摘要
为了解决旋耕钉齿式耕层残膜回收机钉齿起膜部件在工作过程中的受振动影响,研究了钉齿的最小固定频率;避免共振现象的发生;探究了钉齿在土壤工作中的变形和应力分布,为钉齿的优化提供依据。采用Pro/E和ANSYS等软件利用有限元仿真分析方法 ,对钉齿进行模态分析和瞬态动力学分析,得到了钉齿的最小固定频率为278.59Hz、钉齿的总变形为0.913 31mm、最大等效应力为183.53MPa、最大弹性应变为9.21×10-4、最大安全系数为15。通过数据得出钉齿工作时不会发生共振现象,并且钉齿能够满足使用要求。
In order to solve the rotary nail tooth Topsoil residual film recovery machine nail tooth has affected by vibration of membrane components in the process of work,study the minimum fixed frequency nail tooth,to avoid the occurrence of resonance phenomenon.At the same time,the deformation and stress distribution of the nail in the soil are also studied to provide the basis for the optimization of the nail.Using Pro/E and ANSYS software,the finite element simulation analysis method is used to carry out the modal analysis and transient dynamic analysis.The minimum fixed frequency is 278.59Hz,the maximum equivalent stress is 183.53MPa,the maximum elastic strain is 9.21×10-4,the maximum safety factor is about 15,and the maximum effective stress is 0.91331mm.Through the data,it can be concluded that the resonance phenomenon will not occur when the nail is working.
出处
《农机化研究》
北大核心
2018年第4期14-18,25,共6页
Journal of Agricultural Mechanization Research
基金
国家星火计划项目(2015GA891005)
国家自然科学基金项目(11562019)
新疆生产建设兵团科协调研项目(2016CE007)
塔里木大学校长基金创新群体项目(TDZKCX201501)
关键词
残膜回收机
钉齿
模态分析
瞬态动力学分析
nail tooth
plastic film recycling machine
modal analysis
transient dynamics analysis
