反共振振动筛支撑弹簧阻尼的设计与研究  

DESIGN AND RESEARCH ON SUPPORT SPRING DAMPER OF THE ANTI-RESONANT VIBRATION SIEVE

作　　者：胡继云[1] 李盟[1] 

机构地区：[1]河南工业大学机电工程学院,河南郑州450001

出　　处：《河南工业大学学报（自然科学版）》2014年第6期6-8,共3页Journal of Henan University of Technology：Natural Science Edition

摘　　要：以反共振理论为基础,建立反共振振动筛的数学模型,并对其进行动力学分析求解.将质量比和固有频率比代入系统稳态振幅表达式,最后得到系统阻尼率与稳态响应的关系式.根据筛箱和电机架支撑弹簧的不同组合方式,得到不同的阻尼率与稳态响应的关系曲线.根据实际工程特点以及阻尼率和系统一阶共振振幅的关系,确定最佳的弹簧组合方式,也就确定了反共振振动筛支撑弹簧阻尼.In view of the shortcomings of the existing vibrating sieves, a new kind of anti-resonant vibrating sieve was put forward. We established a mathematical model of anti-resonant vibrating sieve based on the theory of anti-resonance, and get the solution after the dynamic analysis. Then the mass ratio and the natural frequency ratio were put into the system of steady-state amplitude solution to obtain the relation between damping rate and steady-state response of the system. According to the different combination manners of springs supporting a screen body and a motor frame, we obtained the relation curve between different damping rates and the steady-state response. According to the practical engineering characteristics and the relation between damping rate and first order resonance amplitude of the system,we determined the best spring combination,that is to say,we determined the support spring damper of anti-resonant vibration sieve.

关 键 词：反共振振动筛 动力学分析 阻尼率 弹簧组合 

分 类 号：TH122[机械工程—机械设计及理论]