Gear pump is widely used in hydraulic system. Compared with traditional involute gear pump, double-arc gear pump has advantages of good bearing capacity, stable flow pulsation and low noise. The rotor of the double-circular-arc gear pump adopts double-circular-arc helical gears, and its basic end face tooth profile is generally...
A double arc helical gear pump rotor consists of a pair of meshing helical gears, which are used to transfer fluid from the inlet to the outlet of the pump. The mechanical characteristics of the rotor are crucial for the efficient operation of the pump. The fluid-structure coupling refers...
Fluid-structure coupling calculation is a critical aspect of analyzing the performance of a double arc helical gear pump. It helps understand how the fluid flow interacts with the pump’s mechanical components, such as gears and casing. The fluid-structure coupling calculation involves both fluid dynamics and structural analysis, and the...
High speed and high pressure gear pumps are generally used in aerospace and require extreme weight. For the consideration of material reduction, lightweight, and performance improvement, the structure optimization of the double arc helical gear pump rotor in the lightweight direction was carried out. The optimized shaft has a...
Establish data transmission for the distributed load pressure on the rotating pair obtained from Fluent analysis, and import it into Workbench Structural for pressure loading. The pressure distribution is shown in Figure 1. From the analysis, it can be seen that the equivalent stress and maximum deformation distribution areas...
To analyze and optimize the performance of a double arc helical gear pump, it is crucial to develop a flow field calculation model that can accurately predict the fluid flow behavior within the pump. The model should take into account the fluid dynamics, gear geometry, and motion, as well...
The Double Arc Helical Gear Pump is a positive displacement pump that uses helical gears to transfer fluid. The fluid structure coupling in this type of pump is essential for understanding its performance and efficiency. The basic theory of fluid structure coupling for a Double Arc Helical Gear Pump...
1. Finite Element Mesh Generation of Rotors Utilize the Mesh function in Workbench for finite element mesh generation of structures, and choose the independent mesh generation method as Tetrahedrons, as shown in Figure 1. In addition, the coordinates of the watershed and the coordinates of the rotating pair are...
Use Solidworks software to conduct 3D solid modeling for the rotating pair of double circular arc helical gear pump. The material of the rotor structure of the gear pump model is shown in Table 1 below. Grade Elastic modulus MPa Poisson’s ratio γ Density kg/m3 Yield strength MPa 30CrMnTi...
1. Fluid Control Equation The numerical calculation of the double arc helical gear pump in Fluent needs to follow the basic law of fluid conservation. Its internal flow field is a viscous and incompressible unsteady flow, and its flow control equation is: (1) Continuity equation: For this hydraulic oil,...