GE is the signature brand in High technology products and is the un-disputed leader in manufacturing large electrical generating machines. The case in consideration is a huge first time ever indigenously built 660MW AC Generator which was to be qualified for its Eigenvalue performance like Resonance & Mode shapes of the Stator Frame.
Running a full-size Experimental Modal Testing on a built-up body-in-white is a test engineers dream and as well a challenge. Working closely with the customer, our specialist team conducted all pre-requisite tests of linearity, reciprocity, driving point validations and further gathered all the FRF from around 120+ locations on the stator frame. Detailed processing to extract MODAL parameters were done using industry standard Modal tools; the results and presentation were much impressing that customer accepted the technical report with minimum queries.