Radial Subsynchronous Vibration (SSV) induced by Axial Vibration

Renner Guilherme da Costa Marques¹; Hans Ingo Weber¹; Leonardo Ishimoto²

¹ PUC-RJ; ² Petrobras

doi:10.20906/CPS/COB-2015-0500

Resumo

The paper presents a presence of subsynchronous radial vibration during mechanical running tests of High Pressure Compressor following API 617-7th ed. requirement. During the tests it was investigated how was the lateral vibration behavior while the rotor speed, oil pressure and flow to thrust bearing, load and torque were varied. After some tests, vibration analysis and literature revised, it was concluded that the main cause of radial subsynchronous vibration was due to axial subsynchronous vibration of rotor.

Palavras-chave: compressor; subsynchronous vibration; mechanical running test