According to the large quantities of computation,it will transform the overall stable supporting force into the critical force on the single bar and present the μ value of the calculation length coefficient on the question of overall stability according to the calculating object,the single bar.

Stability of periodic impact motion between the vibration screen and single screen perch is investigated by establishing the mechanical model of relation between the vibration screen and single screen perch.

Research on Enveloping Boring Method for Inner Spiral Surface of Single Screw Pump Stator;

Design and application of GD135-3 type supper-short single screw pump;

Running faulty and type selection process are introduced for the slurry pump in phosphoric acid tank area, summarization is made for type selection of slurry pump, as well as for application effect after its reformation; by means of reformation for coupling of single screw pump imported, running rate is increased by 1% , phosphoric gain rate is increased by 3%.

This paper analyzes principle of extrusion recycling and characteristics of various applications based on characteristics of PET film and theory of macromolecule melting steam,especially analyzes and makes a comparison of different features and affection for index of pellalier between single screw and twin screw.

An approximate analytical model describing the melt conveying under the effect of single screw vibration was established by using the self-modified Tanner constructive model,and the coefficient reflecting the effect of vibration force field on the apparent viscosity of the melt was formulated according to the theory of equal viscosity dissipation energy.

The extruding molding process of ultrahigh molecular weight polyethylene (UHMWPE) on a single screw extruder was analyzed, while the mathematic equation to calculate the total extruding press and the theory dealing with the melting mechanism of the raw material were established.

Startup torque dynamic model of single progressive cavity pump in surface-driven pumping system;

The stator of the general single progressive cavity pump is studied in this paper,using finite element analyzing software,at 5 MPa uniformity pressure of the stator,which concluded the stress,the strain and inner-figure deformation of the progressive cavity pump stator,the stator rubber and the stator steel thimble.

The rules of the single progressive cavity pump pressure modeling and transfering were studied based on the theory analysis.

The influences of the structure bend angle of 120mm single bend PDM, stabilizer clearance and deviation angle on friction drag of running PDM were calculated and analyzed.