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Almatbek Kydyrbekuly, Algazy Zhauyt and Gulama-Garip Alisher Ibrayev
The generalized dynamic model of the rotor system, presented in this paper, is the first model that takes into account the interconnected oscillations of the ?rotor?weakly conductive fluid?foundation? system under the action of parameters such as fluid a...
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Heiko Woith, Josef Vlcek, Tomá? Vylita, Torsten Dahm, Tomá? Fischer, Kyriaki Daskalopoulou, Martin Zimmer, Samuel Niedermann, Jessica A. Stammeier, Veronika Turjaková and Martin Lanzendörfer
Mofettes are gas emission sites where high concentrations of CO2 ascend through conduits from as deep as the mantle to the Earth?s surface and as such provide direct windows to processes at depth. The Hartou?ov mofette, located at the western margin of t...
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Andry Sedelnikov, Valeria Serdakova, Denis Orlov and Alexandra Nikolaeva
The paper investigates the stress?strain state of a homogeneous rectangular plate after a temperature shock. It is believed that the plate is the first approximation of the solar panel model of a small spacecraft. To study the stress?strain state of the ...
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Kirill Trapezon,Alexandr Trapezon
Pág. 16 - 23
This paper reports an analytical solution to one of the problems related to applied mechanics and acoustics, which tackles the analysis of free axisymmetric bending oscillations of a circular plate of variable thickness. A plate rigidly-fixed along the c...
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Volodymyr Yatsun,Gennadiy Filimonikhin,Antonina Haleeva,Larisa Krivoblotsky,Yurii Machok,Mareks Mezitis,Nataliia Podoprygora,Mykola Sadovyi,Guntis Strautmanis
Pág. 103 - 111
The dynamics of a three-mass vibratory machine with the rectilinear translational motion of platforms and a vibration exciter in the form of a ball, roller, or pendulum auto-balancer have been analytically investigated.The existence of steady state motio...
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Kirill Trapezon,Alexandr Trapezon
Pág. 12 - 18
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 ...
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Oleksandr Grigorenko,Oleksandr Parkhomenko,Valentyna Darmosiuk,Larisa Vasil?eva
Pág. 19 - 25
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 pro...
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Antonio Martínez García,Miriam Vilaragut Llanes,Manuel Barroso Baeza,Lázaro Guerra Hernández,Miguel Castro Fernández,Iohann Rafull Suárez
Se presentan las investigaciones desarrolladas relacionadas con la determinación de las causas de desconexión durante la sincronización y toma de carga de algunos motores diésel de 1 MW de la firma Guascor, por mala operación de la protección contra fall...
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Annalisa De Leo, Alessia Ruffini, Matteo Postacchini, Marco Colombini and Alessandro Stocchino
The occurrence and the effects of hydraulic jump instabilities on a natural river confluence in a small river basin in Liguria (Italy) is here investigated. Hydraulic jump instability has been extensively studied in controlled and simplified laboratory r...
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Oleksij Fomin,Alyona Lovska,Ievgen Medvediev,Halyna Shatkovska
Pág. 30 - 37
To reduce the dynamic loading and prolong the service life of a semi-wagon's girder beam by improving its fatigue strength, it has been proposed to improve its design. A special feature of the girder beam is that its middle part (the distance between the...
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