Optimization of the impact multi-mass vibration absorbers
| Autor: | Orest Horbaj, Bohdan Diveyev, Marta Kopytko, Ivan Kernytskyy, Mykhajlo Hlobchak, Oleh Zachek |
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| Rok vydání: | 2017 |
| Předmět: |
energy dissipatio
Materials science Boltzman approximation Acoustics frequency characteristics Building and Construction dynamic vibration absorber (DVA) Engineering (General). Civil engineering (General) Geotechnical Engineering and Engineering Geology Environmental technology. Sanitary engineering impact damping system genetic algorithms Vibration DVA optimization multi-mass DVA results of DVA’s application TA1-2040 TD1-1066 simultaneous optimization Earth-Surface Processes General Environmental Science Civil and Structural Engineering |
| Zdroj: | Przegląd Naukowy Inżynieria i Kształtowanie Środowiska, Vol 26, Iss 3, Pp 394-400 (2017) |
| ISSN: | 2543-7496 1732-9353 |
| Popis: | The problem of attaching dynamic vibration absorber (DVA) to a discrete multi-degree-of-freedom or continuous structure has been outlined in many papers and monographs. An impact damping system can overcome some limitations by impact as the damping medium and impact mass interaction as the damping mechanism. The paper contemplates the provision of DVA with the several of the impact masses. Such originally designed absorbers reduce vibration selectively in maximum vibration mode without introducing vibration in other modes. An impact damper is a passive control device which takes the form of a freely moving mass, constrained by stops attached to the structure under control, i.e. the primary structure. The damping results from the exchange of momentum during impacts between the mass and the stops as the structure vibrates. The paper contemplates the provision of the impact multi-mass DVA’s with masses collisions for additional damping. For some cases of DVA optimization such a design seems more effective than conventional multi-mass DVA with independent mass moving. A technique is developed to give the optimal DVA’s for the elimination of excessive vibration in harmonic stochastic and impact loaded systems. |
| Databáze: | OpenAIRE |
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