轴承滚动体故障诊断，故障设置为滚动体局部剥落，故障特征频率为外环通过频率或倍频理论计算得到218.98Hz.-Rolling bearing fault diagnosis, fault set rolling local spalling, the failure characteristic frequency for the outer ring through the frequency or frequency theoretical calculations 218.98Hz.

本代码用于计算稳态流下非饱和土极限承载力，适用于普朗德尔无重介质假定。(This code is used to calculate the ultimate bearing capacity of unsaturated soil under steady flow, which is suitable for the assumption of prandl Del without heavy medium.)

通过MATLAB软件研究齿轮-滑动轴承的分岔混沌动态特性(Study on the chaotic dynamic characteristics of the gear sliding bearing by MATLAB software)