Finite Element Analysis About Stator of Opposed Biconinal Cone Screw High-Pressure Seawater Hydraulic Pump

Proceedings of the Institution of Mechanical Engineers, Part C:

et al. 2018

Self Cite

Design method of the tool profile for machining the mold was found to facilitate the casting or extrusion of the bush of cone screw seawater hydraulic pump within this paper. Mathematical expression of the theoretical tool profile was established, as well as equation of the contact line between mold and tool surface, based on meshing theory and coordinate transformation theory. As solving contact condition involves implicit functions and trigonometric functions, only with methods of numerical discretization analysis by using the fzero function to solve single-variable nonlinear equations, can the contact line trajectory and theoretical curve of tool profile be obtained quickly and accurately. The tool profile design for manufacturing the mold lays a foundation for the processing of pump bush.

Section: Structure and Working Principle Of Obcshp-shpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tool profile design for the mold for machining the bush of cone screw seawater hydraulic pump

Chen

Proceedings of the Institution of Mechanical Engineers, Part C:

et al. 2018

Self Cite

“…The Finite Element Model of the Metal Cone Screw and Rubber Bush. The internal and external surface of the bush contains two types of conjugated surfaces [9]. The finite element assembly model of the bush and cone screw is established by Pro/E and ANSYS.…”

Section: Finite Element Model and Analysis Of The Cone Screw And Bushmentioning

confidence: 99%

Three Dimensional Finite Element Interference Contact Analysis about Cone Screw and Bush of Opposed Biconinal Cone Screw High-Pressure Seawater Hydraulic Pump

Cao

Sun

et al. 2012

AMM

The main components of the opposed biconinal cone screw high-pressure seawater hydraulic pump is the rubber bush and metal cone screw, and the interaction of the bush and cone screw is one of the main factors affecting the novel pump performance. The deformation and stress of the bush and cone screw under the initial interference is analyzed by the nonlinear finite element analysis. The analysis shows that: under the effect of the initial interference, large displacement is present to the radial surface of the cone screw, and the displacement of the radial surface mainly affects the displacement vector sum of the cone screw, and the deformation decreases gradually from the middle to the ends of the cone screw, while the cone screw is bending; the deformation in three direction of the bush is close to each other, but the location of the maximum displacement in each direction is different; with the shrink range increasing, the deformation of the cone screw and bush increases, but the deformation of the cone screw is much smaller than that of bush, so the deformation of the bush mainly affects the seal between the cone screw and bush, and the shrink range between the cone screw and bush decreases because of the deformation of the bush. Over the role of the interference force, the maximum von mises stress of the cone screw is an order larger than that of bush, and the maximum von mises stress both increases with the shrink range increasing; although shrink range is different, the location of the maximum von mises about the cone screw and bush is the same.

Three-Dimensional Modeling of Opposed Biconical Cone Screw High-Pressure Seawater Hydraulic Pump

Gong

et al. 2013

AMM

The rotor and stator were major components of the opposed biconinal cone screw high pressure seawater hydraulic pump, which precision of design and manufacture was particularly high, and the combining status between the stator and rotor has a significant impact on the performance of the new type pump, so the related research on above problems are carried out. In order to satisfy the demands of design efficiency and manufacture decision, a fast and simple way was presented to model 3D cone screw and bushing. Three-dimensional space Cartesian coordinates of cone screw and bushing profile with MATLAB programming were obtained according to the cone screw and bushing surface equation and the design parameters,3D curves of cone screw and bushing with MATLAB were rendered, and the feature point space coordinates were imported to Pro/Engineer so as to build cone screw and bushing solid model. Finally, making virtual assembly and checking interference on the screw and the bushing were necessary. The proposed method can make the complex 3D modeling more accurate, feasible and efficient.