274 I. Boulkaibet et al. Table 26.4 Modal results and errors for S2HMC and HMC at two different time steps Mode Measured frequency (Hz) Initial FEM frequencies (Hz) Error (%) Frequencies HMC method (Hz) (•t D3ms) Error (%) Frequencies S2HMC method (Hz) (•t D3ms) Error (%) Frequencies S2HMC method (Hz) (•t D4.8ms) Error (%) 1 6.38 5.71 10.47 06.135 3.84 06.142 3.74 06.1534 3.55 2 16.10 15.29 5.01 16.482 2.37 16.482 2.37 16.4222 2.00 3 33.13 32.53 1.82 32.955 0.53 33.306 0.73 32.8793 0.76 4 33.53 34.95 4.23 33.716 0.55 33.530 0.000 33.535 0.015 5 35.65 35.65 0.0117 35.702 0.15 35.693 0.12 35.5769 0.21 6 48.38 45.14 6.69 47.351 2.13 47.519 1.78 47.8262 1.15 7 49.43 54.69 10.65 51.638 4.47 51.710 4.61 51.8290 4.85 8 55.08 55.60 0.94 54.841 0.43 54.974 0.19 55.0520 0.05 9 63.04 60.15 4.59 62.823 0.35 63.015 0.04 63.1771 0.22 10 66.52 67.56 1.57 67.458 1.41 67.467 1.42 67.4765 1.44 Total errors _________ __________ 45.99 __________ 16.21 ___________ 15.00 _________ 14.2353
RkJQdWJsaXNoZXIy MTMzNzEzMQ==