当前位置: X-MOL 学术Math. Probl. Eng. › 论文详情
Research on Sensitive Measuring Points for Vibration Fault of NC Turret Based on Energy Flow and Transfer Path
Mathematical Problems in Engineering ( IF 1.009 ) Pub Date : 2021-02-22 , DOI: 10.1155/2021/8830505
Fei Chen; DeCong Zhang; Wei Luo; Binbin Xu

Some equipment fault measurement points are difficult to determine. Thus, this study proposes a method using energy flow and transfer path to select sensitive measurement points. Firstly, based on the energy flow theory of the shell, the energy flow is taken as the physical quantity to describe the energy transfer of the structure vibration, and the energy-based transfer path analysis method is established. Secondly, the simulation model of the finite element energy flow was established by focusing on the NC turret, and the vector image of the energy flow transfer path of the NC turret shell was created. For the relationship between the vector images of the experimental and simulation energy flows, the validity of the finite element energy flow simulation results is verified. Lastly, three abnormal areas of the NC turret shell are identified by comparing and analyzing the energy flow vector images of the NC turret in the healthy and fault states, taking the poor meshing fault of the grooves as an example. By choosing nine test points in the abnormal areas and calculating the distribution rate of the transfer paths between the test points to the joint surfaces of the fluted disc, the energy flow distribution rate of the different fault positions to the test points is obtained. Calculation results enabled us to identify three measuring points that can accurately distinguish the fault location for a typical fault mode. This research combined energy flow theory and transfer path analysis method to determine the vibration fault sensitive measuring points of NC equipment. The proposed method is practical in the field of fault diagnosis and has broad application prospects.

中文翻译:

基于能量流和传递路径的数控转塔振动故障敏感测量点研究

一些设备故障测量点很难确定。因此,本研究提出了一种利用能量流和传递路径选择敏感测量点的方法。首先,基于壳体的能量流理论,以能量流为物理量来描述结构振动的能量传递,建立了基于能量的传递路径分析方法。其次,以数控转塔为重点,建立了有限元能量流的仿真模型,建立了数控转塔壳体能量流传递路径的矢量图像。对于实验能量流和模拟能量流的矢量图像之间的关系,验证了有限元能量流模拟结果的有效性。最后,通过比较和分析正常状态和断层状态下数控转塔的能量流矢量图像,确定了数控转塔壳体的三个异常区域,以沟槽的啮合不良为例。通过在异常区域中选择9个测试点并计算测试点到沟槽盘接合面之间的传递路径的分布率,可以得出不同故障位置到测试点的能量流分布率。计算结果使我们能够确定三个测量点,这些测量点可以准确地区分典型故障模式的故障位置。本研究结合能量流理论和传递路径分析方法,确定了数控设备振动故障敏感的测量点。
更新日期:2021-02-22
全部期刊列表>>
牛年开工季
JCR Q1医学全学科
新春生命科学
新春医学
空气污染与健康
虚拟特刊
亚洲大洋洲地球科学
NPJ欢迎投稿
自然科研论文编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
阿拉丁试剂right
上海中医药大学
南科大-连续三周2.26
西湖大学
化学所
北京大学
厦门大学
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
清华
南方科技大学
中国石油大学
天合科研
x-mol收录
试剂库存
down
wechat
bug