고체역학 (Gere) — Shear Forces and Bending Moments: Problem 4.5-36

4.5-36 A simple beam AB supports two connected wheel loads 3P and 2P that are a distance d apart (see figure). The wheels may be placed at any distance x from the left-hand support of the beam. (Assume P = 12 kN, d = 2 m, and L = 15 m.) (a) Determine the distance x that will produce the maximum shear force in the beam, and also determine the maximum shear force \(V_{max}\). (b) Determine the distance x that will produce the maximum bending moment in the beam, and also draw the corresponding bending-moment diagram.