The invention belongs to the technical field of aircraft structure design, and particularly relates to a method for determining the layout of a flat plate structure under the action of a pure bending load. The method comprises the following steps: building a relational expression s between an edge strip axial pressure load and an edge strip cross section area based on the maximum working stress of a flat plate panel; establishing a relational expression w between the cross-sectional area of the edge strip and the inertia moment of the edge strip; establishing a relational expression v of the edge strip axial load, the edge strip inertia moment and the number of edge strip segments parallel to the width of the flat plate; establishing a relational expression z between the pure bending allowable stress of the flat plate and the number of the edge strip segments perpendicular to the width of the flat plate; setting the value of the ratio of the edge strip segmentation distance perpendicular to the width of the flat plate to the edge strip segmentation distance parallel to the width of the flat plate, and making the pure bending allowable stress of the flat plate to be equal to the maximum working stress of the flat plate; and obtaining the result by combining several pairs. The edge strip is more accurately set by accurately calculating the position of the edge strip and the specification of the edge strip, the large design error of the edge strip is avoided, and universality is achieved.
本申请属于涉及飞机结构设计技术领域,特别是涉及一种确定平板结构在纯弯曲载荷作用下的布局方法,该方法包括基于所述平板面板最大工作应力建立缘条轴压载荷与缘条截面面积的关系式s;建立所述缘条截面面积与缘条惯性矩的关系式w;建立所述缘条轴压载荷、所述缘条惯性矩与平行于平板宽度的缘条分段个数的关系式v;建立平板纯弯曲许用应力与垂直于平板宽度的缘条分段个数的关系式z;设定所述垂直于平板宽度的缘条分段距离与所述平行于平板宽度的缘条分段距离之比的值、令所述平板纯弯曲许用应力等于所述平板面板最大工作应力;联合几双得出结果,通过精确计算处缘条的位置与缘条的规格,更准确设定缘条,避免缘条的设计误差大,且具有通用性。
Method for determining layout of flat plate structure under action of pure bending load
一种确定平板结构在纯弯曲载荷作用下的布局方法
2022-01-25
Patent
Elektronische Ressource
Chinesisch
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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