Publication
CaracterizaĆ§Ć£o de Particulas de Desgaste do Rolamentos por Ferrografia e Ferrometria
| dc.contributor.advisor | Castro, Manuel Jorge Dores de | |
| dc.contributor.author | Pina, Victorino Mendes de | |
| dc.date.accessioned | 2015-12-14T11:39:12Z | |
| dc.date.available | 2015-12-14T11:39:12Z | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013 | |
| dc.description.abstract | Avarias em rolamentos sĆ£o causas comuns de falhas em mĆ”quinas e equipamentos industriais. Portanto, Ć© importante a aplicaĆ§Ć£o de tĆ©cnicas que permitam a deteĆ§Ć£o e a identificaĆ§Ć£o do problema o mais cedo possĆvel a fim de evitar a destruiĆ§Ć£o do rolamento e consequente paragem da mĆ”quina. Logo, o processo de monitorizaĆ§Ć£o do estado dos rolamentos deve receber uma atenĆ§Ć£o especial no plano de manutenĆ§Ć£o de qualquer indĆŗstria. Este trabalho tem, assim, como principal objetivo a caracterizaĆ§Ć£o das partĆculas de desgaste provenientes de rolamentos atravĆ©s da anĆ”lise dos seus lubrificantes por ferrometria e ferrografia analĆtica. Estas tĆ©cnicas permitem identificar e caracterizar as vĆ”rias partĆculas de desgaste presentes numa amostra de lubrificante, permitindo nĆ£o sĆ³ avaliar o grau de severidade do desgaste mas tambĆ©m identificar o tipo de desgaste predominante (fadiga, abrasĆ£o, corrosĆ£o,etc.), e atĆ© identificar os diferentes materiais das partĆculas que se podem associar a componentes especĆficos com falhas. A criaĆ§Ć£o de uma base de dados para armazenar os resultados, os comentĆ”rios e as informaƧƵes mais importantes obtidos nos ensaios experimentais, assim como a anĆ”lise de alguns casos prĆ”ticos, foram tambĆ©m realizados no Ć¢mbito deste trabalho. Para desenvolver um conhecimento mais profundo sobre as tĆ©cnicas utilizadas foi importante fazer uma anĆ”lise aos diversos tipos de rolamentos, a sua lubrificaĆ§Ć£o e as causas e tipos principais de avarias encontradas. | pt_PT |
| dc.description.abstract | Failures in rolling bearings are common causes of severe damages in machinery and industrial equipment. Therefore, it is necessary to apply techniques that allow detection and lidentification of the problem as soon as possible in order to avoid destruction of the bearing and thereby shutdown of the machine. So, the rolling bearing condition monitoring should receive special attention in the maintenance plan of any industry. The main objective of this work was the characterization of wear particles from rolling bearings by lubricant analysis and more specifically by ferrometry and analytical ferrography. These techniques allow to identify and characterize the various wear particles present in a sample of lubricant , allowing not only to assess the severity of wear or damage but also to identify the type of predominant wear (fatigue , abrasion , corrosion etc. ) and to identify different materials that can be associated with specific components failed . The creation of a database to store the results, and reviews of the most important information obtained from the experimental tests as well as the analysis of some case studies were also carried out in this work. To understand the lubricant analysis techniques it was important to analyze several types of bearings, their lubrication and the causes and major types of failures found in rolling bearings. | pt_PT |
| dc.identifier.tid | 201814587 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/7184 | |
| dc.language.iso | por | pt_PT |
| dc.subject | Bearings | pt_PT |
| dc.subject | Direct Reading Ferrograph | pt_PT |
| dc.subject | Analytical Ferrograph | pt_PT |
| dc.subject | Wear Particles | pt_PT |
| dc.subject | Failure analysis | pt_PT |
| dc.subject | Rolamentos | pt_PT |
| dc.subject | Ferrografia de Leitura Direta | pt_PT |
| dc.subject | Ferrografia AnalĆtica | pt_PT |
| dc.subject | AnƔlise de Avarias | pt_PT |
| dc.subject | PartĆculas de Desgaste | pt_PT |
| dc.title | CaracterizaĆ§Ć£o de Particulas de Desgaste do Rolamentos por Ferrografia e Ferrometria | pt_PT |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | masterThesis | pt_PT |
| thesis.degree.name | Mestrado em Engenharia MecĆ¢nica | pt_PT |