| 利用拉伐尔管技术提高气体轴承实验台主轴转速 |
| |
| 引用本文： | 魏明明,卢志伟.利用拉伐尔管技术提高气体轴承实验台主轴转速[J].机械设计与制造,2011(6). |
| |
| 作者姓名： | 魏明明 卢志伟 |
| |
| 作者单位： | 西安工业大学,机电工程学院,西安,710032 |
| |
| 基金项目： | 陕西省教育厅专项科研计划项目 |
| |
| 摘 要： | 为了提高气体动静压径向轴承实验台主轴转速.根据气体动力学理论,建立了气体在喷管中流动的基本微分方程组,并分析了在不同音速下的截面变化规律.以马赫数为主要设计参数,建立了拉伐尔管内部曲线方程,并利用VB6.0对其内部曲线和压力进行了辅助设计,仿真结果显示当拉伐尔管中喉部压强为0.21MPa时,从拉伐尔管中喷出的气体流速的马赫数可达1.6.把实际加工的拉伐尔管应用到气体轴承实验台主轴上,使实验台主轴转速由原来的最高转速3495 r/min提高到5000 r/min左右.
|
| 关 键 词： | 拉伐尔喷管 微分方程 设计参数 主轴转速 |
LAVAL nozzle technology for increasing spindle rotary speed of gas bearings testing stand |
| |
| WEI Ming-ming,LU Zhi-wei.LAVAL nozzle technology for increasing spindle rotary speed of gas bearings testing stand[J].Machinery Design & Manufacture,2011(6). |
| |
| Authors: | WEI Ming-ming LU Zhi-wei |
| |
| Affiliation: | WEI Ming-ming,LU Zhi-wei(School of Mechatronic Engineering,Xi'an Technological University,Xi'an 710032,China) |
| |
| Abstract: | In order to increase the spindle rotary speed of dynamic and static pressured gas bearings test stand,differential equations of gas flowing in nozzle are constructed based on the theory of air dynamics,and the law of cross section in which gas flow at different speed are analyzed.Taking Mas principal parameter,the curve equation for inner LAVAL nozzle is established,which inner curve and pressure are auxiliary designed using VB 6.0.The results shows that the M for speed of gas from LAVAL nozzle has reached ... |
| |
| Keywords: | LAVAL nozzle Differential equation Design parameter Spindle rotary speed |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
