The abnormal problems oceurred frequently in starting and shutting process of S109FA tandem combined cycle unit manufactured by CE Corporation.

During start up and shutdown periods of steam engine operating, the temperature differences in the wall and between the upper and lower half of cylinder would cause thermal stress、distortions and deformations.

The change regulars of motion track of journal center and the dynamic characteristics and stability of journal bearing with three fixing-lobes were studied during start-up process by solving the Reynolds equation with finite difference method.

Utilizing the calculated start-up behavior of boilers and their drum s fatigue life expectance analysis(according to ASME Code),an optimizing method,based on fuzzy reasoning,for boiler start-up processes is presented.

An experimental investigation for a looped and parallel-grooved pulsating heat pipe (PHP)was carried out to obtain a more steady start-up process for an electrical apparatus with controlling the input heat flux and condensing temperature.

Research on starting process for permanent magnet linear synchronous motors;

Based on the burning models of two different solid ignition grains and powder ring,the starting process mathematic models of the power system were built.

During starting of the plansifter,the transient radius of the circle of gyration increases perceptibly as the excited frequency passes through the resonance area,and the starting process lasts for a long time until the steady motion is reached.