Undercarriage fatigue stress calculation method, system and equipment and storage medium
The invention discloses an undercarriage fatigue stress calculation method, system and device and a storage medium. The undercarriage fatigue stress calculation method comprises the steps that an undercarriage finite element calculation model and an undercarriage beam model are constructed; construc...
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| creator | ZHOU ZHENGWANG JIANG JIANWEN HUANG BANG LOU RUI DUAN HENG LU DEFA YU HAOWEN YANG LE YUAN TING ZHE SHIQIANG LAN XIAO |
| description | The invention discloses an undercarriage fatigue stress calculation method, system and device and a storage medium. The undercarriage fatigue stress calculation method comprises the steps that an undercarriage finite element calculation model and an undercarriage beam model are constructed; constructing an axle center fatigue load spectrum; distributing the axle center fatigue load spectrum into an airplane wheel center load spectrum; the node force of each part of the undercarriage under the axle center fatigue load spectrum is obtained; the undercarriage parts are divided into two types, one type belongs to a two-force rod, and the other type belongs to a local statically indeterminate structure; calculating the stress value of the two-force rod under each fatigue working condition based on the pulling and pressing unit load; and calculating a stress value of the local statically indeterminate structure under each fatigue working condition based on a stress superposition principle. Compared with traditional |
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The undercarriage fatigue stress calculation method comprises the steps that an undercarriage finite element calculation model and an undercarriage beam model are constructed; constructing an axle center fatigue load spectrum; distributing the axle center fatigue load spectrum into an airplane wheel center load spectrum; the node force of each part of the undercarriage under the axle center fatigue load spectrum is obtained; the undercarriage parts are divided into two types, one type belongs to a two-force rod, and the other type belongs to a local statically indeterminate structure; calculating the stress value of the two-force rod under each fatigue working condition based on the pulling and pressing unit load; and calculating a stress value of the local statically indeterminate structure under each fatigue working condition based on a stress superposition principle. 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The undercarriage fatigue stress calculation method comprises the steps that an undercarriage finite element calculation model and an undercarriage beam model are constructed; constructing an axle center fatigue load spectrum; distributing the axle center fatigue load spectrum into an airplane wheel center load spectrum; the node force of each part of the undercarriage under the axle center fatigue load spectrum is obtained; the undercarriage parts are divided into two types, one type belongs to a two-force rod, and the other type belongs to a local statically indeterminate structure; calculating the stress value of the two-force rod under each fatigue working condition based on the pulling and pressing unit load; and calculating a stress value of the local statically indeterminate structure under each fatigue working condition based on a stress superposition principle. 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The undercarriage fatigue stress calculation method comprises the steps that an undercarriage finite element calculation model and an undercarriage beam model are constructed; constructing an axle center fatigue load spectrum; distributing the axle center fatigue load spectrum into an airplane wheel center load spectrum; the node force of each part of the undercarriage under the axle center fatigue load spectrum is obtained; the undercarriage parts are divided into two types, one type belongs to a two-force rod, and the other type belongs to a local statically indeterminate structure; calculating the stress value of the two-force rod under each fatigue working condition based on the pulling and pressing unit load; and calculating a stress value of the local statically indeterminate structure under each fatigue working condition based on a stress superposition principle. Compared with traditional</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | Undercarriage fatigue stress calculation method, system and equipment and storage medium |
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