SHIGLEY'S MECH.ENGINEERING DESIGN-EBK>I
10th Edition
ISBN: 9781259489563
Author: BUDYNAS
Publisher: INTER MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 17, Problem 8P
To determine
The expression for the load that belt places on the pulley
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q1) The mean diameter of the driving pulley for a vee-belt drive with two belts is 110 mm. The pulley groove angle is 40° and the drive transmits 4.4 kW at a speed of rotation of 1500 rev/min. The coefficient of friction between belt and pulley 0.32, and the angle of lap is 160°. Determine the driving torque and the maximum stress in the belt material if the cross-sectional area of each belt is 120 mm2.
1. A double square thread power screw has a pitch of 6 mm and mean radius of34 mm. If it is used to lift a load 50 kN and coefficient of friction of threads is 0.15, determine the torque required toturn the screw.A. 343.74 N-m B. 353.47 N-m C. 335.47 N-m D. 347.35 N-m2. A lubricated bolt needs an initial torque of 145 lb-ft to take the initial tension brought by the compressor withoutbreaking. Determine the initial torque needed by the bolt if the bolt was not lubricated.A. 107.85 lb-ft B.108.25 lb-ft C. 108.75 lb-ft D. 193.33 lb-ft
An open belt connects two flat pulleys. The pulley diameters are 300 mm and 450 mm and the corresponding angles of lap are 160° and 210°. The smaller pulley runs at 200 r.p.m. The coefficient of friction between the belt and pulley is 0.25. It is found that the belt is on the point of slipping when 3 kW is transmitted. To increase the power transmitted two alternatives are suggested, namely (i) increasing the initial tension by 10%, and (ii) increasing the coefficient of friction by 10% by the application of a suitable dressing to the belt. Which of these two methods would be more effective? Find the percentage increase in power possible in each case.
Chapter 17 Solutions
SHIGLEY'S MECH.ENGINEERING DESIGN-EBK>I
Ch. 17 - Example 17-2 resulted in selection of a 10-in-wide...Ch. 17 - A 6-in-widc polyamide F-l flat belt is used to...Ch. 17 - Prob. 3PCh. 17 - A flat-belt drive is to consist of two...Ch. 17 - In solving problems and examining examples, you...Ch. 17 - Return to Ex. 17-1 and complete the following. (a)...Ch. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Two shafts 20 ft apart, with axes in the same...
Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - A designer has to select a metal-belt drive to...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Two B85 V belts are used in a drive composed of a...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - The geometric implications of a V-flat drive are...Ch. 17 - A 2-hp electric motor running at 1720 rev/min is...Ch. 17 - The standard roller-chain number indicates the...Ch. 17 - Prob. 24PCh. 17 - A double-strand no. 60 roller chain is used to...Ch. 17 - A four-strand no. 40 roller chain transmits power...Ch. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - Prob. 29PCh. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - For Prob. 17-29 estimate the elongation of the...
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
- A flange coupling has 6 bolts with a bolt circle diameter of 200 mm is used to connect the steam turbine to a 5 MW generator running at 3,600 rpm with an efficiency of 95 %. Find the force on each bolt that will cause it to shear. A. 23.27 kN B. 32.72 kN C. 27.53 kN D. 35.94 kNarrow_forwardA semi-elliptic spring used for automobile suspension, consists of two extra full-length leaves and eight graduated-length leaves, including the master leaf. The centre-to centre distance between the two eyes is 1 m. The leaves are made of steel 55Si2Mo90 (Syt = 1500 N/mm2and E = 207000 N/mm2) and the factor of safety is 2. The maximum spring load is 30 kN. The leaves are pre- stressed so as to equalize stresses in all leaves under maximum load. Determine the dimensions of the cross-section of the leaves and the deflection at the end of the spring.arrow_forwardA belt is to transmit 50 kW power to a machine. The sheave is 10 inches in diameter and turns at 1200 rpm, while the larger sheave turns at 500 rpm. Determine the design HP if a service factor of 1.35 and a correction factor of 0.85.arrow_forward
- A 600 mm steel pulley transmits 50 kW at 900 rpm. The arc of contact between the belt and pulley is 144 degrees, the coefficient of friction between belt and pulley is 0.3 and the safe working stress of the belt is 2750 kPa. Find the width of the belt used if the thickness is equal to 12 mm.arrow_forwardA flange coupling having 100 mm bolt circle radius and 22 mm thick uses 8 bolts, 16 mm diameter to connect two shafts. It is use to transmit 60 KW at 190 rpm. Determine the factor of safety in bearing if yield point in compression is 448 Mpa.arrow_forwardA leather belt is required to transmit 7.5 Kw of power from a pulley 1.2m in diameter at 250 rpm. The lap angle (contact angle between small pulley and belt) is 165o and the coefficient of friction of friction between the belt and the pulley is 0.3. If the safe working stress for the leather belt is 1.5 MPa, density of leather 1 Mg/m3 and thickness of belt 10 mm, determine the tension in the both (tight and slack) side and width of the belt taking centrifugal tension into account.arrow_forward
- In double hook joint, the angle of the driving and of the driven shaft with the intermediate shaft is 30°. The max ratio of the driven shaft to driving shaft angular velocities is (a) 3/4 (b) 4/3 (c) 1/2 (d) 1/4arrow_forwardA polyamide A-3 flat belt 6 in wide is used to transmit 15 hp under light shock conditions where Ks= 1.25, and a factor of safety equal to or greater than 1.1 is appropriate. The pulley rotational axesare parallel and in the horizontal plane. The shafts are 8 ft apart. The 6-in driving pulley rotates at1750 rev/min in such a way that the loose side is on top. The driven pulley is 18 in in diameter. Thecoefficient of friction is 0.8. Analyze the centrifugal tension Fc and the torque T.?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_forward
- The preliminary design of a large shaft connecting a motor with agenerator requires the use of a hollow shaft with inside and outside diameters4 in. and 6 in., respectively. Taking a safety factor of 2.5 andknowing that the shear resistance is 14 ksi, determine the maximumtorque that can be transmitted by the shaft as designedarrow_forwardM16 (h=2mm, d1=13.54mm, d2=14.7mm) material quality 8.8 bolt-nut connection Blowout= 2500 daN prestressbored with. Factor of safety S=2.5, key length L=10.d, coefficient of friction µo='=0.17; Average of contact surface with nutdiameter is given as d0=1.4.d. According to the given;a) strength control calculation during tightening;b) hand force that must be applied to the wrenchc) When the pre-tensioning force is applied, the elongation of the part is given as lp= 0.015mm, and the elongation of the bolt as lc= 0.030mm. BusinessSince the total elongation of the bolt is lctop=0.040mm for Ftop=3000 daN after the force is applied, we can define the characteristic of the bolt.find it.d) the characteristic of the part and the minimum remaining shortening value önlp after the prestressing forcee) Calculate the portion of the operating force on the bolt (Fic) and the part (Fip).f) Calculate the pre-tension force Fön' value remaining in the connection after the operating force has been…arrow_forwardDetermine the axial spring force necessary to engage the clutch, when an engine developing 30kW at 500 r.p.m. is fitted with a cone clutch built inside the flywheel. The cone has a face angle of 13.5o and a maximum mean diameter of 300 mm. The coefficient of friction is 0.25. The normal pressure on the clutch face is not to exceed 0.1 N/mm2arrow_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
Power Transmission; Author: Terry Brown Mechanical Engineering;https://www.youtube.com/watch?v=YVm4LNVp1vA;License: Standard Youtube License