摘要
针对一设计的振动筛是否存在的疲劳失效问题,对其自身结构的固有动态性能进行了研究,建立了振动筛简化后的三维结构图,分析了振动筛有限元建模需处理的关键问题,并进行了有限元模态分析,获得了筛框的固有频率与振型,得出振动筛本身的动态性能满足设计要求的结论。模态分析结果为之后进行模态试验中响应点与激振点的布置以及为动载荷结构设计提供重要的参数依据。
In view of the fatigue failure existing in the designed shaker, this paper researches on the inherent dynamic performance of its structure, establishes the simplified three-dimensional structure drawing, analyzes the key problems needing to be handled in its finite element modelling process, does the finite element modal analysis and obtains the inherent frequency and vibration mode. Therefore, the shaker＇ s dynamic performances meet the design requirements. The modal analysis results can provide the reference basis for the modal experiment of the layout of the excitation points and response points and the dynamic load structure design.
作者
武宜梁
李祥
张臣
张瑞宏
缪宏
WU Yiliang LI Xiang ZHANG Chen ZHANG Ruihong MIAO Hong(School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China)
出处
《机械制造与自动化》
2017年第1期107-110,共4页
Machine Building & Automation
基金
国家中小企业技术创新基金(13C26213201910)
江苏省高校自然科学基金(BKJB460016)
江苏省科技计划项目(BE2013110)
江苏省产学研前瞻性联合研究项目(BY2013063-11)
关键词
振动筛
有限元
模态分析
固有频率
振型
shaker
finite-element
modal analysis
inherent frequency
vibration mode
