Research on pressure loss of internal oil circuit of filter casing based on 3D printing technology
In order to study the effect of 3D printing technology on the pressure loss of the internal oil circuit of the aviation engine oil filter casing,the design methods and structures of the 3D printed oil circuit and the machined oil circuit were ana-lyzed and compared.Numerical simulation technology was used to calculate the pressure loss of the 3D printed oil circuit and the machined oil circuit under the same working conditions,and the pressure loss of the two was compared and analyzed through experiments.Numerical calculation and experimental results indicated that,under the same working conditions,the pressure loss of the 3D printed oil circuit was smaller than that of the machined oil circuit.Specifically,under the same flow rate and temperature conditions,the more complex the internal oil circuit was and the more transition points there were,the greater the difference in pressure loss between the two.When the oil circuit structure was the same,the higher the tempera-ture of the fluid and the greater the flow rate,the greater the difference in pressure loss between the two.Due to processing limitations,the interior of the 3D printed oil circuit was relatively rough,and the interior of the machined oil circuit was rela-tively smooth.Under the same flow rate and temperature conditions,the actual pressure loss difference between the 3D prin-ted oil circuit and the machined oil circuit was smaller than the theoretical calculation value.
3D printingfilter casinginternal oil circuitpressure loss
万方数据
维普
