The doorstop depicted in Fig. 16-2a has the following dimensions: a =6 in. b =4 in, c = 1.6 in, wi = 1 in, w2 = 0.75 in, where wz is the depth of the pad into the plane of the paper. (a) For a leftward relative movement of the floor, an actuating force F of 10 lbf, a coef- ficient of friction of 0.4, use a uniform pressure distribution Pay, find Rx, Ry, Pav. and the largest pressure Pa. (b) Repeat part a for rightward relative movement of the floor.

The doorstop depicted in Fig. 16-2a has the following dimensions: a =6 in. b =4 in, c = 1.6 in, wi = 1 in, w2 = 0.75 in, where wz is the depth of the pad into the plane of the paper. (a) For a leftward relative movement of the floor, an actuating force F of 10 lbf, a coef- ficient of friction of 0.4, use a uniform pressure distribution Pay, find Rx, Ry, Pav. and the largest pressure Pa. (b) Repeat part a for rightward relative movement of the floor.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

AR,
R,
Plan view of pad
T
a
Friction pad
B
Relative motion
P(u)
Center of
pressure
(a)

The doorstop depicted in Fig. 16-2a has the following dimensions: a =6 in. b =4 in,
c = 1.6 in, w1 = 1 in, w2 = 0.75 in, where w2 is the depth of the pad into the plane of
the paper.
(a) For a leftward relative movement of the floor, an actuating force F of 10 lbf, a coef-
ficient of friction of 0.4, use a uniform pressure distribution pav, find Ry, Ry, pav, and
the largest pressure Pa.
(b) Repeat part a for rightward relative movement of the floor.

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