Lubricant quality control: A chemometric approach to assess wear engine in heavy machines

RODOLFO FRANCISCO LARA; SILVANA MARIELA AZCARATE; MIGUEL ÁNGEL CANTARELLI; IVANA MARCELA OROZCO; MARÍA EUGENIA CAROPRESE; MARIANELA SAVIO; JOSÉ MANUEL CAMIÑA

TRIBOLOGY INTERNATIONAL

ELSEVIER SCI LTD

Lugar: Amsterdam; Año: 2015 vol. 86 p. 36 - 41

0301-679X

Used lubricants assessment could be suitable to reveal wear mechanis msundergoing in a machine.In the proposed work an effective, reliable and cost-efficient technique combining inductively coupled plasma optical emission spectrometry(ICP OES)and chemometrics was developed to perform wear analysis for industrial application.Thus, multielemental determination of a large amount of used lubricants from diesel heavy machines(truck,bulldozer,loadersandbackhoe)was carried out by ICP-OES.Multivariate analysis was done by thenon supervised method principal component analysis (PCA) and supervised method sequential discriminant analysis(SDA).There cognitionability for the groups was highly satisfactory.For PCA,themain three principal components explained 99.98% of total variance for samples lubricants. SDA allowed,in training and prediction sets,a correct classification of 97.12% and 95.75% respectively for the lubricant analyzed samples,obtaining three groups classified according totheuse.The outcomes demonstrate that lubricant wear effect could be assessed quickly and accurately,having great potential to be comeavery useful tool in the machine monitoring industry.