Model Order Reduction of a Human Body Vibration Model

Biomechanical models of the human body are generally complex, and models of its behavior require writing and solving many differential equations. Instead of this time-consuming process, it is considered a more practical process to install smaller models that preserve the main behaviors of the system. In this study, instead of the human body model proposed by ISO 7962, a smaller model with an analytical solution has been proposed. While performing the desired model reduction, genetic algorithms were used and the parameters of the new system that replicated the behavior of the original system were created. Then, the behaviors of both the original system and the reduced-order system were compared graphically. Comparisons have shown that this small model can also be used in calculations and that very good results can be achieved on points such as low-frequency resonances.