TY - JOUR N2 - The article presents results of comparative tests performed to verify the conformity of geometric deviation measurements of a crankshaft carried out at a test bed equipped with a system of elastic support with measurements adopted as reference values. A number of simulation tests were carried out with varied shaft support conditions using the proposed measuring system. The selection criteria were established for support parameters. Meeting these criteria guarantees that shaft elastic deflections and strains are eliminated. Consequently, such strains will not affect the estimation of geometrical deviations of the measured object. The comparative evaluation measurement of roundness profiles and values of roundness deviations of main crankshaft bearing journals of a marine medium speed engine was performed using a correlation calculus. The results have revealed high conformity of both determined roundness deviation values and measured profiles compared to the reference ones. L1 - http://journals.pan.pl/Content/90220/PDF/Journal10178-VolumeXXI%20Issue1_07.pdf L2 - http://journals.pan.pl/Content/90220 PY - 2014 IS - No 1 EP - 76 DO - 10.2478/mms-2014-0007 KW - comparative tests KW - reference measurements KW - roundness profiles KW - crankshafts KW - correlation calculus A1 - Nozdrzykowski, Krzysztof A1 - Janecki, Dariusz PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation DA - 2014 T1 - COMPARATIVE STUDIES OF REFERENCE MEASUREMENTS OF CYLINDRICAL SURFACE ROUNDNESS PROFILES OF LARGE MACHINE COMPONENTS SP - 67 UR - http://journals.pan.pl/dlibra/publication/edition/90220 T2 - Metrology and Measurement Systems ER -