ODS, then, is the more complex goal of FINE TUNE !
As a musical instrument needs to be tuned appropriately before the musician may play it, a machine and its structure need to be adjusted to our needs before entering service or when it evolves beyond the best desirable parameters ; an instrument goes out of tune, and a machine accumulates fatigue, confronts varying process demands and generally ages WHEN it has been installed properly from the outset, a condition which is unfortunately not that common !
Failing this process of adjustment, a machine no longer is capable of delivering top notch performance. It degrades ! Energy gets wasted, often in the form of unproductive vibration instead of supplying necessary work !
The adjustment process calls for various techniques enabling the engineer to recalibrate both machine and structure in such a way as to optimize production performance. These techniques, a series of tools encompassing the varied ammunition of the vibration engineer’s arsenal, go from the simplest, such as balancing or vibration spectral analysis, to progressively more complex forms of dealing with the problem : time domain analysis, synchronous time waveform averaging, phase analysis, Operating Deflective Shape Analysis and finally, all the 2-channel instrument’s complex functions !
Complex Functions