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Information × Registration Number 0211U007522, 0108U002469 , R & D reports Title Increasing the work effektiv of the lift-transporting machines popup.stage_title Head Natalia Fidrovskaya, Registration Date 20-06-2011 Organization Ukrainian Engineering-Pedagogic Academy popup.description2 The research consists in the following: a new method of calculation of rope drums is developed; new law of load distribution in the coils of rope is proposed; influence of forehead rigidity on the strength and stability of the shell is evaluated; three-dimensional problem of the strength of a cylindrical shell is solved; loads of rope shell near the rings of rigidity is evaluated; the methodology of calculating stress in welds is given, that was shown that after weld of rings of rigidity appears local stresses, that considerably exceed compression stress on the action of the rope that is wound onto the drum in the issue of system modeling “engine-transmission-load” the dynamic loads are determined that action to the automobile crane drive by transiton; the conditions that provoke phenomena of beatings in fourthmass mechanic system are found; generic mathematical model that allow to establish principles of wear of automobile crane drives are received; the mathematical model of stress distribution by contact of rolling motion solids in bearings is built and maximal effective stress and there distribution on the contact patch are determined; the experimental investigations of bearings vibration by their work are conducted and methodology that allows to evaluate the remaining life of bearing with vibration level without assembly-disassembling operations is developed; analytical solution for threemass mechanic system with elastic linkages in moments of elastic forces that free oscillation perform is obtained for determine of beating through account of percentages distribution; analytic form for determine dynamic stress in the upper and lower section of rope and safety factor by emergency brake is found; equations of motion of hoist crane with load on flexible suspension by collisions on bumping post is received; calculation of impact force with that hoist crane collisions on bumping post is done; new construction of hydraulic buffer that increases reliability and safety of hoist cranes is suggested; methodology of determine remaining life of girder of overhead type cranes that are weakened by different types of defects from linear mechanic position is developed. Product Description popup.authors Іванов Веніамін Миколайович Ісьєміні Ілля Ігорович Назаркін Олександр Анатолійович Нестеров Артем Павлович Осипова Тетяна Миколаївна Подоляк Олег Степанович Родіонов Лев Анатолійович Смоляков Сергій Леонідович Чернишенко Олександр В'ячеславович popup.nrat_date 2020-04-02 Close