Passive balancing of a rotating mechanical system using genetic algorithm

The main objective of this study is to perform the passive balancing of a rotating mechanicalsystem having multi-discs. reducing the bearing vibrations is considered an optimization problem, andthe genetic algorithm (ga) approach is used for solving it under the appropriate constraints. therefore,bearing amplitudes are formulated as an objective function, and the eccentricity directions of 2nd, 3rd, . . . ,nth discs are defined as design variables relative to the first one. the conditions making the forces at thebearings minimum are taken as the nonlinear constraints in the optimization process. on the other hand,a rotating mechanical system having three unbalanced discs is evaluated as a numerical example to showthe effectiveness of the proposed approach. commercial software, adams, is also used for simulating thesystem and testing the accuracy of the obtained values for the design variables. theoretical and simulationresults show that the proposed approach gives a certain decrease in bearing amplitudes and forces.