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依据金属橡胶多孔材料的制备工艺及内部微观组织结构特性,确定了影响圆环形金属橡胶节流元件水力学性能的所有参数,利用相似性定理中的量纲相似理论(π定理),推导出了影响圆环形金属橡胶多孔材料水力学特性的8个相似准判据:λ,Re,φ,dM/D,L/D,dM/dS,ρ/ρM,r1/r2,利用这些相似性判据可以直接推导出环形金属橡胶节流元件的节流特性和水力学性能,为实验研究提供了理论依据,极大地减少了实验工作量和实验及分析工作的盲目性.图1,参10.
According to the preparation process of metal rubber porous materials and the internal microstructural properties, all the parameters that affect the hydraulic properties of the annular metal rubber throttling element were determined. Using the similarity theory (π theorem) in the similarity theorem, we deduced The eight similar quasi-criteria that affect the hydraulics of circular metal-rubber porous materials are λ, Re, φ, dM / D, L / D, dM / dS, ρ / ρM and r1 / r2. The criterion can directly deduce the throttling characteristics and hydraulic properties of the annular metal rubber throttling element and provide a theoretical basis for experimental research, which greatly reduces the experimental workload and the blindness of experimental and analytical work. .