细纱锭子的模态分析  

Modal analysis and experimental study of spinning spindle

作　　者：吴文静 李智浩 于贺春[1] 曹秀成 王进 王东强[1] WU Wenjing;LI Zhihao;YU Hechun;CAO Xiucheng;WANG Jin;WANG Dongqiang(School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;Henan No.2 Textile Machinery Co., Ltd., Xinyang 464000, China)

机构地区：[1]中原工学院机电学院,河南郑州450007 [2]河南二纺机股份有限公司,河南信阳464000

出　　处：《中原工学院学报》2020年第3期21-26,31,共7页Journal of Zhongyuan University of Technology

基　　金：中国纺织工业联合会科技指导性项目(2017104);中原工学院自主创新应用研究项目(K2018YY002)。

摘　　要：为了对锭子的临界转速和运行状态进行预测和控制,对细纱锭子进行了模态分析。首先采用有限元软件求解得出无约束和有约束两种状态下锭子的模态频率及振型。然后运用模态试验锤击法对锭子无约束状态下的模态进行试验,得到了锭子的模态频率。通过对锤击法和有限元法两种结果的对比分析得出:(1)无约束状态下两种分析结果的最大误差未超过8%,说明有限元分析法可以满足工程分析的精度需求;(2)通过对锭子施加约束,实现了工况下对锭子的仿真,通过计算得到不同阶的锭子临界转速和相应振型。研究结果为进一步研究锭子的振动、变形等问题提供了一定的理论依据,为锭子的设计和优化提供了参考。In order to predict and control the critical speed and running state of spindles,the modal analysis of spinning spindles is carried out in this research.First,the modal frequency and mode shape of the spindle in unconstrained state and constrained state are obtained respectively by using the finite element software.Then,the modal frequency of the spindle in unconstrained state is obtained by means of the modal test hammering method.By comparing and analyzing the results of hammering method and finite element method,the following conclusions are drawn:(1)The maximum error of the two analysis results under unconstrained condition is not more than 8%.The reliability of the finite element analysis method is verified,which can meet the accuracy requirements of Engineering analysis.(2)The simulation of the spindle under working conditions is realized by imposing constraints on the spindle.The critical speed and vibration modes of spindles with different orders are obtained by calculating.The research results lay a foundation for further research on the vibration and deformation of spindles,and provide a reference for the design and optimization of spindles.

关 键 词：锭子 锤击法 有限元法 模态分析 

分 类 号：TS103[轻工技术与工程—纺织工程]