LOAD ON OBJECT DERIVED FROM NATURAL-MODE SERIES MODELLING

摘要

The mechanical load on, for example, a rolling element bearing (102) is determined from the deformation sensed on a bearing ring (106) of the bearing. Computational efficiency is obtained by expressing the deformation as a first linear combination of natural-mode shapes of the bearing ring (106). A thermal load on the bearing ring is also expressed as a second linear combination of the same natural-mode shapes. Subtracting the second linear combination from the first linear combination enables to remove the thermally induced deformation from the sensed deformation.