A design method for a plate with holes
A flat plate and perforated technology, applied in computer-aided design, calculation, instrument, etc., can solve the problems of low design efficiency and long design cycle of plate with holes, and achieve the effect of solving the long design cycle.
Active Publication Date: 2020-05-19
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0005] In order to solve the problems of long design period and low design efficiency of the existing plate with holes, the embodiment of the present invention provides a design method of plate with holes
Method used
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Embodiment Construction
[0044] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0045] figure 1 It is a flow chart of a method for designing a plate with holes provided by an embodiment of the present invention, such as figure 1 As shown, the method includes:
[0046] S11: Construct an initial geometric model of the flat plate, and the initial geometric model has an initial circular hole.
[0047] S12: Generate a geometric mid-surface model of the plate according to the initialized geometric model.
[0048] S13: Using the finite element method to discretize the surface model in the geometry to obtain a grid model.
[0049] S14: Obtain the number of arcs into which the initial circular hole is divided.
[0050] S15: Obtain material properties and material thickness.
[0051] S16: Obtain the boundary conditions...
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The invention discloses a method for designing a flat plate with holes and belongs to the technical field of mechanical structure design. The method comprises the following steps: constructing an initialized geometrical model of the flat plate; generating a geometrical middle plane model according to the initialized geometrical model; adopting a finite element method for dispersing the geometrical middle plane model, thereby acquiring a grid model; acquiring a quantity value of the arcs which are formed by cutting an initial circular hole, acquiring material attribute and material thickness, acquiring a boundary condition of the flat plate and acquiring optimal design variable and optimization target, thereby acquiring a shape optimizing model; solving the shape optimizing model; optimizing by acquiring the quantity value of the arcs which are formed by cutting the initial circular hole and acquiring the boundary condition, the optimal design variable, the optimizing constraint condition and the optimization target; continuously adjusting the radius and position of each arc which is formed by cutting the initial circular hole in an optimizing process; and lastly, confirming the shape and position of an optimal hole meeting the optimizing constraint condition and the optimization target, thereby acquiring an optimal shape model.
Description
technical field [0001] The invention relates to the technical field of mechanical structure design, in particular to a design method of a flat plate with holes. Background technique [0002] The plate structure with holes can be seen in various mechanical equipment. The plate with holes is often used to support the rotating shaft, support various beams, or achieve the purpose of reducing weight by opening holes in the plate. [0003] After the holes are made on the board, there will be a lot of stress near the holes during actual work, which may cause local material yield on the board, thereby affecting the normal operation of the entire device, so the design of the board with holes is very important. When designing the existing flat plate with holes, the initial geometric model of the flat plate is usually established based on experience or by analogy to the flat plate with holes in equipment with similar structures, and then the structural performance of the initial geomet...
Claims
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IPC IPC(8): G06F30/17G06F119/14
CPCG06F30/17G06F2119/06
Inventor 付世欣覃刚王强樊佳
Owner WUHAN MARINE MACHINERY PLANT