Systems and methods are provided for simulating high-cycle fatigue of a rotating component. A first three-dimensional geometric representation of a rotating component is received, where the first three-dimensional geometric representation is indicative of the rotating component during operation. A three-dimensional fluid flow metric is computed at points of the first three-dimensional geometric representation and stored in a first data structure. A second three-dimensional geometric representation of the rotating component is received, where the second three-dimensional geometric representation is indicative of the rotating component in a still configuration. A static metric is computed at points of the second three-dimensional geometric representation and stored in a second data structure. A combined data structure is populated based on the three-dimensional fluid flow metric from the first data structure and the static metric from the second data structure. A forced response solution of the rotating component is computed using the combined data structure.