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   A Robust Optimization Model For Improving Reliability of Tuned Mass Damper  
   
نویسنده Balanian Mohsen ,Daei Maryam ,Tajmir Riahi Hossein
منبع Aut Journal Of Civil Engineering - 2017 - دوره : 1 - شماره : 2 - صفحه:121 -128
چکیده    One of the most promising and effective passive vibration control dampers is the tuned mass damper (tmd). many conventional optimization criteria are based on the implicit assumption that all parameters involved are deterministically known. removing this assumption means to convert a conventional optimization into a robust one. in this paper, a model for the robust optimum design of tmd is provided so that the optimal design of damper by considering the uncertainties possible in the earthquake load and also the structure properties can be achieved. the structural vibration control of the main system with a single linear tmd under a stochastic dynamic load is investigated. the dynamic input is represented by a random base acceleration, modeled by a stationary filtered white noise process. it is assumed that not only mechanical parameters of the main structure but also the input spectral contents are affected by uncertainty. the standard deviation of displacement of the protected main structure (dimensionless by dividing to the unprotected one) is calculated as the deterministic objective function (of), and to achieve a robust design the mean and standard deviation of of are considered as a multi-objective function which shall be minimum. the damping ratio and the frequency of tmd have been selected as design parameters. the results provide the different choices for designers to select an optimal tmd based on the priority of minimum mean of the maximum displacement of the structure or the minimum dispersion in a random space.
کلیدواژه Tuned Mass Damper ,State Space Equation ,Passive Control ,Uncertainty ,Robust Optimization
آدرس University Of Isfahan, Department Of Civil Engineering, ایران, University Of Isfahan, Department Of Civil Engineering, ایران, University Of Isfahan, Department Of Civil Engineering, ایران
 
     
   
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