In order to directly describe the inner chamber pressure and the distribution of torpedo exit velocity,this paper builds a inner flow field model of torpedo launcher,and performs a numerical simulation based on the dynamic mesh technique of the software Fluent.

Higher requests are put forward especially on the test of important parameters to interior ballistics,initial velocity and chamber pressure,which greatly effect weapon performance.

Comparison studies of the initial velocity, bore pressure and the leavings after shooting of double-base ball propellant with that of D25 propellant were made by firing tests.

In this paper the maximum distribution of gun pressure stochastic process was studied,and the maximum at the same time and Monte Carlo method to solve the problem were given.

Treatment of pressure measurement signal in furnace pressure control system;

Problems and countermeasures for furnace pressure measurement system of indigenous 300 MW thermal power unit

Firstly,furnace pressure signals were preprocessed.

By experimenting and researching on the overlaps on hight pressure valve covers,analyzes what Cause the overlaps on forgings,makes a new rolling Cavity designing plan whic h avoids the orverlaps and assures the quality of forgings.

Analysis of furnace negative pressure and drum level fluctuation caused by boiler scaling-off and improvement measures;

Optimization of furnace negative pressure automatic control of Labuhan Angin Power Plant in Indonesia