Key;
Laboratory;
of;
Safety;
Science;
of;
Pressurized;
System;
of;
Ministry;
of;
Education,;
School;
of;
Mechanical;
and;
Power;
Engineering,;
East;
China;
University;
of;
Science;
and;
Technology,;
Shanghai;
200237,;
China;
角接触球轴承; 转子系统; 刚性转子; 周期运动; 分岔; 非线性非自治系统; 轴承系统; 轴向载荷;