Research Article
Analysis of Critical Velocities for an Infinite Timoshenko Beam Resting on an Elastic Foundation Subjected to a Harmonic Moving Load
Figure 4
Critical velocity varies with loading frequency for N/m2.
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(a) Critical velocity versus loading frequency , in which , , as shown in Figure 4(b) |
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(b) The phase velocity and group velocity of naturally propagating waves versus wave number , , m/s |
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