Thebearing capacity and the stiffness of radial magnetic bearings was studied by usingthe equivalent charges of magnetism,overcoming two drawbacks of previous research : a magneticring was taken as an unlimitedly long magnetic bar and the bearing force of magnetic bearings couldonly be estimated.
目前，尽管磁浮轴承技术的研究与开发应用已经受到国内外学者的广泛重视，但在永磁向心轴承承载能力的研究方面，却还存在着两个尚待解决的问题：一是将环形磁体作为无限长条形磁体处理，二是只能对轴承承载能力进行估算。
Technology improvement of withdrawal ring of punched hole die for bearing ribbon cage;
轴承浪形保持架冲孔模退料环的工艺改进
Analysis of grinding method for bearing ring with double grooves;
双沟轴承套圈沟道磨加工方法浅析
Design on Automatic Nondestructive Examination System of Axletree s Quality and Reseach on Intelligent Appraising;
轴承质量自动化无损检测系统设计及智能评判方法研究
The bottom die with axletree configuration is designed.
依据圆柱斜齿轮几何结构,设计出合理模具工装;将凹模设计成轴承式凹模,当锻件顶出时,凹模自动沿轴向自转,锻件被旋出凹模;采用三维刚粘塑性有限元法对其成形进行数值模拟分析,得到成形过程中的等效应力、应变分布图以及载荷-行程曲线图;模拟结果表明,坯料向齿腔充填时,齿根处等效应力、等效应变值较大;最后充填阶段,齿顶处等效应力、等效应变值较大,载荷也出现陡增现象。
Improvement of Operating Technology of Bearings for Back-up Rolls on Medium Plate Mill;
中板轧机支承辊轴承使用技术的改进
The Research Actuality and Development Trends of Water Lubricated Bearings;
水润滑轴承的研究现状与发展趋势
Property comparison of PM bronze bearings manufactured in Europe and North America;
欧洲与北美制造的烧结青铜含油轴承性能的比较
Analysis for Raising Life of Gear and Bear;
提高齿轮、轴承使用寿命的研究
The Design of Heavy Load Bear Lubricate Grease s Lifetime Testing Machine;
重负荷轴承润滑脂寿命试验机的设计
Change the Rubber Bearing into the Oil Bearing and Performance Analysis of It to the Small Turbine;
小型水轮机橡胶轴承改造为油轴承及性能分析
A low frequency rolling bearing fault diagnosis method based on local projective noise reduction;
基于局部投影降噪的低频轴承故障诊断
According to characteristics of both the vibration signals and the stator currents when appering a fault in the rolling bearing of the induction motor,Park vector module signal of the three-phase current is calculated,and the envelope of vibration signals from the rolling bearing of the motor is analyzed.
根据感应电机轴承发生故障时的振动信号特性以及定子电流特性,求出三相电流的Park矢量模信号,并将其与电机滚动轴承振动信号经解调处理后的包络信号进行融合分析,可以从振动信号与电流信号的融合谱图中有效地提取轴承故障特征信息,并将其作为故障识别的依据。
Because the signal from rolling bearing is non-linear and non-Gaussian, here, the bispectrum analysis method is applied to the different types of rolling bearing and the different serious extent for the same bearing fault.
针对滚动轴承具有非线性和非高斯的特性,利用双谱分析方法研究了不同故障模式下滚动轴承的双谱特性以及同一故障类型在不同程度时的双谱特性。