Rational and Applied MechanicsNixon-Jones, 1912 - 517 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
acceleration angle angular velocity assumed axes balance beam bending bending moment body cantilever center of gravity center of mass center of pressure centroid circle column component compression constant couple cross-section curve cycloid cylinder deflection diagram direction distance draw earth elastic elastic limit energy equal equation F₁ feet fiber forces acting formula friction Hence horizontal horizontal action inch inertia integration length lever line of action load M₁ magnitude mass maximum moment of inertia motion moving neutral axis normal p₁ pass thru perpendicular plane plate polygon position pressure problem pull r₁ radius resultant rolling rotation shaft shearing stress shown in Fig slope solid static triangle steel student Suppose surface T₁ tangent tension tion truss unbalanced force uniform V₁ vertical W₁ W₂ weight wheel zero
Δημοφιλή αποσπάσματα
Σελίδα 442 - ... which latter force is considerable in some kinds of earth, such as clay, especially when moist. It is by its tenacity that a bank of earth is enabled to stand with a vertical face, or even an overhanging face, for a few feet below its upper edge; whereas friction alone...
Σελίδα 438 - It had previously been ascertained by observation of the success and failure of actual chimneys, and especially of those which respectively stood and fell during the violent storms of 1856...
Σελίδα 209 - ... bodies is proportional to the product of their masses divided by the square of the distance between them.
Σελίδα 438 - Ibs. per sq. ft. of the plane projection of a cylindrical surface, . . . shall not cause the resultant pressure at any bed-Joint to deviate from the axis of the chimney by more than one quarter of the outside diameter at that joint," According to Bankine's rule, the Lawrence Mfg.
Σελίδα 57 - B on the ground, which is smooth, at a distance of 6 ft. from the wall ; it is maintained in this position by a horizontal cord attached at B. Find the tension of the cord if the centre of gravity of the ladder is 4 ft.
Σελίδα 38 - It follows from 313 and 107 that the moment of a force is equal to the algebraic sum of the moments of its components about any fixed axis.
Σελίδα 57 - B is fastened by a string BC of given length to a point c in the wall; the beam and the string are in a vertical plane : it is required to determine the pressure against the wall, the tension of the string, and the position of the beam and the string.
Σελίδα 293 - Work on a body when it moves the body in the direction in which it is acting, and the amount of work done is measured by the product of the Force and the Distance moved in the direction of the force.
Σελίδα 124 - ... where c is the distance from the neutral axis to the extreme fiber...
Σελίδα 442 - A structure of earth, whether produced by excavation or embankment, preserves its figure partly by the friction between its grains and partly by means of their mutual cohesion. It is by cohesion that a bank of earth is enabled to stand with a vertical face for a few feet below its upper edge, whereas friction alone would make it assume a uniform slope. The cohesion of earth is, however, gradually destroyed by the action of air and moisture, so that its friction alone is the only force which can be...