Aiming at the problem of seal failure due to inappropriate choice of magnitude of interference,the interference fit of mosaic-type rotating ring of stern shaft mechanical seal were calculated respectively by theoretical analysis and finite element method.

Studies on environmental vibration induced by urban rail transit;

In situ experiment and analysis of environmental vibration induced by urban subway transit;

Study on environmental vibration and vibration noises induced by the urban rail transit system;

Parameter analysis of combined power cycle with liquefied natural gas cold energy recovery;

On characteristics of heating source and cooling source in nuclear heating reactor cooperation, The paper advances a new kind of power cycle in which a multicomponent mixture as the work fluid, ammonia water Rankine cycle, describes its running principle, and compares it with steam Rankine cycle in the same situation.

Experimental study on rheological property for cement slurry and numerical simulation on its annulus flow;

In order to study the flow characteristic of eccentric annulus flow or other fluids,annular flow experiment devices have been constructed and designed,and particle distribution,speed field and speed distribution of the annulus fluid field have been measured by the technology of PIV(Particle Image Velocimeter),the flow properties of annular field and velocity distribution has been analyzed.

Support has been provided for that annulus fluid instances were numerical simulated with PHOENICS,PHOENICS is used to set up a numerical model of power-law fluid in a concentric annulus flow,by comparing the numerical simulation results for the axis velocity of the power-law fluid in a concentric annulus flow with two dimensional PIV experimental results.

Based on the brake characteristic of water-cooling disc brakes during going down,the FEM model of thermal analysis during cycle braking is established.

The temperature and stress field of wagon wheel under the condition of long ramp way cycle braking in Daqin line have been simulated by using FEM and axial symmetry model.