Application of main rope's self-balance hanging device;

Through the calculation and analysis of the original models of the Zhuan K2 bogies mounted on cars with different tares as well as the parameters of spring suspension devices designed complementarily, the applicable range of the tare of each car is obtained.

Applied the ADAMS software to dynamic simulate the wheeled tractor suspension device, analysis its force at transportation course, find out the main force parameters of suspension device, then the corresponding optimal design was implemented, provides a theoret- ical basis for practical application and the key position of designing in suspension device.

Study on united equipment of middle or low speed maglev train;

In order to analyze the influences of the factors of the towing attachment on the longitudinal riding comfortability of a tractor trailer combination, an eightdegreeoffreedom model of the tractor trailer combination was constructed.