A parametric model to identify hydrodynamic bearing wear at a single rotating speed

Autor(es)

Alves, Diogo Stuani ^[1] ; Fieux, Gauthier ^[2] ; Machado, Tiago Henrique ^[1] ; Keogh, Patrick S. ^[2] ; Cavalca, Katia Lucchesi ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Lab Rotating Machinery, Fac Mechan Engn, 200 Rua Mendeleyev, BR-13083860 Campinas, SP - Brazil

^[2] Univ Bath, Dept Mech Engn, Bath BA2 7AY, Avon - England

• Tipo de documento: Artigo Científico
• Fonte: TRIBOLOGY INTERNATIONAL; v. 153, JAN 2021.
• Citações Web of Science: 4

Resumo

For dynamic systems, fault detection and diagnosis involve the observation of vibration signals. Faults associated with hydrodynamic bearings are one of the most common causes of forced shutdowns in rotating machinery. If it is a wear fault, the bearing clearance is affected changing the rotating system characteristics. Therefore, the time response of a rotating machine subjected to worn hydrodynamic bearings is analysed to observe the vibration behaviour in presence of bearing wear. Spectral analysis is used to understand intact and worn bearing characteristics and to identify wear severity. For the wear, an improved and new parametric model is generated to increase simulation accuracy. The new approach indicates the severity of wear in the studied hydrodynamic bearings. (AU)

• Processo FAPESP: 18/24600-0 - Avaliação experimental de um modelo de falha para desgaste em mancais hidrodinâmicos
• Beneficiário: Diogo Stuani Alves
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 15/20363-6 - Identificação e controle tolerantes a falhas em sistemas rotativos
• Beneficiário: Katia Lucchesi Cavalca Dedini
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/21581-5 - Avaliação experimental de um modelo de falha por desgaste em mancais hidrodinâmicos
• Beneficiário: Diogo Stuani Alves
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado