design approach, determine the diameter D for N 2.5, with eomputa- %3D Answer: a) Dia. = _inches %3D %3D %3D tions from the maximum shear stress theory. Note: Use Sy = 48,000 psi F2 N M
Use the general shaft layout given and determine critical diameters of the shaft based on infinite fatigue life with a design factor of 1.5. Check for yielding. Check the slopes at the bearings for satisfaction of the recommended limits in Table 7-2. Assume that the deflections for the pulleys are not likely to be critical. 10 in 500 lbf 75 lbf 8-in dia. Bearing at O 10.0" 500 lb d 75 lb Material 1040 Q and T 18 in Use the following shaft layout assuming a pulley transmits torque through a key and keyseat at location A to another pulley at location B. Assume the tensions in the belt at pulley Bare T₁ and T2, where T₁ is 15% of T2. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 10-in dia. 12 in T₂ 8.0⁰ T₁ 18.0" 10.0" I B pulley diameter = 8.0" Sut 113 kpsi T2 T1 pulley diameter = 10.0" Sy 86 kpsi 12.0" Bearing at C Using the DE-Goodman criteria and a design factor of 1.5, calculate the diameter based on the shaft's loadings…
Section 12-2 External and Internal Torques 12-1 to 12-6 For the shaft subjected to the external torque in each of Figs. P12-1 to P12-6, find the internal torque in each segment and plot the internal torque diagram of the shaft. 2 kN m A FIGURE P12-1 5 kN • m B 3 kNm
with diameter d = 38 mm transmits 37 kW to a gear Calculate the required speed of rotation (number of at B. The allowable shear stress in the steel is 40 MPa. X7-3 A motor driving a solid circular steel shaft revolutions per minute) so that the shear stress in the shaft does not exceed the allowable limit. Motor d = 38 mm B
A drive shaft running at 2500 rpm has outer diameter of 60mm and innerdiameter of 40mm. The allowable shear stress in the shaft is 35MPa. Determine themaximum power that can be applied. Present drawings/FBD’s illustrating your solution.
A winch raises a 60# bucket of paint, as shown. The main shaft of the winch is simply supported by bearings at A and C. The winch uses a 6"diameter pulley (B) and torque is applied at the end of the shaft to pull the cart. Determine the minimum shaft diameter based on the Distortion Energy (Von Mises) criterion using on a yield strength of 50ksi and a design factor of 2.0. 12" winch 18" C A Paint Rope
7-3 The section of shaft shown in the figure is to be designed to approximate relative sizes of d = 0.75D and r = D/20 with diameter d conforming to that of standard rolling- bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a completely reversed bending moment of 600 lbf • in, accompaniced by a steady torsion of 400 lbf · in. Use a design factor of 2.5 and size the shaft for an infinite life using the DE-Goodman criterion. Problem 7-3 Section of a shaft containing a grinding-relief groove. Unless otherwise specified, the diameter at the root of the groove d, =d - 2r, and though the section of diameter d is ground, the root of the groove is still a machined surface.
Problem 2: F = 10 kip -10 in- -5 in- -5 in- d/5 R. R1 d/ 10 R. 1.4 d- R2 I in The shaft shown above rotates at 1200 RPM and supports a 10 kip load. The material of the shaft is 1095 hot-rolled steel and its surface is machined and then polished. Using a factor of safety of 1.6, specify the minimum value of diameter d for a life of 1,000 hours.