Method for calculating section torsional rigidity of large-opening structure of double-bubble fuselage
The invention belongs to the field of aviation structure design, and particularly relates to a double-bubble fuselage large-opening structure section torsional rigidity calculation method. Comprising the following steps: constructing a double-bubble fuselage large-opening structure analysis model; c...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention belongs to the field of aviation structure design, and particularly relates to a double-bubble fuselage large-opening structure section torsional rigidity calculation method. Comprising the following steps: constructing a double-bubble fuselage large-opening structure analysis model; calculating the fan-shaped area of the double-bubble fuselage large-opening structure analysis model; calculating the fan-shaped line static moment of the double-bubble fuselage large-opening structure analysis model; calculating a fan-shaped axis inertia moment of the double-bubble fuselage large-opening structure analysis model; according to the fan-shaped line static moment and the fan-shaped shaft inertia moment, calculating a bending center coordinate of the double-bubble fuselage large-opening structure analysis model; according to the bending center coordinates, calculating the main sector area of the double-bubble fuselage large opening structure analysis model; and calculating the section torsional rigidity |
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