On a Numerical Calculation Procedure of the Forced Transverse Vibration of Bars

Abstract

In order to develop the studies on portable rotary cutters, the numerical calculation for forced vibration of bars was carried out that seemed to be useful for comlicated bar system with many mass and springs etc.……The frorced vibration of a simply supported bar was also calculated analytically, and compared with it.
There results obtained are as follows;
(1) There was very slight difference between the results by numerical calculation procedure in which the simply supported bar was devided to 20 sections and that by analytical calculation.
(2) The results by 20 sections were almost the same with that by 40 sections
(3) reffering to the number of divided sections, twenty seemed to be ssufficient number for the forced vibration of simply supported bars.
(4) The numerical calculation in this report will be very comvenient when we desire to know the amplitude, the shearing force and the bending moment at any point of bars, which have many mass moments of inertia and springs etc