气体轴承实验台管道非定常流动初步研究  

Primary Study on Pipeline of Non-steady Flow of Gas Bearing Test-bed

作　　者：郭良斌[1] 赵运翔 李旭东[1] 

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081

出　　处：《机床与液压》2016年第3期86-88,共3页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51475341)

摘　　要：为研究气体轴承实验台管道气体流动特性,尤其是管道内速度、压力的变化,采用特征线法对简化管道模型的一维非定常流场进行计算。计算结果表明:该模型能够计算定压容器管道的非定常流动特性,特征线法能满足计算精度与计算速度要求。研究结果为实验台的进一步设计、可靠性评价和优化提供了一种可能的方法。The gas flow characteristics are studied of the pipeline of the gas bearing test-bed,especially the pipeline velocity and pressure changes. By using the method of characteristics,the flow field was calculated by simplifing the model to one-dimensional( 1D) non-steady flow. The calculation results show that the model is able to calculate the flow characteristics of the pipeline non-steady flow of constant pressure vessel. Method of characteristics can satisfy the requirements of accuracy and computation speed. The study result provides a possible approach for the further design,reliability assessement and optimization of the test-bed.

关 键 词：气体轴承 管道 非定常流动 特征线法 

分 类 号：TH47[机械工程—机械制造及自动化]