Experimental Study On TMD Seismic Response Control Of Solar Power Tower

In recent years,with the country attaches great importance to and vigorously develops clean energy,at the same time because of its excellent quality of power,low cost of power generation,low cost of operation and maintenance and other advantages,solar tower photothermal power generation has gradually become an important form of solar power generation.The photothermal power tower is an important structure in the solar power plant of the photothermal power tower,and it is a new type of high-rise structure.Vibration table the solar-thermal power tower 1:18 model seismic performance verification test in TMD condition compare analysis,and by using the finite element software ABAQUS,based on the optimization objective function,TMD parameters optimization was carried out on the solar-thermal power tower model selection,according to the result of dynamic time history analysis MTMD(Multiple tuned mass damper)system further consideration more child TMD,in order to obtain better effectiveness.By adding some TMD devices in the seismic performance verification test of the vibration platform of the photothermal power generation tower,the control of the acceleration and displacement of the model structure by the simplified TMD system under the premise of minimal mass ratio is studied and analyzed.Solar power tower was established based on finite element analysis software ABAQUS,the shaking table test model,and on top of a structure based on the objective function and the optimal theory,the optimization of the TMD system dynamic time history analysis,calculation and analysis the structure in the presence of acceleration and displacement response of the TMD system,and found that using single frequency tuning of the TMD system,under theseismic action of damping effect is related to the characteristics of seismic wave,and with the improvement of earthquake intensity,the effectiveness and robustness of the damping effect will be affected by the corresponding.TMD damping effect is analyzed,combining with the original structure of the platform layout and site construction conditions,and refer to the parameters of MTMD option related literature,the design MTMD system contains a number of different control frequency TMD,through the dynamic time history analysis under different working condition of earthquake,with TMD and setting up the acceleration and displacement response of the structure of the TMD,the results of the study results show MTMD system that contain multiple child TMD damping effect is better than a single frequency tuning of TMD system.