Optimal Design Of Pipeline Structure Of Hydraulic Valve Manifold For Additive Manufacturin

The hydraulic valve assembly block is one of the basic components of the hydraulic system in the field of industrial manufacturing equipment.It can control and adjust the flow rate of the hydraulic system and other related parameters.It can make the structure between the components of the hydraulic integrated system more compact and more convenient to install.It has broad application prospect.Small mass,small volume and high reliability are the requirements for the design and manufacture of hydraulic valve assembly block.The structure of hydraulic valve integrated blocks is complex,and traditional process structures can cause significant energy loss,which makes the energy efficiency of hydraulic valve integrated blocks low,and its traditional processing technology is more complex.In view of the above problems,this paper proposes the optimization design of pipeline structure of the hydraulic valve assembly block for additive manufacturing.According to the structural analysis,structural optimization design and topology optimization design of the internal oil pipeline of the hydraulic valve assembly block,it can improve the energy efficiency of the complex pipeline structure of the hydraulic valve assembly block,and complete the topology optimization and lightweight design of the complex pipeline structure of the hydraulic valve assembly block.3D printing technology was used to verify the feasibility of optimization design of internal pipeline structure of hydraulic valve assembly block.The main research contents of this paper are as follows:(1)Hydraulic valve integrated block pipeline structure analysis.It analyzes the energy loss of fluid in the hydraulic valve assembly block pipe,including pipe resistance analysis and fluid dynamics analysis.Based on Fluent fluid simulation software,the traditional hydraulic valve integrated block pipeline structure L pipeline,Z pipeline and pipeline structure with process holes are numerically simulated.According to the analysis of pipeline pressure cloud map,velocity cloud map,flow diagram and vector diagram,the causes of flow resistance and energy loss in each type of pipeline are given.(2)Hydraulic valve integrated block pipeline structure optimization design.By using Fluent fluid simulation software,the influence of circular arc of outer wall and circular arc of inner and outer wall on right Angle turning of pipeline is analyzed,and the optimal design of right Angle turning of hydraulic valve integrated block pipeline is studied.Considering the design constraints related to additive manufacturing,it can design the self-supporting structure and realize the design of channel section and self-supporting design.Ansys Workbench software is used to perform stress-strain analysis on pipelines with different section shapes,based on the stress distribution diagram of different pipelines and the total deformation diagram of pipelines.Taking into account the parameters of cross section inclination Angle,stress distribution balance and stress limit value,the rectangular cross section pipe with rounded corners is selected,which can realize the self-support in the 3D printed pipe.Finally,according to the working principle and design principle of hydraulic valve assembly block,it studies the optimization design of complex pipeline structure of hydraulic valve assembly block.By comparing and optimizing the velocity cloud image and pressure cloud image of the pipeline,the smooth transition is selected to reduce the negative impact of the traditional flow path shape or size change on the fluid operation.(3)Topology optimization design of bend area of hydraulic valve integrated block.Based on K-ω turbulence model,COMSOL software was used to simulate the flow in the bend,which analyzed the influence of turbulence on the fluid in the bend turning channel of the hydraulic valve assembly block after optimization.Based on mesh gradient adaptive technology,it studies the 2D topology optimization and 3D topology optimization of right-angle steering channels.3D printing technology is used to verify the feasibility of the optimization design method of the internal pipeline structure of the hydraulic valve assembly block proposed in this paper.In summary,the pipeline structure optimization design of the hydraulic valve assembly block for additive manufacturing provides a feasible solution for improving the energy efficiency of the complex pipeline structure of the hydraulic valve assembly block and realizing the lightweight design of the complex pipeline structure of the hydraulic valve assembly block according to the structural analysis,structural optimization design and topology optimization design of the internal oil pipeline of the hydraulic valve assembly block.The theoretical research method and technical support are provided for manufacturing the hydraulic valve integrated block with small mass,small volume and high reliability.