A Non-probabilistic Topology Optimization Method for Continuum Structures Based on Bounded Uncertainty
A topology optimization and uncertainty technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as few results, and achieve the effect of improving performance, reducing design cycle and economic cost, and reducing structural weight
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[0112] In order to understand more fully the characteristics of the invention and its applicability to engineering practice, the present invention aims at such as Image 6 The shown rectangular slab was designed for topology optimization. The design area is a rectangular area of 1.4m×0.3m, with a thickness of 0.001m, divided into 140×30 units. Material elastic modulus E=100Mpa, Poisson's ratio μ=0.3. The left and right sides of the rectangular area are fixed, applying P 1 =P 3 =2.5N,P 2 =3N Three vertical downward forces, regardless of the influence of gravity, constrain the displacement of the three loading points, so that u 1 1 1 1 =[2.25,2.75]N,P 2 =[2.7,3.3]N,P 3 =[2.25,2.75]N; set displacement constraint u 1 , u 2 , u 3 There is a 1% fluctuation relative to the nominal value, i.e. u 1 =[0.72,0.88]mm, u 2 =[1.35,1.45]mm, u 1 =[0.72,0.88]mm.
[0113] Figure 7 The results of deterministic topology optimization and the comparison of topology optimization resu...
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