ALEXANDRIA, Va., July 7 -- United States Patent no. 12,675,092, issued on July 7.
"Frequency domain work analysis of machinery including turbomachinery" was invented by J. Michael Shifflette (Alachua, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Machine performance, including efficiency, is analyzed in direct frequency domain by measuring the input power to the machine over a range of machine speeds (frequencies, Omega). A differentiable mathematical function or model is identified that characterizes the input power vs. speed functional relationship. Successive derivatives of experimental power vs. speed data enable the calculation of coefficients of the mathematical function at a plurality of points ...