Open AccessDegree and nature of shaft misalignments in pumping units assessed against vibration criteria
Author(s) -
R. N. Suleymanov,
О. В. Филимонов
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/952/1/012071
Subject(s) - vibration , harmonics , degree (music) , measure (data warehouse) , structural engineering , acoustics , physics , computer science , engineering , electrical engineering , voltage , database
The paper shows that the degree and type of shaft misalignments, along with imbalances, have a decisive impact on vibration levels in centrifugal pumps. An accurate assessment is impossible without a unit shutdown to measure shaft alignments with special devices. A method for determining misalignments is proposed to assess the degree of misalignment against vibration spectra, the so-called rotational harmonics.