Dynamic characteristics of open-ends squeeze film dampers with air ingestion

被引：2

作者：

Tang, Zhenhuan ^{[2
]}

Chen, Xi ^{[3
]}

Zhou, Hailun ^{[1
]}

Lu, Yu ^{[2
]}

He, Hongbin ^{[1
]}

机构：

[1] Shenyang Aerosp Univ, Sch Aeroengine, Shenyang 110136, Peoples R China

[2] AECC, Hunan Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China

[3] Wuxi Orient Software Technol Co Ltd, Wuxi 214082, Peoples R China

来源：

INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES | 2024年 / 41卷 / 03期

关键词：

squeeze film damper; air ingestion characteristics; computational fluid dynamics; damping; MODEL;

D O I：

10.1515/tjj-2023-0032

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

In order to explore the air ingestion characteristics of the open-ends squeeze film dampers (SFD), a 3D computational fluid dynamics solution model of the SFD was proposed based. The setting of opening boundary conditions was considered, which was verified experimentally by the bidirectional excitation. The results revealed that with the same precession frequency, the smaller radial clearance leads to the greater oil film damping. An increasing oil supply and oil holes led to the smaller air ingestion range at the end. The design guideline for the open-ends SFD was investigated in the present work.

引用

页码：501 / 511

页数：11

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