... -6 .99 -63.43
4/7
-
12.30 -75 .96
1
o/r
-20.04 -84. 29
Once scales for the graphs have been chosen,
all
of
the graphs
of
log
I
E3
(jw)
I
will have the same
shape, independent
of ... product
of
co-
7
Hz
sinusoidal force
of
amplitude equal to
1%
of
the
ordinates.)
weight of machine
A
is applied to the machine at
A
what is the amplitude
of
motion
o...
...
acceleration)
=
moment
of
the rate
of
change of
=
rate
of
change
of
the moment
of
or
momentum
momentum
We may n~~ke use
of
the definition
of
the
centre
of
mass and, by writing ...
13(ci+dj)
and
w3
=
9. 980
Using
%
=
w1
X
Zl
and equation (iv) leads to
l%l
=
d[(1.5 59) 2+(0 .9) 2]
=
1.800ds
%
=
-1.5 593 +0.9jm/s
and
and determine the valu...
... side
of
a
hill which slopes at 30" away from the centre
of
curvature
of
the path as shown. The radius
of
curvature
to the centre
of
mass can be taken as 30m. The
coefficient
of ...
Moment
of
inertia
of
a right circular uniform
i) Moment
of
inertia about the
axis
of
the cylinder.
In Fig. 6.8, the mass of an elemental rod is
pLdr(rdO), where p is the...
... and that of the spider is
0. 09
kg
m2.
Each planet has a mass of
2.0
kg and an axial
moment of inertia
of
0.0025
kg
m2.
The centres of the
Planet wheels are at a radius
of
120mm ... consequence
of
equations
8.8
to
8.10
is the relationship which exists between the
velocity of approach and the velocity
of
recession
of the points
of
contact.
Velocity...
...
(9. 37)
1T
a0=-[
f(t)dt
To
r
a,
=
2
[
f(t)cosnq,tdt
To
(9. 38)
b,
=
-
f(t)sinnwotdt (9. 39)
'T
1:
where
wo
=
2dT (9. 40)
9
Vi
bration
SECTION
A
or
mi+kx=mg
(9. 1) ... study of one-degree -of-
y
=
wn(-Asinwnt+Bcoswnt) (9. 5)
freedom systems is a necessary prerequisite. and
y
=
-wn2(Acoswnt+Bsinwnf) (9. 6)
9. 2
Free vibration of undamped syst...
... the
total mass times the acceleration of the centre
of
mass, and is independent
of
any rotation.
Moment
of
momentum
The moment
of
momentum
of
a particle about a
point
0
is defined ... a
flywheel
of
moment
of
inertia
I,
and the damping
torque at the load is equal to
C
times the angular
velocity
of
the load. The moment
of
inertia
of
the rotor
of
t...
...
of
the tube shall be the same as that
of
the
rod. So with reference to Fig. 12.22 we see that
the compression
of
the tube is equal to the initial
lack
of
fit plus the compression
of ...
of
area and denoted by
I.
Similar
to moment
of
inertia, the second moment
of
area
is often written as
I=Ak2
where
A
is the
cross-section area and
k
is known as the radius...
...
410,
Q,
=
9. 2".
z
=
rsinQ,
=
5005sin9.2"
=
800.2 m
R
=
rcos4
=
5005~0 ~9. 2"
=
494 1.0 m
x
=
Rcose
=
494 1~0~41"
=
37 29. 0 m
y
=
Rsin8
=
494 1sin41" ... study of the motion of material
bodies and of the associated forces.
The study of motion is called kinematics and
involves the use of geometry and the concept of
time...
... Part
3
Engineering
Mechanics syllabuses
of
degree courses in
engineering. The emphasis of the book is on the
principles
of
mechanics and examples are drawn
from a wide range
of
engineering ...
199 4 H.
R.
Harrison and
T.
Nettleton
First published in Great Britain
197 8
Second edition 199 4
British Library Cataloguing
in
Publication Data
Harrison, Harry Rona...