Finite Element Analysis And Improvement Of The Frame Structure Of Sugarcane Cutter And Paver In Hilly Mountainous Area

As the largest sugarcane growing area in China,the topography of Guangxi is mainly hilly and mountainous,which makes it difficult for domestic and foreign large and medium-sized sugarcane harvesting machines to be applicable to the area,coupled with the loss of rural labor force in recent years,which makes the low efficiency of sugarcane harvesting and the increase of labor cost.Therefore,the research of lightweight and practical sugarcane cutting and paving machine which is applicable to the topographical features of Guangxi can improve the efficiency of sugarcane harvesting and promote the development of mechanized sugarcane harvesting production.This paper adopts modeling and simulation technology to design a sugarcane cutter frame structure and analyze and improve it to ensure that the mechanical properties of the frame meet the design requirements with a certain degree of light weight.The specific research of this paper is as follows:(1)The preliminary work is mainly through collecting and reading relevant literature,field visits,etc.,to understand the development of sugarcane harvesting machinery research at home and abroad,and propose the use of 3D design software UG to design a sugarcane cutter frame structure suitable for hilly and mountainous areas with a modular multi-purpose tractor as the power source.The finite element model of the frame structure is established by using Hyper Works finite element simulation software,and the dynamic load coefficients and constraints under typical working conditions are determined and then solved to analyze the deformation and stress of the frame to provide a reference for the improved design in the later paper.(2)Combining the results of finite element analysis and the problems of the sugarcane cutter in the process of use,the structural improvement design of the frame is carried out,and the static analysis and free modal analysis are carried out again.The analysis results show that the stiffness and strength of the improved frame structure meet the design requirements,and the inherent frequency of the frame structure avoids the idling frequency of the engine and meets the dynamic characteristics requirements.(3)Based on the optimized design of the frame structure under the most dangerous ultimate torsional condition,15 sets of design variables are selected to optimize the size design with the minimum overall mass of the frame as the optimization target,and the optimized results are compared.(4)The prototype of the sugarcane cutter and paver was tested on paved road and unpaved road,and the field test of the sugarcane cutter and paver was conducted to check the working operation of each mechanism.