Simulation and analysis of dynamic pressure effect of gas film on cylinder seal

doi:10.11949/0438-1157.20191501

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Simulation and analysis of dynamic pressure effect of gas film on cylinder seal
	Yu, Shurong; Ding, Junhua; Wang, Shipeng; Liu, Hong; Ding, Xuexing; Sun, Baocai
刊名	Huagong Xuebao/CIESC Journal
	2020-07-01
卷号	71 期号:7 页码:3220-3228
关键词	Cylinders (shapes) Gases Rotation Seals Software testing VerificationDynamic pressures FLUENT software Pressure differences Rotation speed Seal structure Simulation and analysis Spiral groove Test verification
ISSN号	04381157
DOI	10.11949/0438-1157.20191501
英文摘要	For aeroengine cylinder seals, the floating ring is often broken due to insufficient dynamic pressure, which causes the floating ring to rub against. Based on this, the Fluent software is used to simulate the flow field of two kinds of models, namely, the existing cylindrical grooved gas film and the spiral grooved gas film, and carry out with test verification. The results show that for the grooveless gas film model, increasing the eccentricity, rotation speed and pressure difference will increase the dynamic pressure effect of the seal. The increase of eccentricity and pressure difference will increase the leakage of the model, but the change of rotation speed has little effect on the leakage of the model; for spiral groove gas film seal, the increase of eccentricity, rotation speed and pressure difference will increase the buoyancy of the gas film. With the increase of eccentricity and pressure difference, the leakage of the model increases. Based on the above two conclusions, it can be concluded that the speed is the secondary factor affecting the leakage; the spiral groove model has better dynamic pressure effect and less leakage compared with the grooveless model, so it can reduce the friction of floating ring. Therefore, this study has important reference significance for the development of better cylindrical seal structure. © All Right Reserved.
语种	中文
出版者	Materials China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132359]
专题	石油化工学院
作者单位	College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Yu, Shurong,Ding, Junhua,Wang, Shipeng,et al. Simulation and analysis of dynamic pressure effect of gas film on cylinder seal[J]. Huagong Xuebao/CIESC Journal,2020,71(7):3220-3228.
APA	Yu, Shurong,Ding, Junhua,Wang, Shipeng,Liu, Hong,Ding, Xuexing,&Sun, Baocai.(2020).Simulation and analysis of dynamic pressure effect of gas film on cylinder seal.Huagong Xuebao/CIESC Journal,71(7),3220-3228.
MLA	Yu, Shurong,et al."Simulation and analysis of dynamic pressure effect of gas film on cylinder seal".Huagong Xuebao/CIESC Journal 71.7(2020):3220-3228.