基于ANSYS的减震弹簧动力学分析  

Dynamic Analysis of Damping Spring Based on ANSYS

作　　者：李栋[1] 刘晗[1] 高娟[2] 密善民 

机构地区：[1]济南大学机械工程学院,济南250022 [2]济南大学资源与环境学院,济南250022

出　　处：《现代制造技术与装备》2014年第5期1-2,43,共3页Modern Manufacturing Technology and Equipment

摘　　要：应用UG7.0建立了减震弹簧的实体模型,并将模型导入ANSYS得到了减震弹簧的有限元模型,通过模态分析,得出减震弹簧的第一阶固有频率最小,约为振动筛振动频率的4.3倍,故减震弹簧能够满足不产生共振的频率条件;通过响应谱分析,得出减震弹簧的等效平均应力为261MPa,该值远小于减震弹簧的最大许用应力,故减震弹簧在承受地震谱作用时不易发生疲劳破坏。Entity model of damping spring was established by UG7.0, and the model was imported into ANSYS , then the finite element model of damping spring was established . By model analysis , it was concluded that the first natural frequency of damping spring was the minimum , which was about 4 . 3 times that of the vibrating screen . So the damping spring would not resonate . Through response spectrum analysis , it was concluded that the equivalent average stress of damping spring was 261MPa, which was far less than the maximum allowable stress of damping spring . So the damping spring would not be prone to fatigue failure when it was subjected to seismic spectrum .

关 键 词：减震弹簧 动力学分析 

分 类 号：TH135[机械工程—机械制造及自动化]