摘要
通过Pro/E5.0和ANSYS13.0进行偏心轴的建模与模态分析,计算偏心轴的固有频率和振型,了解其在高速工况下的动态特性问题。利用ANSYS软件中Combin14单元模拟轴承的简单刚性约束。针对轴承刚度的不确定性,分析了偏心轴在不同刚度下的前八阶固有频率和振型,确保了模态分析结果的可靠性,有效地预估结构的振动特性,为选择电机参数提供依据,并为谐响应分析及瞬态分析奠定基础。
Dynamic characteristics in high-speed conditions could be found out by modeling and modal analysis of the eccentric shaft built on Pro/E5.0 and ANSYS13.0 and by calculation of natural frequencies and vibration mode of the eccentric shaft. Unit combinl4 in ANSYS software is used to simulate simple stiffness restriction of the bearing. Aim at the uncertainty of bearing stiffness natural frequencies and mode of vibration in first 8 orders eccentric of the eccentric shaft in different stiffness are analyzed to ensure the reliability of modal analysis results with effective pre-estimation of the vibration performance of the structure that may provide references for the selection of the motor parameters and could lay the foundation for harmonic response analysis and transient analysis.
出处
《机械制造》
2013年第4期4-7,共4页
Machinery
基金
江苏省科技型企业技术创新项目(编号:BC2012023)
关键词
ANSYS
偏心轴
模态分析
固有频率
振型
ANSYS, Eccentric Shaft, Modal Analysis, Natural Frequency, Vibration Mode
