A Treatise on Infinitesimal Calculus: Containing Differential and Integral Calculus, Calculus of Variations, Applications to Algebra and Geometry, and Analytical Mechanics, Volume 4

Front Cover
The University Press, 1862 - Calculus
 

Contents

56
88
Conservation of motion of centre of gravity of moments
92
The invariable plane
98
Conservation of vis viva critical value of vis viva when
105
Carnots theorem
114
CHAPTER IV
124
Transformation of equations instantaneous forces
127
Moment of inertia and radius of gyration
128
The equations deduced from first principles
130
The axial components of the resulting angular velocity
131
Transformation of equations finite forces
132
The resulting angular velocityincrement
133
Axial components of velocityincrement
134
Analysis of the equations
135
Centrifugal forces
137
Resulting equations of motion
138
Simplification of the equations principal axes
139
Principal axes and their properties 86 Proof of the existence of a system of principal axes and the position of it at a given point
141
Interpretation of the results by means of an ellipsoid
143
Particular forms of the ellipsoid of principal axes
145
Principal axes determined in a particular problem
146
One principal axis being given the determination of the two others
147
Examples in illustration
148
Reduced forms of equations of motion
150
Permanent axes
153
Foucaults gyroscope
154
General value of moment of inertia
156
Example in illustration
157
Singular values of principal moments
160
The equimomental cone
161
Moments of inertia relative to parallel axes
162
Moments of inertia in relation to the central ellipsoid
163
The position of principal axes at any point
166
The central ellipsoid of gyration
167
The symmetry of a body
169
The cone reciprocal to that of principal axes is equimomental
171
Professor Maccullaghs construction by Apsidals
173
Particular forms of the equimomental surface
174
Distribution in space of principal axes
178
Examples of moments of inertia
185
Moments of inertia of shells derived from those of solid
197
THE ROTATION OF A BODY ABOUT A FIXED POINT SECTION 1 Rotation of a body about a fixed point under the action of instantaneous forces
199
Determination of the pressure on the axis
204
The axis of percussion
212
Examples of the simple isochronous pendulum
220
Experimental determination of the radius of gyration
226
Motion of machines with fixed axes
233
the axis
239
Two systems of reference
245
The equations of motion in their general and reduced forms
246
The instantaneous rotationaxis the instantaneous pole and the couple of impulsion
247
Examples in illustration
250
The pressure at the fixed point
252
Rotation of a rigid body about a fixed point under the action of finite forces 148 The general equations of motion Eulers equations
253
The equations and their results when no forces act
255
Explanations of these results the invariable axis
256
Position determined by the three angles 0 4 4
258
The component of the instantaneous angular velocity along the invariable axis is constant
260
Poinsots interpretation of the preceding result
261
General and particular properties of the polhode
264
Do of the herpolhode
266
The stability of the rotationaxis
269
Particular cases of the preceding theorems depending on particular initial circumstances
271
9
273
Discussion of the case when the oscillation of the rotation axis is small
277
The cone described by the rotationaxis in the body
278
Certain properties of the principal axes of the moving body
279
Rotation of a heavy body about a fixed point
281
Particular case when AB and the initial axis of rotation is the principal axis of unequal moment
288
Do when the axis of unequal moment is inclined to the vertical at a constant angle
291
Bohnenbergers and Fessels machines
295
Precession and nutation of the earth
297
CHAPTER VII
320
Analytical proof that all motion consists of a translation
321
The equations of motion
322
The components of velocity resulting from a given force
323
The locus of points which move with the same velocity
324
11
325
The spontaneous axis
326
The motion of a body due to a blow parallel to a central principal axis and in a central principal plane
329
Remarks on the practical application of the theorem
330
On the principal axes of a cone enveloping an ellipsoid
331
The centres of greatest percussion
334
The body struck may be equivalently replaced by two mole cules of given masses at the ends of an inflexible bar
335
The position of the point on which the moving body
338
The centres of greatest reflexion and greatest conversion
339
Motion of a body due to a blow parallel to a central princi pal axis
342
Theorems relating to the spontaneous axis and spontaneous centre corresponding to a given centre of impulsion
344
Other incidents of the motion
346
Centres of greatest percussion
349
Case in which a couple of impulsion initially acts
350
Case when the body strikes against a moveable mass
352
Points of greatest reflexion and greatest conversion
355
Points of perfect reflexion and perfect conversion
356
The initial motion of a billiard ball
363
The general case of rocking or titubation
379
Angular velocities expressed in terms of Eulers three angles
384
Examples of small oscillations
385
Small oscillations of a body of which one point is fixed
391
CHAPTER III
395
The motion of a top on a smooth horizontal plane
402
CHAPTER II
413
The equations derived from fictitious forces
420
Motion of a heavy particle in a rotating tube
429
THE DYNAMICS PROPER OF A MATERIAL SYSTEM
431
Adaptation of the equations with the omission of small
436
the equations of motion of a
441
The investigation carried to a higher approximation
442
The equations of motion of a material system the internal
447
Relative motion of a particle on a smooth inclined plane
453
All combined into one equation by means of the principle
459
Relations between absolute and relative angular velocities
465
Particular cases of the preceding
474
CHAPTER IX
481
Definition of a machine its working point its work and la bouring force
483
Relation between work and vis viva
485
Moving work and resisting work useful work and lost work
487
Maximum and minimum values of vis viva
489
Uniformity of motion secured by flywheels
491
On mechanical units
493
CHAPTER X
496
A rigid body in contrast with an elastic body
498
Two modes of forming the equations of motion of an elastic body
499
The equations of motion of a fine flexible string
500
The general motion of an elastic string
501
The integrals of the equations of motion expressed in terms of arbitrary functions
504
The properties of a vibrating string deduced from the pre ceding functions
506
The oscillations and periodic times of the string
508
The nodes and ventral segments
509
The relation between the periodic times of the transverse and longitudinal vibrations
510
The preceding results in reference to the theory of music
511
Another mode of expressing the integrals
513
The longitudinal vibrations of the molecules of a fine elastic rod
514
The motion of the molecules of a thin elastic lamina
517
The general equations of motion of a molecule of an elastic body
519
Particular case when the body is a thin elastic membrane
520
Particular case when the body is a fine elastic string
522
THEORETICAL DYNAMICS
524
Application to the motion of a flexible string
536
Transformation of the general Lagrangian form to
542
Peculiar properties of initial values of p q considered
548
The results of the gyroscope 480
566
Variation of elements Demonstration by means of Hamil
573

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Page 298 - Newton discovered, as a fundamental law of nature, that every particle attracts every other particle with a force which varies directly as the product of the masses and inversely as the square of the distance between them.
Page 13 - To prove that the locus of the middle points of a system of parallel chords of a parabola is a straight line parallel to the axis of the parabola.
Page 542 - This proves the first part of the theorem. To prove the second part : Take any two lines of the system, 34 and 56.
Page 89 - ... bottom of which are formed by planes perpendicular to its axis, contains elastic fluid, the weight of which may be neglected. If the vessel revolve uniformly about its axis, find the pressure at any point of the fluid mass. 6. The motion of rotation of a rigid system acted on by any forces, about its centre of gravity, is the same as if the centre of gravity were fixed, and the same forces acted. A heavy beam moves about a horizontal axis passing through one extremity ; apply the preceding principle...
Page 93 - Conservation of vis viva, the Principle of the Conservation of the Motion of the Centre of Gravity, and the like.
Page 188 - Ip = /« — /„, or the polar moment of inertia is equal to the sum of the moments of inertia about any two axes at right angles to each other in the plane of the area and intersecting at the pole.
Page 38 - ... and the greater the gain of the dial upon the hand. The wheels of both dial and hand are constantly revolving in the direction opposite to that of the' motion of the hands of a watch. The belt of the hand-wheel runs always upon the rod, where its diameter is constant, and as the rod moves laterally under the little belts, guides are necessary to keep the belts themselves from moving laterally also. The proportions of the cones on the rod, and of the two wheels which carry the dial...
Page 91 - Thus it is proved that, in the case of a body acted on by any forces, the motion of the centre of gravity is the same as if...
Page 300 - When we say that a force varies directly as the mass of the attracting body, and inversely as the square of...
Page 120 - Si corporum systemata duo similia ex aequali particularum numero constent, et particuli correspondentes similes suit et proportionales, singulae in *uno systemate singulis in altero, et similiter sitae inter se, ac...

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