Effect of the load direction on non-nominal five-pad tilting-pad journal bearings

被引：60

作者：

Phuoc Vinh Dang ^{[1
,2
]}

Chatterton, Steven ^{[1
]}

Pennacchi, Paolo ^{[1
]}

Vania, Andrea ^{[1
]}

机构：

[1] Politecn Milan, Dept Mech Engn, Via La Masa 1, I-20156 Milan, Italy

[2] Univ Sci & Technol, Dept Mech Engn, Nguyen Luong Bang St, Danang, Vietnam

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 98卷

关键词：

Load directions; Non-nominal bearings; Tilting-pad journal bearing; Five pads; PERFORMANCE-CHARACTERISTICS; MANUFACTURING TOLERANCES; DYNAMIC CHARACTERISTICS; MECHANICAL SYSTEMS; STEADY-STATE; COEFFICIENTS; SENSITIVITY; STIFFNESS; ROTORS;

D O I：

10.1016/j.triboint.2016.02.028

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, a theoretical analysis of the influence of the load direction on the characteristics of a five pad tilting-pad journal bearing (TPJB) is investigated. An analysis is performed for a TPJB using a non nominal geometry, that is, with a different preload factor for each pad. The analytical results are then compared with the experimental measurements for a real bearing having pads with different geometries due to manufacturing errors. The results show that the load direction has considerable effects on both the static and dynamic characteristics of the TPJB. A robust estimation method is introduced for the calculation of experimental dynamic coefficients. The procedure for the bearing geometry estimation from the experimental measurement of the clearance profile is also described. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：197 / 211

页数：15

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