Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Abstract:With the fast development of stockbreeding, the demand for herbage is increasing year by year. The herbage cutting and chopping machine is designed to improve the utilization rate of herbage. Since the framework of the machine is the non-working part, for the purpose of reducing the cost, it's necessary to simplify its structure on the premise of satisfying the strength requirement and avoiding possible resonance. In this paper, we introduce a herbage cutting and chopping machine, the framework structure of which need to be optimized. Firstly, the frame is analyzed by ANSYS. Through modal analysis, we obtain the critical speed that can lead to the possible resonance. According to analysis results, we optimize the frames structure, which improves the stress state, simplifies the structure and avoids the possible resonance. This work provides reliable theoretical basis for the design and improvement of the framework.