OPTIMAL DESIGN OF DYNAMIC VIBRATION ABSORBER FOR ROLLING SYSTEMS | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 12, Volume 18, 18th International Conference on Applied Mechanics and Mechanical Engineering., April 2018, Pages 1-16 PDF (1.41 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2018.34728 | ||
| Author | ||
| M. F. Younes | ||
| Assistant professor, Mechanical Design Dept., Faculty of Engineering – Mataria, Helwan University, Cairo, Egypt. | ||
| Abstract | ||
| ABSTRACT This work deals with the reduction of vibration levels for rolling systems such as ropeway gondola, cranes and ships using a dynamic vibration absorber (DVA). The optimum values of the DVA damping factor and the spring constant are determined numerically through minimizing a maximum response of the main system. Single DVA (SDVA) and multi- masses DVA (MDVA) in parallel configurations are examined. A Mini-max criterion optimization method is utilized to calculate the optimum design parameters of the DVA for many numbers of DVA masses with a constant total mass. The results obtained that the rising of the mass ratio leads to decrease the vibration levels. Using the MDVA leads to enhanced robustness and vibration attenuation in the main system at the expense of growing the vibration in the absorber. MDVA compared with SDVA have some advantages such as lower frequency ratios and low fatigue. | ||
| Keywords | ||
| Dynamic vibration absorber; Min-max technique; ropeway carrier; passive control; multiple tuned mass damper | ||
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