非対称断片線形特性を有する系の強制振動について : 第2報, アナコム実験との比較

概要

論文の詳細を見る
Results of analysis, by means of the Fourier series method introduced in the first report, of steady, forced vibrations in an unsymmetrical piecewise-linear system, whose characteristics are composed of two distinct linear regions in relation to not only the restoring force but also to the damping force, are compared with those of the analog-computer experiments performed for the above mentioned system with the help of the auxiliary apparatus composed of electronic limiters and a voltage comparator etc. Main results of the comparison are as follows : 1) Experimental and theoretical values coincide with each other up to satisfactory degrees for the amplitude versus gap diagram and for the waveforms of displacements as well as of velocities. 2) Improved 1st approximation is sufficiently accurate for most engineering purposes in the case of the nonlinearity and frequency range studied by the author and of the staying time ratio less than 0.6,so that the minute details of the waveforms of displacements and velocities are fully reproduced by this step of approximate calculation. 3) To calculate waveforms of displacements and velocities, we utilized their newly obtained expressions which, as the result of summing up of the infinite series for them, include the coefficients of the transformed series only and are of finite terms.
社団法人日本機械学会の論文
1960-07-25