Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8, Problem 8P
The C clamp shown in the figure for Prob. 8-7 uses a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A single threaded trapezoidal metric thread has a pitch of 4 mmand a mean diameter of 18 mm. It is used as a translation screwin conjunction with a collar having an outside diameter of 37mmand an inside diameter of 27 mm. The load is 400 kg and coefficientof friction is 0.3 for both threads and collar. Find:a. The collar torqueb. The required torque for threadc. The total torque
A power screw having single start square threads of 25 mm
nominal diameter and 5 mm pitch is acted upon by an axial load of
10 kN. The outer and inner diameters of screw collar are 50 mm and
20 mm respectively. The coefficient of thread friction and collar
friction may be assumed as 0.2 and 0.15 respectively. The allowable
thread bearing pressure is 5.8 N/mm², find:
1. The torque required to rotate the screw during raising and
lowering the load.
2. The maximum shear stress in the screw.
3. The number of threads of nut in engagement with the screw.
Problem: A double-threaded power screw with ISO
metric trapezoidal threads is used to raise a load
of 300 kN, The nominal diamter is 100 mm & the
pitch is 12mm. The coefficient of friction at screw
threads is 0.15. Neglect the collor friction.
Q.45 Torque required to raise the load is
Chapter 8 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 8 - A power screw is 25 mm in diameter and has a...Ch. 8 - Using the information in the footnote of Table...Ch. 8 - Show that for zero collar friction the efficiency...Ch. 8 - A single-threaded power screw is 25 mm in diameter...Ch. 8 - The machine shown in the figure can be used for a...Ch. 8 - The press shown for Prob. 8-5 has a rated load of...Ch. 8 - For the screw clamp shown, a force is applied at...Ch. 8 - The C clamp shown in the figure for Prob. 8-7 uses...Ch. 8 - Find the power required to drive a 1.5-in power...Ch. 8 - A single square-thread power screw has an input...
Ch. 8 - Prob. 11PCh. 8 - An M14 2 hex-head bolt with a nut is used to...Ch. 8 - Prob. 13PCh. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - Repeat Prob. 8-14 with the addition of one 12 N...Ch. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - Two identical aluminum plates are each 2 in thick,...Ch. 8 - Prob. 18PCh. 8 - A 30-mm thick AISI 1020 steel plate is sandwiched...Ch. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - A 2-in steel plate and a 1-in cast-iron plate are...Ch. 8 - An aluminum bracket with a 12-in thick flange is...Ch. 8 - An M14 2 hex-head bolt with a nut is used to...Ch. 8 - A 34 in-16 UNF series SAE grade 5 bolt has a 34-in...Ch. 8 - From your experience with Prob. 8-26, generalize...Ch. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - For a bolted assembly with eight bolts, the...Ch. 8 - Prob. 32PCh. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - 8-33 to 8-36 The figure illustrates the...Ch. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - 837 to 840 Repeat the requirements for the problem...Ch. 8 - Prob. 40PCh. 8 - 841 to 844 For the pressure vessel defined in the...Ch. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Bolts distributed about a bolt circle are often...Ch. 8 - The figure shows a cast-iron bearing block that is...Ch. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - Prob. 52PCh. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - 851 to 854 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - 855 to 858 For the pressure cylinder defined in...Ch. 8 - For the pressure cylinder defined in the problem...Ch. 8 - A 1-in-diameter hot-rolled AISI 1144 steel rod is...Ch. 8 - The section of the sealed joint shown in the...Ch. 8 - Prob. 61PCh. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - Using the Goodman fatigue criterion, repeat Prob....Ch. 8 - The figure shows a bolted lap joint that uses SAE...Ch. 8 - Prob. 67PCh. 8 - A bolted lap joint using ISO class 5.8 bolts and...Ch. 8 - Prob. 69PCh. 8 - The figure shows a connection that employs three...Ch. 8 - A beam is made up by bolting together two cold...Ch. 8 - Prob. 72PCh. 8 - Prob. 73PCh. 8 - Prob. 74PCh. 8 - A vertical channel 152 76 (see Table A7) has a...Ch. 8 - The cantilever bracket is bolted to a column with...Ch. 8 - Prob. 77PCh. 8 - The figure shows a welded fitting which has been...Ch. 8 - Prob. 79PCh. 8 - Prob. 80PCh. 8 - Prob. 81P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 6. Design a clamp coupling for transmitting 36 kW, at 200 rpm. Allowable shear stress in shaft is 45 MPa, allowable shear stress in key is 40 MPa, and allowable crushing stress in key is 90 MPa. The number of bolts joining the two halves is 4. The permissible tensile stress in bolts is 60 MPa. The coefficient of friction between the muff and shaft can be taken as 0.25arrow_forwardBearings Motor Spur gears Worm Bronze bushings - 2L 's C.I. Collar ´bearing 2 [ 's The press shown in the following figure has a rated load of 5000 Ibf. The twin screws have Acme threads, a diameter of 3 in, and a pitch of 1/2 in. Coefficients of friction are 0.05 for the threads and 0.06 for the collar bearings. Collar diameters are 5 in. The gears have an efficiency of 95 percent and a speed ratio of 75:1. A slip clutch, on the motor shaft, prevents overloading. The full-load motor speed is 1720 rev/min. (a) When the motor is turned on, how fast will the press head move? (b) What should be the horsepower rating of the motor?arrow_forwardQuestion 3 A single square thread power screw is to raise a load of 50 KN. A screw thread of major diameter of 34 mm and a pitch of 6 mm is used. The coefficient of friction at the thread and collar are 0.15 and 0.1 respectively. If the collar frictional diameter is 100 mm and the screw turns at a speed of 1 rev/s. (Given dm = 31mm, 1 = 6mm, dc = 100mm). Find: (a) the power input to the screw. (b) the combined efficiency of the screw and collar.arrow_forward
- 8. Design a clamp coupling for transmitting 25 kW at 300 rpm. Allowable shear stresses in shaft and key are 50 MPa and 45 MPa, respectively. The number of bolts joining the two halves of muff is 4. The permissible tensile stress in the bolt is 70 MPa and the permissible crushing stress in the key is 90 MPa. The coeffi cient of friction between the muff of the CI and the shaft of steel is 0.20.arrow_forwardIn the figure below the clamping force on the pipe is (331.7 lb), knowing that a single threaded screw Acme with major diameter (1 in) is used with coefficient of sliding friction (0.2135) and booth screw and nut are made from 1030- hot rolled Carbon Steel. If the collar has a rolling friction of 0.02 and the mean collar diameter is 1.75 in. Determine: 1- The tightening and loosening torques. Is it self-locking? 2- Thread screw and nut induced stresses. PEM.. w* 7.3 +4² +Fx (7.3 +²2₂ +6+43)] _Fy (3) Fx W=? 3.3 in L₁ 3 in = 3.3 (sin(4 32 hinge 552 (32)arrow_forward3 The press shown below has a rated load of 25 kN The twin screws have Acme threads, a diameter of 56 mm, and a pitch of 5.5 mm. Coefficients of friction are 0.05 for the threads and 0.08 for the collar bearings. Collar diameters are 88 mm. The gears have an efficiency of 95 percent and a speed ratio of 60: 1. The full-load motor speed is 1750 rev/min. a. When the motor is turned on, how fast will the press head move? b. What should be the horsepower rating of the motor? Bearings Motor Spur gears Bronze bushings (مزدوج) Foot Worm Collar bearingarrow_forward
- The roughly position of the automobile jack shown in the figure is a square screw with a single blade at both ends. ABC is controlled by a bolt (right-hand threaded in A, left-handed in C). square of the bolt screw has a pitch of 2.5 mm and an average diameter of 9 mm. between the bolt and the jack limbs The coefficient of static friction is 0.15, taking into account the position and load shown, you can use the jack Find the magnitude of the torque that must be applied to raise it.arrow_forwardFind the power required to drive a 1.5-in power screw having double square threads with a pitch of 1/4 in. The nut is to move at a velocity of 2 in/s and move a load of F = 2.2 kips. The frictional coefficients are 0.10 for the threads and 0.15 for the collar. The frictional diameter of the collar is 2.25 in.arrow_forwardInformation about the clamp assembly in the figure is given below. Thread diameter 12 mm, root diameter 10.16 mm, pitch 1.5 mm, screw profile angle 2α=60, friction surface of table A diameter 10 mm, friction between plate A-screw end surface coefficient 0.15 and screw-nut friction coefficient 0.15 is given. If a hand force of 200N is applied to the vise arm, if applied, a) How much force is applied to the clamped part. b) Calculate the efficiency of the vise.arrow_forward
- (9) A single thread trapezoidal metric thread has a pitch of 4mm &has a mean diameter of 18mm. It is used as a translation screw in conjunction with the collar having an outside diameter of 37mm & inside diameter of 27mm. Find the required torque in N-m to raise a load of 400kg, if the coefficient of friction is 0.3 for both threads & the collar.arrow_forwardA cylinder with a nominal 2.5 in ID, a 4.0 in OD, and a 3.0 in length is to be mated with a solid shaft with a nominal 2.5 in diameter. A medium drive fit is desired (as defined in Table 7-9). The cylinder and shaft are made from steel, with Sy = 100 kpsi and E = 30 Mpsi. The coefficient of friction for the steel interface is 0.7. a. Specify the maximum and minimum allowable diameters for both the cylinder hole and the shaft. b. Determine the torque that can be transmitted through this joint, assuming the shaft and cylinder are both manufactured within their tolerances such that the minimum interference is achieved. c. Suppose the shaft and cylinder are both manufactured within their tolerances such that the maximum interference is achieved. Check for yielding of the cylinder at its inner radius by finding the following: i. The pressure at the interface ii. The tangential and radial stresses in the cylinder, at its inner radius. iii. The factor of safety for static yielding of the…arrow_forwardA trapezoidal-threaded power screw with a crest diam- eter of 30 mm and single thread is used to raise a load of 50 kN. The collar mean diameter is 40 mm. The coeffi- cient of friction is 0.12 for both the thread and the collar. Determine the following: (a) Pitch diameter of the screw. Ans. dp = = 27.0 mm.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
How to Measure Threads; Author: PracticalMachinist;https://www.youtube.com/watch?v=Uuy7EViS7Kc;License: Standard Youtube License