圆锥过渡的阶梯形变幅杆谐振频率的瑞利修正研究  

Rayleigh Correction Study of Harmonic Frequency of Trapezoidal Amplitude of Taper Transition

作　　者：董娜 丁艳红[1,2] DONG Na1,2, DING Yan-hong1,2(1. School of Mechanical Engineering, Taiyuan University of Techology, Taiyuan 030024, China; 2. Shanxi Key Laboratory of Precision Machining, Taiyuan 030024, Chin)

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]精密加工山西省重点实验室,太原030024

出　　处：《煤炭技术》2018年第6期271-273,共3页Coal Technology

摘　　要：研究瑞利修正对圆锥过渡下阶梯形变幅杆谐振频率的影响,设计圆锥过渡的阶梯形变幅杆。借助ANSYS软件对2组不同半径的变幅杆谐振频率进行仿真计算,提出了圆锥过渡下阶梯形变幅杆的瑞利修正法,并进行试验验证。.将理论计算值、仿真值、试验值进行对比,随着截面尺寸的增大,仿真值接近于设计值,但两值之间仍有一定的偏差,经瑞利修正后偏差减小。In order to study the effect of Rayleigh＇ s correction on the resonant frequency of the trapezoid under the transition of the taper, the sliding rod of the transition of the conic is designed. With the help of ANSYS software,the two groups under the different radius of taper transition resonance frequency calculation of solving front proposed tapered transitional ladder type luffing rod under Rayleigh correction method, design test validation. Values of theoretical calculation,and comparison between the simulation value and experiment with the increase of section size, the simulation values close to the design value,but still has a certain deviation between two values,the Rayleigh revised deviation to reduce.

关 键 词：圆锥过渡 阶梯形变幅杆 瑞利修正 谐振频率 模态分析 

分 类 号：TH16[机械工程—机械制造及自动化]