Abstract
Intending to design shipboard scales, the authors have discovered two ways: the first involves determining the difference in the angles of deviation of two independent levers which swing in a similar manner when the base moves; the second involves designing the levers so as to cancel the influence of the motion of the base as a whole.
In the both cases, it is basically important to understand the behavior of the simple lever suspended by an elastic fulcrum which is fixed on the moving base.
In this paper, the authors derive the general equation of motion for the simple lever, assuming that the base swings according to θ=θ0 cos ωt, where θ is the reclining angle of the base.
Solving the equation, the authors characterize the behavior of the simple lever.
In the following paper, experimental results which agree well with the above theory will be presented.
