Stresses induced by random loading
AssigneeAirbus Operations GmbH
InventorHoi YIU
Life of this patent
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Abstract
A computer-implemented method of modelling a root-mean-square stress in a structure induced by a random load. The method comprises determining a modal correction factor based on data representing the eigensolution for the structure in free vibration. The modal correction factor characterises the proportion of the random load, which is attributable to the root-mean-square response of the structure. Once the modal correction factor has been calculated, it is applied to data representing a stress in the structure due to a forced vibration to thereby determine the root-mean-square stress induced by the random load.
Claims20
A computer-implemented method of modelling a root-mean-square stress in a structure induced by a random load, the method comprising:
- determining a modal correction factor based on data representing the eigensolution for the structure in free vibration, the modal correction factor characterising the proportion of the random load which is attributable to the root-mean-square response of the structure;
- and
- applying the modal correction factor to data representing a stress in the structure due to a forced vibration to thereby determine the root-mean-square stress induced by the random load.
A computer program product comprising a non-transitory computer-readable storage medium having computer readable instructions stored thereon, the computer readable instructions being executable by a computerised device to cause the computerised device to perform a method of modelling a root-mean-square stress in a structure induced by a random load, the method comprising:
- determining a modal correction factor based on data representing the eigensolution for the structure in free vibration, the modal correction factor characterising the proportion of the random load which is attributable to the root-mean-square response of the structure;
- and
- applying the modal correction factor to data representing a stress in the structure due to a forced vibration to thereby determine the root-mean-square stress induced by the random load.
A computer apparatus for modelling a root-mean-square stress in a structure induced by a random load, the apparatus comprising a processor configured to:
- determine a modal correction factor based on data representing the eigensolution for the structure in free vibration, the modal correction factor characterising the proportion of the random load which is attributable to the root-mean-square response of the structure;
- and
- apply the modal correction factor to data representing a stress in the structure due to a forced vibration to thereby determine the root-mean-square stress induced by the random load.
-21. (canceled)
Dependencies are inferred from the claim text.