动静态形位误差对滑动轴承转子系统运行的影响及控制

项目名称： 动静态形位误差对滑动轴承转子系统运行的影响及控制

项目编号： No.51265004

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 徐武彬

作者单位： 广西科技大学

项目金额： 50万元

中文摘要： 节能减排是我国积极应对全球气候变化和走新型工业化道路的战略选择。减少滑动轴承转子系统的能量损失，提高运行稳定性，降低制造成本，是现代滑动轴承转子系统设计与制造的需要。滑动轴承转子系统的制造误差是不可避免的，虽然它们的绝对值很小，但与轴承的间隙相比已经足够大，并对系统的运行产生重要的影响，而传统的研究方法往往不会系统地考虑其制造误差。本项目正是从制造的角度采用非线性油膜力模型系统地研究考虑尺寸制造误差、动静态形位误差及其交互作用时滑动轴承转子系统的能量损失和稳定性的分析和计算方法，运用Taguchi理论系统地定量分析各类制造误差对系统运行特性的影响，并将系统的能量损失与稳定性等联系起来作为优化的目标，寻求最佳的尺寸公差及形位公差的设计方法，使系统的综合性能受制造误差的影响较小。本项目研究工作将使滑动轴承转子系统动力学的研究得到拓展和深入，对滑动轴承转子系统设计与制造具有重要的理论和实际意义。

中文关键词： 滑动轴承转子系统；形位误差；制造误差控制；运行特性；系统稳定性

英文摘要： Energy conservation is a strategic choice for China to confront global climate change and industrialization. To reduce energy losses, improve the operation stability and decrease the manufacturing cost are essential to the design and manufacture of modern hydrodynamic journal bearing systems. Manufacturing tolerances of a journal bearing system are inevitable. Although the absolute size of manufacturing tolerances of a journal bearing system is very small, when compared with the bearing clearance it is large enough to generate remarkable effects on system operating performance, while the traditional research work generally do not systematically consider the manufacturing tolerances of the system. This project studies, from a manufacturing view, modelling, anlyzing and calculating methods of the system energy loss and stability allowing for the dimenssional manufacutring tolerances and the steady state and dynamic geometric tolerances, with a nonlinear oil film force model. A Taguchi method is used to quantitatively analyze the the effect of various manufacturing tolerances on the system operation. The system energy loss and stability are used as the optimization object to find the best method for the design of system dimensional tolerances and geometrical tolerances, which makes the system operation to be robust

英文关键词： Hydrodynamic journal bearings system；Geometric tolerances；Control of manufacturing tolerances；Performance；System Stability