MULTI-CHANNEL ACTIVE CONTROL SYSTEM AND METHOD FOR THE REDUCTION OF TONAL NOISE FROM AN AXIAL FAN

摘要

A method of optimizing placement of a control source relative to a noise source includes establishing a first pool of constructive chromosomes, each constructive chromosome defining a potential spatial position for the control source in an acoustic space and each constructive chromosome including a plurality of constructive genes having a value-based value that represents an ordinate related to the potential spatial position. A second pool of constructive chromosomes is established by manipulating the value-based values of constructive genes from at least a portion of the plurality of constructive chromosomes of the first pool to create a plurality of modified constructive chromosomes, and evaluating a fitness characteristic of at least some of the constructive chromosomes from the first pool and/or at least some of the constructive chromosomes from the second pool. A portion of the constructive chromosomes are eliminated from the first and/or second pools based on the fitness characteristic.