Hydraulic engineering; a practical treatise on the principles of water pressure and flow and their application to the development of water power, including the calculation, design and construction of water wheels, turbines, and other details of hydraulic power plants (1909)
American School (Chicago, Ill.), Black, Adolph, Turneaure, Frederick Eugene, 1866- · Chicago American School of Correspondence · leaf 28
ts BDand CE of the trapezoid representing the pressures. By the method explained in the paperon Strength of Mater-ials, Art. 4:8, we iind the center of gravity of the trapezoid oflength I to be at a distance from B equal to 2 -i + ^^ 3 //, + h.. (12) Another form of expression can be obtained by… … Fig. 15. represented by AEC. Then by pr()j)oi-tioii we would have //, AB \ . AB ^ , . . , . , , , . y- = ——=^, or A, = A^ --r-T^- substituting tins value tor//j in equa-tion 12, and reducing, we have 18 HYDRAULICS AB 2 2~ 7 AC 3 AB + AC (13) 13. Center of Pressure on Plane Areas of Any Form.…
