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4. Rapid prototyping
Rapid prototyping is one of the important methods of processing casting patterns. In lost foam casting, a rapidly prototyping core that is vaporized in casting can be used. In conventional casting, rapid prototyping can accurately and quickly produce a casting pattern. SolidWorks integrates seamlessly with rapid prototyping software, and cast designs in SolidWorks can be imported directly into rapid prototyping equipment for fast manufacturing.
Fourth, the hydraulic simulation platform of the pump
Some general-purpose small pumps can be mass-produced, but the production mode of large-sized pumps is typical of mass-produced production. The batch size of each product is very small. The hydraulic performance test must be carried out before leaving the factory. If the test fails, Also disassemble it for modification and then re-test. Especially for large pumps, the test cost is high and the production cycle is long. Once the design is wrong, the loss will be very large.
The core technology of the pump design is the hydraulic performance design of the flow element. The impeller, volute, fluid guide, baffle, water outlet, water inlet and grid profile will all affect the hydraulic performance of the pump. The flow characteristics of the fluid determine that the overcurrent components and runners of the pump are complex curved surfaces because the flow of fluid in the pump is three-dimensional, including eddy currents and turbulent conditions, and the design must also consider the fixed portion, the rotating portion, and the fluid. The interaction between the complex working conditions is difficult to optimize product performance through the designer's experience and experimentation, so fluid analysis software must be used for simulation analysis.
Fluid simulation software can be used to design a variety of rotating, stationary blade elements to analyze the blade's push and suction effects on water. The blades can be curved or straight, with leading or trailing edges that are linear or combined with beveled edges that can be easily modified from circular to arbitrary elliptic to simple straight lines. The continuity and quality of the hub and casing curves can be checked and divided into two or more line segments. For axial flow turbines, better transonic airfoils can be obtained by designing mutually independent pressure and suction surface curves. By the same method, special treatment can be added near the trailing edge of the suction side.
COSMOSFloWorks is a new generation of revolutionary heat flow analysis software developed for designers. It is embedded in the SolidWorks environment and shares a unified database, user interface and style with SolidWorks. COSMOSFloWorks has powerful gas, liquid, and heat transfer analysis capabilities, enabling automatic and semi-automated mesh segmentation using 3D CAD models directly, providing accurate analysis results quickly and post-processing with dynamic visual effects. Therefore, COSMOSFloWorks has been widely used in the pump and valve industry, in the pump design
The main analysis is as follows:
(1) Find the head, flow and efficiency of the pump according to the pump model and the rotational speed of the impeller;
(2) Calculate the efficiency of the impeller and the head loss of the fluid in the pipeline;
(3) Analyze the cavitation and cavitation generated during the work;
(4) Pressure field distribution and velocity field distribution of the internal fluid of the pump;
(5) the hydraulic load on the surface of the impeller under the action of a fluid;
(6) According to the structure of the water pump and the rotational speed of the impeller, the driving torque of the water pump is obtained.
With COSMOSFloWorks software, the hydraulic characteristics of the pump can be calculated at the beginning of the design, and the number of tests can be reduced, minimizing product development time and reducing risk. At the same time, through the analysis of computational fluid dynamics software, it is also possible to obtain the pressure generated by the fluid flowing in the structure, and provide more accurate boundary conditions for structural design and optimization.
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