SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
10th Edition
ISBN: 9781260163155
Author: BUDYNAS
Publisher: MCG CUSTOM
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Chapter 17, Problem 30P
To determine
The number of rope required.
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..A crane is to raise a load of 25,000 N at an acceleration of 1 m/s2 through a 6 x 19 wire rope whose weight is 15,000 N. The diameter of the rope is 32 mm and the rope drum diameter is 960 mm. Take the Young’s modulus for the wire rope as 80 kN/mm2. Assume dw = 0.063 d.
Which of the following is the bending load of the wire rope?
Group of answer choices
61 kN
40 kN
4 kN
80 kN
A small 2-lb ball B is rotating (Fig.13) at angular speed w1 of (6+(0.1*26)) rad/sec about a horizontal shaft. The ball is connected to the bearings with light elastic cords which when unstretched are each 12 in. in length. A force of 15 lb is required to stretch the cord. The distance d1 between the bearings is originally 20 in. If the bearing A is moved to shorten d by 6 in, what is the angular velocity w2 of the ball? Neglect the effects of gravity and the mass of the elastic cords. Use the moment of momentum equation.
.A crane is to raise a load of 11,000 N at an acceleration of 1.3 m/s2 through a 6 x 19 wire rope whose weight is 23,000 N. The diameter of the rope is 27 mm and the rope drum diameter is 906 mm. Take the Young’s modulus for the wire rope as 83 kN/mm2. Assume dw = 0.063 d. Determine the effective load during acceleration of load in kN.
Chapter 17 Solutions
SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
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...
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