基于ABAQUS的苜蓿割草机切割过程仿真与关键部件参数优化

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中图分类号：S225.92 文献标识码：A 文章编号：2095-5553（2025）08-0149-07

Abstract：Aimingtoaddress thechallenges inmechanizedalfalfa harvesting，suchasimprecisestalkcutting，significant plantdamage，extendedregenerationcycles，andreduced forageyield，thephysicalandmechanicalpropertiesof alfalfa stalks were testedand analyzed.Based on the findings，ontological equations representing the stalk characteristics were developed.Using computer-basednumerical simulation techniques，thecuting process of keycomponents in thealfalfa mowing machine was modeled，leading tothe structuralandoperational optimizationof thecuting parts.Theoptimized parameters for the cuting mechanism were as follows：a cutting edge angle of 20∘ ，a radius of curvature of 0.1mm blade thickness of 4mm ，rotational speed of 2 045r/min ，forward operating speed of 3m/s ，and cutting angle of 40∘ ： Theresultsoffield tests showed that key components of harvesting machine after optimization design significantlyreduced stalkdamage during harvesting.Thisresearch holds substantialpractical significance foradvancing the mechanized harvesting technologyandequipmentforalfalfainChina.Italsocontributestothehighqualitydevelopmentofthealfalfa industry by promoting greater efficiency and minimizing crop loss during the harvesting process.

Keywords：alfalfa；mower；dynamics simulation；response surface analysis；parameter optimization

0 引言

紫花苜蓿草对养殖业和农业生产起到关键支持作用[1]。（剩余7393字）