Engineering Mechanics: Statics and Study Pack (13th Edition)
Engineering Mechanics: Statics and Study Pack (13th Edition)
13th Edition
ISBN: 9780133027990
Author: Russell C. Hibbeler
Publisher: Prentice Hall
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Chapter 6.4, Problem 12FP

State if the members are in tension or compression. Suggestion: Use the sections shown.

Chapter 6.4, Problem 12FP, State if the members are in tension or compression. Suggestion: Use the sections shown. Prob. F6-12

Prob. F6-12

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Q1: Determine the length, angle of contact, and width of a 9.75 mm thick leather belt required to transmit 15 kW from a motor running at 900 r.p.m. The diameter of the driving pulley of the motor is 300 mm. The driven pulley runs at 300 r.p.m. and the distance between the centers of two pulleys is 3 meters. The density of the leather is 1000 kg/m³. The maximum allowable stress in the leather is 2.5 MPa. The coefficient of friction between the leather and pulley is 0.3. Assume open belt drive.
5. A 15 kW and 1200 r.p.m. motor drives a compressor at 300 r.p.m. through a pair of spur gears having 20° stub teeth. The centre to centre distance between the shafts is 400 mm. The motor pinion is made of forged steel having an allowable static stress as 210 MPa, while the gear is made of cast steel having allowable static stress as 140 MPa. Assuming that the drive operates 8 to 10 hours per day under light shock conditions, find from the standpoint of strength, 1. Module; 2. Face width and 3. Number of teeth and pitch circle diameter of each gear. Check the gears thus designed from the consideration of wear. The surface endurance limit may be taken as 700 MPa. [Ans. m = 6 mm; b= 60 mm; Tp=24; T=96; Dp = 144mm; DG = 576 mm]
4. G A micarta pinion rotating at 1200 r.p.m. is to transmit 1 kW to a cast iron gear at a speed of 192 r.p.m. Assuming a starting overload of 20% and using 20° full depth involute teeth, determine the module, number of teeth on the pinion and gear and face width. Take allowable static strength for micarta as 40 MPa and for cast iron as 53 MPa. Check the pair in wear.

Chapter 6 Solutions

Engineering Mechanics: Statics and Study Pack (13th Edition)

Ch. 6.3 - Prob. 5PCh. 6.3 - Determine the force in each member of the truss...Ch. 6.3 - Determine the force in each member of the Pratt...Ch. 6.3 - Prob. 8PCh. 6.3 - Prob. 9PCh. 6.3 - Prob. 10PCh. 6.3 - Determine the force in each member of the truss...Ch. 6.3 - Prob. 12PCh. 6.3 - Prob. 13PCh. 6.3 - Prob. 14PCh. 6.3 - Prob. 15PCh. 6.3 - State whether the members are in tension or...Ch. 6.3 - If the maximum force that any member can support...Ch. 6.3 - Prob. 18PCh. 6.3 - Prob. 19PCh. 6.3 - Prob. 20PCh. 6.3 - Prob. 21PCh. 6.3 - Determine the force in each member of the double...Ch. 6.3 - Prob. 23PCh. 6.3 - Prob. 24PCh. 6.3 - Prob. 25PCh. 6.3 - Prob. 26PCh. 6.4 - Determine the force in members BC, CF, and FE....Ch. 6.4 - State if the members are in tension or...Ch. 6.4 - State if the members are in tension or...Ch. 6.4 - State if the members are in tension or...Ch. 6.4 - State if the members are in tension or...Ch. 6.4 - State if the members are in tension or...Ch. 6.4 - Determine the force in members HG, HE and DE of...Ch. 6.4 - Prob. 28PCh. 6.4 - Prob. 29PCh. 6.4 - Prob. 30PCh. 6.4 - State if these members are in tension or...Ch. 6.4 - State if these members are in tension or...Ch. 6.4 - Prob. 33PCh. 6.4 - Prob. 34PCh. 6.4 - State if these members are in tension or...Ch. 6.4 - Determine the force in members CD, CF, and CG and...Ch. 6.4 - Determine the force in members GF, FB, and BC of...Ch. 6.4 - Prob. 38PCh. 6.4 - Prob. 39PCh. 6.4 - Prob. 40PCh. 6.4 - Prob. 41PCh. 6.4 - Prob. 42PCh. 6.4 - Prob. 43PCh. 6.4 - Prob. 44PCh. 6.4 - Prob. 45PCh. 6.4 - Prob. 46PCh. 6.4 - Prob. 47PCh. 6.4 - Prob. 48PCh. 6.4 - Prob. 49PCh. 6.6 - Determine the force P needed to hold the 60-lb...Ch. 6.6 - Determine the horizontal and vertical components...Ch. 6.6 - If a 100-N force is applied to the handles of the...Ch. 6.6 - Prob. 16FPCh. 6.6 - Determine the normal force that the 100-lb plate A...Ch. 6.6 - Also, determine the proper placement x of the hook...Ch. 6.6 - Determine the components of reaction at A and B....Ch. 6.6 - Determine the reactions at D. Prob. F6-20Ch. 6.6 - Determine the components of reaction at A and C....Ch. 6.6 - Determine the components of reaction at C. Prob....Ch. 6.6 - Determine the components of reaction at E. Prob....Ch. 6.6 - Determine the components of reaction at D and the...Ch. 6.6 - The block weighs 100 lb. Prob. 6-62Ch. 6.6 - Prob. 62PCh. 6.6 - Prob. 63PCh. 6.6 - Prob. 64PCh. 6.6 - Prob. 65PCh. 6.6 - Prob. 66PCh. 6.6 - Prob. 67PCh. 6.6 - Prob. 68PCh. 6.6 - Also, what are the horizontal and vertical...Ch. 6.6 - Prob. 70PCh. 6.6 - Prob. 71PCh. 6.6 - Prob. 72PCh. 6.6 - Prob. 73PCh. 6.6 - Determine the horizontal and vertical components...Ch. 6.6 - Determine the horizontal and vertical components...Ch. 6.6 - Prob. 76PCh. 6.6 - Prob. 77PCh. 6.6 - Prob. 78PCh. 6.6 - The toggle clamp is subjected to a force F at the...Ch. 6.6 - Determine the force P exerted on each of the...Ch. 6.6 - Prob. 81PCh. 6.6 - Determine the force in the guy cable AI and the...Ch. 6.6 - Prob. 83PCh. 6.6 - Prob. 84PCh. 6.6 - Prob. 85PCh. 6.6 - If the wheel at A exerts a normal force of FA = 80...Ch. 6.6 - Prob. 87PCh. 6.6 - Prob. 88PCh. 6.6 - Prob. 89PCh. 6.6 - Determine the force that the jaws J of the metal...Ch. 6.6 - When the walking beam ABC is horizontal, the force...Ch. 6.6 - Prob. 92PCh. 6.6 - Prob. 93PCh. 6.6 - Determine the total force he must exert on bar AB...Ch. 6.6 - Determine the total force he must exert on bar AB...Ch. 6.6 - Prob. 96PCh. 6.6 - Prob. 97PCh. 6.6 - Determine the horizontal and vertical components...Ch. 6.6 - If a clamping force of 300 N is required at A,...Ch. 6.6 - If a force of F = 350 N is applied to the handle...Ch. 6.6 - Prob. 101PCh. 6.6 - Prob. 102PCh. 6.6 - Prob. 103PCh. 6.6 - Prob. 104PCh. 6.6 - Prob. 105PCh. 6.6 - If d = 0.75 ft and the spring has an unstretched...Ch. 6.6 - If a force of F = 50 lb is applied to the pads at...Ch. 6.6 - Determine the force in the hydraulic cylinder AB...Ch. 6.6 - Prob. 109PCh. 6.6 - Prob. 110PCh. 6.6 - Prob. 111PCh. 6.6 - If the sprig has a stiffness of k = 15 lb/in., and...Ch. 6.6 - Prob. 113PCh. 6.6 - Prob. 114PCh. 6.6 - If only vertical forces are supported at the...Ch. 6.6 - Determine the resultant forces at pins B and C on...Ch. 6.6 - Determine the force in each member of the truss...Ch. 6.6 - Determine the horizontal and vertical components...Ch. 6.6 - Prob. 123RPCh. 6.6 - Prob. 124RPCh. 6.6 - Prob. 125RPCh. 6.6 - Determine the force in each member of the truss...

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Engineering Basics - Statics & Forces in Equilibrium; Author: Solid Solutions - Professional Design Solutions;https://www.youtube.com/watch?v=dQBvQ2hJZFg;License: Standard YouTube License, CC-BY