10 articles in this issue
Kirill Trapezon,Alexandr Trapezon
Based on symmetry and factorization methods, a general analytical solution to the fourth-order differential equation has been derived for a problem on the free axisymmetric oscillations of a circular plate of variable thickness. The law of the thickness c... see more
Oleksandr Grigorenko,Oleksandr Parkhomenko,Valentyna Darmosiuk,Larisa Vasil’eva
The paper reports an effective numerical procedure to solve problems on the free oscillations of isotropic gently sloping shells using a spline-approximation method of unknown functions along one of the coordinate directions. By applying the proposed proc... see more
Anatoliy Bovsunovsky,Aleksandr Litvinenko,Sergey Kadomsky,Yiuriy Boyko
Existing experimental studies of the sensitivity of damping characteristics to the presence of cracks in structural elements are contradictory. Some studies declare high damping sensitivity but others conclude that a change in the dissipative ability of t... see more
Oleksij Fomin,Alyona Lovska,Oleksandr Kovtun,Volodymyr Nerubatskyi
The longitudinal-dynamic load on a railroad train has been studied at its steady motion along the track of a homogeneous profile. A value of the longitudinal loading that a train is exposed to has been established. The calculations were carried out for a ... see more
Mykola Kulyk,Fedir Kirchu,Hussein Hanesh
A new shape of the tandem blade with an improved arrangement of profiles, in relation to the known propellers, in which the profiles are located similar to those in the tandem wing of an airplane is developed. A new arrangement of profiles along the heigh... see more
Madina Isametova,Dimitar Karaivanov,Rollan Nussipali
The CAD/CAE/CAM method of end-to-end design of the impeller of a seven-stage submersible pump ODDESSEzentralasien –UPP 13-7/6 used for pumping sulfuric acid in hydrometallurgy is presented.The studies are conducted in order to increase the efficiency of t... see more
Irina Filimonikhina,Viktor Deikun,Iryna Ienina,Mareks Mezitis,Vladimir Pirogov,Guntis Strautmanis,Sergij Yakimenko
This paper reports the established conditions for static self-balancing for the case of an asymmetric rotor on two isotropic elastic supports, balanced by a passive automatic balancer of any type. In general, the plane of static imbalance does not coincid... see more
Moch Agus Choiron
A crash box design is developed to enhance the crash box’s abilities to absorb crash energy. Previous research has developed the crash box by adding filler material. Adding the filling material to the crash box will increase energy absorption. Alumin... see more
Roman Antoshchenkov,?nton Nikiforov,Ivan Galych,Victor Tolstolutskyi,Vitalina Antoshchenkova,Sergey Diundik
The modern practice of using vibratory machines involving small seeds of low weight faces such an undesirable phenomenon as the effect exerted on the kinematics of vibrational movement of particles of fractions of the seed mixture by the aerodynamic force... see more