Research results:Lateral movement of box girder can be realized by the traverse machine and slide beam. Longitudinal movement can be realized by hydraumatic pendant wheel-track machine which is 2 400 ton weight with full hydraulic pressure and electric control. Integrated equipments(2 500 ton and 3 000 ton) for beam-move-erection at sea are(adopted) for erection of box girder.
A fuzzy model is built with the knowledge base formed by means of experimental data that is generated by varying the process parameters such as water jet pressure,jet traverse rate and abrasive flow rate at five levels each.
This paper analysed the hydraulic control principle of 7000kN diagonal hydraulic Shear and introduced the action process of the cut and traverse control block, and pointed out the features of the hydraulic system using the high and middle pressure, And described how to determine the number of working pump on the basis of different withdrawal speed.
The influences of ambient pressure, jet pressure, traverse velocity, standoff distance and abrasive concentration on the casing cutting efficiency are experimentally studied under the simulated downhole's conditions.
Discussion on great diameter perforate substitutes with the trough to traverse into technology in opening
NW and NE fractures are main ore-forming, ore-controlling struc- tures. Specifically, NW fracture structures traverse all the ared and control the metallogenetic law of all Pb-Zn-Ag ang Au deposits, which becomes a characteristic in this ared and is also a heart of the matter to settle prediction and prospecting.
In this paper, a language that allows the application to transparently formulate queries to XLink links and traverse the arcs determined by these links is suggested.
% Y2O3 on the traverse rate of a test machine has been studied in the velocity interval of 0.005-50 mm/min.
The correlation time of the force is essentially assumed to be much greater than the time required for the particle to traverse one period of the potential.
Sodium ions can traverse these tunnels and execute a reciprocating motion in them at an approximately thermal velocity.
However, backtracking is used in general combination algorithms to traverse the whole search space which may introduce redundant operations, so performance of the combination algorithm is generally poor.