deformation computation
1.Using the unsteady aerodynamics step responses due to the structural deformation calculated by CFD(computation fluid dynamics) technique,the Volterra kernels are determined,and the generalized unsteady AIC(aerodynamics influence coefficients) in frequency-domain are obtained.
3.The mode of the seepage deformation evolution is illuminated by means of theoretical analysis and numerical computation.
4.ANALYSIS COMPUTATION ON MATERIAL NONLINEAR AND LARGE DEFORMATION OF FILAMENT WOUND CASE
6.In this paper,the isoparametric quadrilateral elements are used in EPIC-2,the hourglass deformation in the quadrilateral element is analyzed,and then the hourglass modes are controled in the computation of large elastic plastic deformation by introducing the hourglass strains and the corresponding stresses.
7.Results of the computation along the whole span of SRC beam showed that the values of mid-span moment, strain and deformation are maximum, while the mid-span slip value is minimum.
8.Based on the anti-seismic standards and stability evaluation criteria of high arch dams, the current calculation methods for high arch dams are systematically summarized, which include the rigid body limit equilibrium method, method combing rigid body limit equilibrium and finite element, discontinuous deformation analysis method (DDA), numerical manifold method, interface element method, FE-BE-IBE coupled method, stochastic finite element method, artificial transmitting boundary and explicit FEM, parallel computation and modeling test.
9.Based on the test data of air chamber pushrod force-stroke, a computation model a bout air chamber pushrod force-stroke was established, and calculation formula of actuation deformation characteristics of the drum brake was proposed according to test data.
10.In this paper, the optimum computation method of the slant deformation of a shaft and its evaluating accuracy are investigated according to the difference of observed directional values of each period and by using the indirect adjustment principle to establish the error equation.
