Abstract
The motion stability of a composite and soft-cored compressible sandwich beam was investigated, which is different from the traditional incompressible sandwich beam. The direct multiscale method was applied to the analysis process of an axially moving sandwich beam with time-dependent velocity, then the natural frequency and solvability conditions were obtained. Based on the conditions, the stability boundaries of subharmonic resonance and combination resonance were obtained. The numerical examples were presented to show the effect of mean velocity and the ratio of the elastic modulus to shear modulus on the stability boundaries, and the difference between the compressible sandwich beam and the ordinary incompressible beam was compared.
| Translated title of the contribution | Direct multiscale analysis of the stability of an axially moving compressible sandwich beam with time-dependent velocity |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 40-44 |
| Number of pages | 5 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 38 |
| Issue number | 4 |
| DOIs | |
| State | Published - 28 Feb 2019 |
| Externally published | Yes |
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