Optimization Design and Reliability Analysis of Salix Cutting Tools based on Finite Element Method

摘要

Slight vibrations in the reciprocating brush cutter blade reciprocating motion will seriously affect crop quality problems. A method of application of topology optimization theory for the stubble cutter method was put forward in this paper. Firstly, the finite element software ABQUS was used to simulate the stubble of Salix psammophila, and the stress of the blade during the stubble was obtained according to the stubble blade during the stress conditions of topology optimization. According to the comparison of the simulation cutting conditions before and after double-action cutting, the stress is more uniform after optimization, the maximum force is reduced, and the stubble effect is obviously improved. Through theoretical analysis and cutting test analysis of tool life after topology optimization, it was found that the topology optimized double-action knife is improved and has a longer life expectancy. This study provides the basis for the development of reciprocating shrub stubble blades.