tube-in-tube system
1.The work in the dissertation has built the solid foundation for the further development of the virtual production system that covers the all of in tube making processes. The integrated system introduced in the dissertation can be extended to simulate the bar rolling processes and the structural section steel rolling processes.
6.Based on the analyses of the investment of nozzle tube net and relationship between the annual operation cost and tube diameter function of a fixed spray irrigation system, a mathematic model to calculate the economical tube diameter of a spray irrigation system is developed by using the minimum expense norm and nonlinear planning theory in engineering economic analysis, and a direct calculation formula for the economical tube diameter in unrestrained conditions is presented.
7.MICROWAVE SYSTEM FOR VELOCITY MEASUREMENT OF MODEL IN TRANSMITTING TUBE OF DIAMETER 50mm
8.In this paper, the basic condition in which ball tube mill do its best to wok is discussed, and the reason it is difficult to put control arithmetic into use is also discussed. So a new type nonlinear feedback strategy—Auto-disturbance-rejection controller(ADRC)is used for ball tube mill control system with the properties of strong coupling, tardiness, inertia ,complicated dynamic character and difficult established precise mathematics model and this controller is improved.
9.In reference to simulation system of air gun firing-spinning tube receiving in 5124 factory bought from America and AD report that Harry Diamond laboratory has released about simulating setback and spin of fuze in fire ,design a new simulation system to simulate setback and spin of fuze in fire , whose diameter are less than 76.2 mm.

