تحلیل و شبیه‌سازی دینامیکی سازه‌های چند درجه آزادی دارای جداساز لرزه‌ای با استفاده از نرم‌افزار متلب

One of the types of problems raised in the science of structural dynamics is the dynamic analysis of multi-degree-of-freedom structures. For the dynamic analysis of this type of structures, common dynamic analysis methods presented in the references are used. Calculating the angular frequencies of the structure, the periods of the structure, and determining the vibration mode shapes corresponding to them are among the most important purposes of analyzing multi-degree-of-freedom structures. Also, dynamic simulation of a structure under earthquake excitation can provide insight and understanding of the behavior of the structure during an earthquake. As a result, dynamic simulation of structures is of great importance to civil engineers. In recent decades, the use of seismic isolators has had many applications in order to reduce the responses of the structure under earthquake excitation. A seismic isolator in a building causes certain changes in the dynamic characteristics of the building. These changes reduce the dynamic responses of the structure under earthquake excitation. Therefore, it can be said that the dynamic analysis of buildings with seismic isolators has a special place in civil engineering. On the other hand, the cost of calculations of multi-degree-of-freedom structures increases significantly, especially when the number of degrees of freedom of the structure is large. For the reasons stated, in this research, programs have been written in MATLAB software for the purpose of dynamic analysis and simulation of multi-degree-of-freedom structures with seismic isolators. These programs take the characteristics of the structure, the isolator, and the earthquake acceleration acting on the structure in the form of input files from the user and then perform dynamic analysis and dynamic simulation of the structure. Finally, the important results of the dynamic analysis of the structure are also presented by the programs.