A system for calculating an internal load of a component includes an acceleration module, a skew matrix module, a center of gravity calculation module, a mass/inertia module, and an internal load module. The acceleration module may obtain a plurality of acceleration measurements associated with a component, where each acceleration measurement is associated with a response point relative to a center of gravity of the component. The skew matrix module may determine a skew matrix based on the response points. The center of gravity calculation module may calculate a center of gravity response for the component based on the plurality of acceleration measurements and the skew matrix. The mass/inertia module may determine a mass/inertia matrix based on measured mass and inertia values associated with the component. The internal load module may calculate an internal load of the component based on the calculated center of gravity response and the mass/inertia matrix.