摘要
分析双立轴振动搅拌机搅拌机构在不同工况下的受力情况。结合有限元软件分析,得到了搅拌机构的应力应变图以及振型图。针对现有的搅拌机构存在刚度不足的问题,将应变图的变形量与实际变形区的变形量进行了比较,验证了有限元分析的合理性。同时,提出了一种提高搅拌机构刚度的优化方案。经过仿真分析发现,新型搅拌机构在工作时的刚度得到了明显的改善。同时,强度满足工作要求,固有频率与激振器的工作频率也不同,避免了共振现象。这对于减少安全事故的发生有着重要意义,同时也为立轴振动搅拌技术奠定理论基础。
Analyze the force of the agitating mechanism of double shaft vibrating mixer under different working conditions.Combined with the finite element software analysis,the stress,strain and modal shape of the agitating mechanism is obtained.At the same time,the strain pattern is compared with the actual deformation zone to verify the rationality of the finite element analysis.An optimization scheme is proposed aiming at improving the stiffness.After the simulation analysis,the stiffness of the optimized agitating mechanism is obviously enhanced to meet the work requirements.Meanwhile,the strength and natural frequency of the mechanism have also improved.It has an important significance for reducing safety incidents.At the same time,it also lays a theoretical foundation for vertical shaft vibration mixing technology.
作者
赵悟
岳超
沈威威
ZHAO Wu;YUE Chao;SHEN WeiWei(Key Laboratory of Road Construction&Equipment of MOE,Chang'an Unitersity,Xi’an 710064,China)
出处
《机械强度》
CAS
CSCD
北大核心
2020年第6期1496-1502,共7页
Journal of Mechanical Strength
基金
陕西省交通运输厅2017年度交通科研课题(17-28K/211825180109)资助。
关键词
振动搅拌
搅拌结构
有限元模拟
模态分析
结构优化
Vibratory agitating
Agitating mechanism
Finite element simulation
Modal shape
Structure optimization
