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When a beam structure is subject to actuating force within the elastic range, the deflection caused by the force is produced. The design of the supporting mechanism is usually used to reinforce the structure and minimize the deflection. This work presents an inverse approach to determine the location and magnitude of the resistant force to compensate the deflection of a cantilever beam. Assume that the mechanical property of the beam is homogenous and linear. The slope and deflection of the beam under external loading can be determined by discretizing the beam with proper boundary condition. Therefore, the relation defining the actuating force and the beam deflection can be constructed. For a known beam deflection or slope, the proposed method can calculate the resistant force and produce an opposite deflection to compensate the beam deflection. This study provides an efficient way to synthesize a designated deflection of a cantilever analytically
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