<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A common problem with hydraulic turbines is the rupture of turbine horizontal shaft in the area between the rotor and its bearing, caused by different stresses [1], as well as problems caused by excessive bearing wear, vibration caused by instability of lubricant film from bearings, lubrication supply interruption of hydrodynamic bearings, gripping, decrease of bearing stiffness due to fatigue of supporting structures. In addition, during operation, vibration appear depending on exciter forces or bearing type. In present paper we present an analysis of vibrations measured on a subassembly found at hydraulic turbines. For the experimental subassembly was used a straight-lined shaft, having variable cross-section, and a sliding type bearing. The tests were made for bearings of different dimensions and materials. Vibrations were measured on two axes for established case studies and results were compared.</p></abstract>

A common problem with hydraulic turbines is the rupture of turbine horizontal shaft in the area between the rotor and its bearing, caused by different stresses [1], as well as problems caused by excessive bearing wear, vibration caused by instability of lubricant film from bearings, lubrication supply interruption of hydrodynamic bearings, gripping, decrease of bearing stiffness due to fatigue of supporting structures. In addition, during operation, vibration appear depending on exciter forces or bearing type. In present paper we present an analysis of vibrations measured on a subassembly found at hydraulic turbines. For the experimental subassembly was used a straight-lined shaft, having variable cross-section, and a sliding type bearing. The tests were made for bearings of different dimensions and materials. Vibrations were measured on two axes for established case studies and results were compared.

Vibration Study for a Subassembly – Part of Hydraulic Turbines

International conference KNOWLEDGE-BASED ORGANIZATION

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Vibration Study for a Subassembly \u2013 Part of Hydraulic Turbines"}

A common problem with hydraulic turbines is the rupture of turbine horizontal shaft in the area between the rotor and its bearing, caused by different stresses...

Vibration Study for a Subassembly – Part of Hydraulic Turbines

Published Online: Jul 23, 2019

Page range: 97 - 102

DOI: https://doi.org/10.2478/kbo-2019-0124

Keywords
vibration, bearing, deva.tex, stresses, hydraulic turbines

© 2019 Cornel Haţiegan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Vibration Study for a Subassembly – Part of Hydraulic Turbines

Published Online: Jul 23, 2019

Page range: 97 - 102

DOI: https://doi.org/10.2478/kbo-2019-0124

Keywordsvibration, bearing, deva.tex, stresses, hydraulic turbines

© 2019 Cornel Haţiegan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
vibration, bearing, deva.tex, stresses, hydraulic turbines