PSI - Issue 6

A.M. Belostotsky et al. / Procedia Structural Integrity 6 (2017) 322–329 Author name / Structural Integrity Procedia 00 (2017) 000 – 000

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Table 2 The values of the aerodynamics moment coefficients C MZ and critical wind velocity V DIV from the angle α Angle α, ° C MZ V DIV , м/c 0 -0.005 24.04 1 -0.009 16.08 2 -0.024 15.04 3 -0.031 18.85 4 -0.038 15.99 5 -0.051 31.83 10 -0.053 75.89 15 -0.047 23.95 20 -0.009 72.04 25 -0.042 12.89 30 -0.161 17.45 35 -0.125 16.66 40 -0.070 19.69 45 -0.060 23.37 50 -0.024 29.84 55 -0.088 11.60 60 0.164 8.99 65 0.225 20.10 70 0.226 35.22 75 0.204 15.21 80 0.117 19.16 85 0.135 13.49 90 -0.022 8.97

2. Solving the problem in the coupled statement In the coupled statement [3], the parameters responsible for the aerodynamics component are identical to the basic aerodynamics calculations. As an exception the parameters of mesh deformation near the moving boundaries were set. The cross section is considered as a plane problem in a linear elastic formulation. The mathematical model is shown in Fig.4. Material parameters are presented in Table 3. The transition from the three-dimensional problem to the two-dimensional problem occurs due to elastic joints with linear damping. The parameters of these links are taken from [1] and are showed in Table 4. In the Ox direction, the geometric centre of the cross section is fixed. The twisting elastic connection was applied to the entire cross section on the average.