1. A computer-implemented method for simulating a modal frequency response of a real-world object, said computer-implemented method comprising: obtaining a set of excitation frequencies; dividing the set of excitation frequencies into a plurality of excitation frequency subsets, each excitation frequency subset comprising a plurality of excitation frequencies; calculating modal frequency responses for at least a portion of the excitation frequencies in two or more of the plurality of the excitation frequency subsets that result from said dividing; and generating a simulation of the real-world object based at least in part on the calculated modal frequency responses.