| 摘要 |
PURPOSE:To know the meaning obtained from conversion of various constants of the original vibration into those of the pull-in vibration, i.e., the combinations of original vibrations without having any procedure of calculation and by having a physical lead-in process. CONSTITUTION:The equations I and II are obtained from combination of two Van der pole oscillators A and B, where G shows a combination coefficient. Both oscillators are excited by the external vibrations shown as Rsinw.t. Both oscillators A and B show the oscillation waveforms (a) and (b) respectively when w1=1.05, w2=0.95, G=0.5 and R=0 are satisfied respectively. While an energizing waveform (c) satisfying R=0.5 and W0=0.7 is produced by an external oscillator C. Thus both oscillators A and B are led into the external vibration (c) to produce a pull-in waveform (d). This waveform (d) is decided by an oscillator having no oscillation and an external vibration mode. Furthermore the forming process of the waveform (d) omits the procedure of calculation where various constants of each original vibration are converted into various constants of the pull-in vibration. |
