Abstract
The paper presents the results of numerical investigation of forced and damped vibrations of a mechanical system with a bilinear restoring force, which simulates a closing crack. Among the vibration characteristics studied, the most damage-sensitive ones are the level of nonlinear distortions and relative amplitudes of the displacement, velocity, and acceleration waves in super- and subresonance vibrations. At the same time, these characteristics are shown to depend substantially on the level of vibration damping in the system.
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Bovsunovskii, A.P. Vibrations of a Nonlinear Mechanical System Simulating a Cracked Body. Strength of Materials 33, 370–379 (2001). https://doi.org/10.1023/A:1012464728748
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DOI: https://doi.org/10.1023/A:1012464728748