School;
of;
Mechanical;
and;
Vehicular;
Engineering,;
Beijing;
Institute;
of;
Technology,;
Beijing;
100081,;
China;
School;
of;
Mechanical;
and;
Vehicular;
Engineering,;
Beijing;
Institute;
of;
Technology,;
Beijing;
100081,;
China;
Department;
of;
Engineering;
Mechanics,;
Tsinghua;
University,;
Beijing;
100084,;
China;
micropolar; fluids,; dynamic; loads; journal; bearing; tribological; characteristics.;