某离心式通风机主轴系统振动特性的影响因素研究  

Study on factors affecting vibration characteristics of spindle system of a centrifugal fan

作　　者：蒋红琰[1] 

机构地区：[1]江苏科技大学,江苏镇江212003

出　　处：《矿山机械》2016年第1期20-23,共4页Mining & Processing Equipment

摘　　要：采用刚体动力学理论简化某离心式通风机主轴模型,利用拉格朗日方程推导出该转子系统的动力学方程,求解可知:主轴系统的振动与主轴转速、系统不平衡量、叶轮重力以及主轴质量正相关,与轴承刚度负相关。并根据求得的动力学方程计算出通风机主轴质量对系统振动的影响。The rigid body dynamics theory was applied to simplify the model of the spindle of a centrifugal fan,and Lagrange equation was used to deduce the dynamic equation of the rotor system. The solution showed： the vibration of the spindle system was positively related to the spindle velocity,system unbalance,impellor gravity and spindle mass,and negatively related to the bearing stiffness. In addition,the infl uence of the spindle mass on the system vibration was calculated according to achieved dynamic equation.

关 键 词：离心式通风机 主轴 动力学方程 拉格朗日方程 振动 

分 类 号：TD441.1[矿业工程—矿山机电]