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Information × Registration Number 0219U102293, 0116U005703 , R & D reports Title Development of means of reducing the vibrational stresses of rotor blades from titanium alloy with erosional damages to prolong the life of turbines at 3000 rpm of power units WWER-1000 popup.stage_title Head Vorob'ev Yuriy S., Доктор технічних наук Registration Date 26-12-2019 Organization A. Podgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine popup.description2  The numerical analysis of the oscillation characteristics of blades made of titanium alloy 5-stage low pressure cylinder with erosion damages and different types of machining in the conditions of wet steam erosion is carried out. Experimental studies of the Institute of Electric Welding of NAS of Ukraine are taken into account. The experience of specific technical condition of blades in current and major repairs at Ukrainian NPPs was used. Possibilities of reduction of concentration coefficients of vibration stresses at various means of repair are shown. Numerous studies of the effect of repair in the areas of damage on the vibration level of individual blades and impellers have been performed. Measures have been developed to determine the resource for safe operation of blades in conditions of wet steam erosion in order to extend their operation. The results of the work are intended for use at NPP Ukraine. Product Description popup.authors popup.nrat_date 2020-04-02 Close