Seismic stability of turbine unit K -540-23,5/50

• Дата: 2016
• Автори: Шульженко, М. Г., Гонтаровский, П. П., Гармаш, Н. Г., Глядя, А. О., Швецов, В. Л., Гришин, М. М., Губський, О. М.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2016
• Теми: seismic stability; turbine; foundation; base; accelerogram; rod finite element; vibration; УДК 539.3; сейсмостойкость; турбоагрегат; фундамент; основание; акселерограмма; стержневой элемент; колебания; сейсмостійкість; основа; акселерограма; стрижневий елемент; коливання
• Онлайн доступ: https://journals.uran.ua/jme/article/view/86795
• Назва журналу: Energy Technologies & Resource Saving

The seismic stability estimation of a powerful turbine unit K-540-23,5 / 50 is carried out by software developed based on the finite element method. For analysis of dynamic processes in the turbine units under seismic actions is necessary to be taken into account the interaction of the turbine unit and foundation. Method and software for analysis of turbine-foundation-base system under seismic action are proposed. The rod computational models for solve problems forced vibrations and transients shafting on complex elastic-damper supports are used. The foundation plates are modeled by of the rods grating that take into account elasticity and inertial properties of foundation elements. The lumped mass at the nodes of rods of foundation are used to account for the mass of the installed equipment. Accelerograms of real earthquakes are used for simulation of the impact of seismic load. The results of these studies have shown that the same intensity of seismic loads with different frequency perturbations causes to significantly different maximum values of displacements and stresses in system elements. The results of analysis of powerful turbine for different design models are shown. These results may be used for design of resistant to seismic action of the powerful turbine units