Vibration Analysis of Corn Header Silage Module Rack Based on Technological System Evolution

The silage module of the corn header is transformed from the existing silage corn header. The tractor drives the silage module to harvest silage corn, and the performance of the silage module directly affects the quality of the harvest. In view of the strong vibration and unstable performance of the silage module during operation, it is necessary to perform vibration analysis on the frame of the silage module. The 3D model of the silage module was established by Solidworks. The modal analysis of the frame structure of the silage module was carried out by ANSYS. The first 6 modes of the frame and its natural frequency are obtained. By analyzing the intrinsic relationship between the mode and vibration of the silage module frame, the first-order mode of the silage module frame is obtained to resonate with the road surface excitation frequency. Using the technical system evolution rule to analyze the patents related to avoiding resonance methods, it is concluded that the current patent evolution is at a mature stage. It shows that there are enough ways to avoid resonance. Combined with the scientific effects of the How-to model and related patent cases, resonance is avoided by changing the structure of the frame to avoid the excitation frequency of the road surface. (paper)