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- W2344862313 abstract "To solve the problem that gravity deformation curve of large-span cast-iron beam analyzed by finite element method simulation is inaccurate due to material imperfection, a discretization calculation considering the inhomogeneity of the material based on finite difference method is proposed. Supposing the flexural rigidity of the beam is different along the length, the continuous beam is discretized into segments based on finite difference method, and equivalent flexural rigidity is presented to characterize the inhomogeneity of the material. Correction model of bending deformation is constructed to revise the results of finite element method simulation applying equivalent flexural rigidity that could be obtained by combining the discretization model and deformation data acquired in a simple self-load experiment in which the beam is simply supported without any assembly process. Finally, flowchart of application is presented, and the approach is illustrated through an example from real case. The experimental results show that the computational accuracy is improved from 73.14% to 88.33%, compared with just finite element method simulation." @default.
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- W2344862313 date "2016-04-01" @default.
- W2344862313 modified "2023-09-28" @default.
- W2344862313 title "Finite difference method–based calculation of gravity deformation curve for the large-span beam of heavy-duty vertical lathe" @default.
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- W2344862313 doi "https://doi.org/10.1177/1687814016646072" @default.
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