Abstract
An improved analytical model based on the multiphase flow theory of gas-particle is developed to evaluate the characteristics of particle damping, in which the equivalent viscous damping for inter-particle frictions is introduced instead of the Coulomb friction damping based on Hertz contact theory in original model. A uniform expression of the equivalent viscous damping coefficient due to the inter-particle collisions and frictions is formulated. The free vibration of a cantilever particle-damping beam (equivalent SDOF system) and the forced vibration of a SDOF system with particle damping are predicted, and the validity of the present model is examined by comparisons with the experiments or DEM simulations in the corresponding literatures. Good correlations are obtained between the analytical results and the experimental data or DEM results.
| Original language | English |
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| Pages | 3305-3312 |
| Number of pages | 8 |
| State | Published - 2013 |
| Event | 20th International Congress on Sound and Vibration 2013, ICSV 2013 - Bangkok, Thailand Duration: 7 Jul 2013 → 11 Jul 2013 |
Conference
| Conference | 20th International Congress on Sound and Vibration 2013, ICSV 2013 |
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| Country/Territory | Thailand |
| City | Bangkok |
| Period | 7/07/13 → 11/07/13 |