Topology optimization design method for novel down-the-hole arc-shaped hydraulic steel gate

Abstract

The invention discloses a design method based on topology optimization for a novel down-the-hole arc-shaped hydraulic steel gate. The design method comprises the steps of: design of support arms: determining the position of the center of the main support arm relative to vertical symmetric surfaces of a water retaining surfacedeck; topology optimization: to obtain the layout of vertical ribs in a support framework; determination of a new design area and topology optimization to obtain the layout of horizontal ribs in the support framework; construction of the overall structure of the down-the-hole steel gate, and dimensional optimization; and safety check of the structure under other conditions. On the premises of satisfying force-bearing requirements and reducing the dead weight of the structure, the optimal topology of the structural layout can be realized. Large-size two / three-dimensional design of the structure can be performed while actual engineering conditions are satisfied, and the spatial layout is reasonable. Compared with the traditional design, the designed novel gate has the advantages of low material consumption and light dead weight.

Description

technical field [0001] The invention relates to an optimal design method of a gate in a water conservancy project, and more specifically relates to a topology optimal design method for a novel submerged-hole type arc-shaped hydraulic steel gate. Background technique [0002] Compared with flat steel gates, arc steel gates are labor-saving in opening and closing, reliable in operation, convenient in operation, and have good discharge conditions. With the development of water conservancy and hydropower construction, arc steel gates have been widely used. [0003] According to the depth of the water level above the top of the gate, arc steel gates are divided into open-top type and submerged-hole type. At present, the design of submersible-type arc-shaped gates is implemented according to the combination of early design specifications and experience. The primary gate structure is designed according to the actual engineering conditions and the designer's experience, and then the...

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Problems solved by technology

[0005] For most projects, the traditional design steps still rely on the traditional planar system theory as the basis for design calculations. The designed submerged arc steel gate structure is relatively large, resulting in waste of resources and high safety margins. The structure is relatively large. , heavy weight, high resource consumption

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