| In order to understand the effects of the dynamics characteristics of hanging mechanismon the farm implement operational stability, two kinds of research methods, dynamic modeling and vibration test, were introduced. The frequency response method was designed to analyze the resource and the vibration response of a typical parallelogram hanging mechanism widely used in high speed transplanter. This paper introduced a theoretically damping characteristic under the ideal condition. Hammering method was used to get the top three natural frequencies for the hanging mechanism.The results showed that the base excitation frequency of transplanter mainly concentrated in the range of 20~45 Hz and 90~180 Hz. The engine excitation frequency approximately in the range of 26~52 Hz. The second order and third order vibration natural frequencies offered the largest influence on the vibration, the quality factor as high as 9 030.10 Hz and 3211.97 Hz. |
