Engineering Mechanics: Statics and Study Pack (13th Edition)
13th Edition
ISBN: 9780133027990
Author: Russell C. Hibbeler
Publisher: Prentice Hall
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Chapter 6.3, Problem 3P
Determine the force in each member of the truss, and state if the members are in tension or compression Set θ = 0°.
Probs. 6-5
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Students have asked these similar questions
The gears shown in the figure have a diametral pitch of 2 teeth per inch and a 20° pressure angle.
The pinion rotates at 1800 rev/min clockwise and transmits 200 hp through the idler pair to gear
5 on shaft c. What forces do gears 3 and 4 transmit to the idler shaft?
TS
I
y
18T
32T
This
a
12
x
18T
C
48T
5
Question 1. Draw 3 teeth for the following pinion and gear respectively. The teeth
should be drawn near the pressure line so that the teeth from the pinion should
mesh those of the gear. Drawing scale (1:1). Either a precise hand drawing or
CAD drawing is acceptable. Draw all the trajectories of the involute lines and the
circles.
Specification: 18tooth pinion and 30tooth gear. Diameter pitch=P=6 teeth /inch.
Pressure angle:20°, 1/P for addendum (a) and 1.25/P for dedendum (b). For fillet,
c=b-a.
5. The figure shows a gear train. There is no friction at the bearings except for the gear tooth forces.
The material of the milled gears is steel having a Brinell hardness of 170. The input shaft speed (n2)
is 800 rpm. The face width and the contact angle for all gears are 1 in and 20° respectively. In this
gear set, the endurance limit (Se) is 15 kpsi and nd (design factor) is 2.
(a) Find the revolution speed of gear 5.
(b) Determine whether each gear satisfies the design factor of 2.0 for bending fatigue.
(c) Determine whether each gear satisfies the design factor of 2.0 for surface fatigue (contact stress).
(d) According to the computation results of the questions (b) and (c), explain the possible failure
mechanisms for each gear.
N4=28
800rpm
N₁=43
N5=34
N₂=14
P(diameteral pitch)=8 for all gears
Coupled to 2.5hp motor
Chapter 6 Solutions
Engineering Mechanics: Statics and Study Pack (13th Edition)
Ch. 6.3 - State if the members are in tension or...Ch. 6.3 - State if the members are in tension or...Ch. 6.3 - Prob. 3FPCh. 6.3 - Determine the greatest load P that can be applied...Ch. 6.3 - Identify the zero-force members in the truss....Ch. 6.3 - State if the members are in tension or...Ch. 6.3 - Prob. 1PCh. 6.3 - Prob. 2PCh. 6.3 - Determine the force in each member of the truss,...Ch. 6.3 - Determine the force in each member of the truss,...
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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