The film pressure perturbation equation of journal bearing with micro-polar lubricants was given, and finite element method was employed to study film stability of herringbone grooved journal bearing with micro-polar lubricants.

Through study of film stability of the modal the first stability limit and the second stability limit were determined and a stable region was divided, which confirmed existence of a upper stable region.

This paper studies the film stability theory of the sliding bearing system with elastic support, analyzes the film stability by means of linear method followed by determining the first and second stability limit as well as a stable region, and deals with the concrete measures of improving the stability.

Experiments were carried out to investigate the oil-film instability fault behaviors, including oil-film whirling and oscillating, on a special-designed test rig for single-span rotor system.

The numerical simulation shows that in the region of low rotational speed where the oil-film instability do not occur, period doubling bifurcation and chaos take place as the cracked shaft stiffness alteration ratio increases, and the whirl amplitude decreases with increasing of the rotational speed until the unsteady and non.

The change of bearing №2 and №3 results in heavy load in bearing №2 and light load in bearing №1, and leads to oil film instability of bearing №2 and №1.

Cholesteryl hemisuccinate as liposomal membrane stabilizer and its use in the preparation of saikosaponin-D liposomes;