【Abstract】 In the theory of small deflection of plates, the rectangular plate with clamped edges is a difficult problem. Consequently, it has interested a number of world famous scholars, such as .. By6HoB, Prof. S. Timoshenko and A. E. Love. They solved the problem by using different methods. However, if in addition to forces normal to the plates there are forces acting in the plane of the plate, the problem will be mathematically much more involved. To the writers knowledge, no rigorous solution has yet been advanced. This paper suggests a precise method by using the double sine series combined with the well known method of force in tile theory of structures. Judged from the rapid convergence of the series, the method here presented is a very effective one.更多还原