Andriy Andrusyak
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View article: Practical Design of Lattice Cell Towers on Compact Foundations in Mountainous Terrain
Practical Design of Lattice Cell Towers on Compact Foundations in Mountainous Terrain Open
Cell towers play a key role in providing telecommunications infrastructure, especially in remote mountainous regions. This paper presents an approach to the efficient design of 42-metre-high cell towers intended to install high-power equip…
View article: Evaluation of the Adaptive Behavior of a Shell-Type Elastic Element of a Drilling Shock Absorber with Increasing External Load Amplitude
Evaluation of the Adaptive Behavior of a Shell-Type Elastic Element of a Drilling Shock Absorber with Increasing External Load Amplitude Open
Vibration loads during deep drilling are one of the main causes of reduced service life of drilling tools and emergency failure of downhole motors. This work investigates the adaptive operation of an original elastic element based on an op…
View article: Calculation of the t-shaped shank of the steam turbine rotor blade
Calculation of the t-shaped shank of the steam turbine rotor blade Open
The broad possibilities of the developed approach [8, 9, 11, 12] are illustrated by the solution of a new practically important task related to specific design developments. The most important load-bearing elements of the rotors of steam t…
View article: Numerical Model for Studying the Properties of a New Friction Damper Developed Based on the Shell with a Helical Cut
Numerical Model for Studying the Properties of a New Friction Damper Developed Based on the Shell with a Helical Cut Open
Friction dampers based on the effects of dry friction are attractive to engineers because of their simple design, low manufacturing and maintenance costs, and high efficiency under heavy loads. This study proposes a new damper design based…
View article: A Method for Applying the Use of a Smart 4 Controller for the Assessment of Drill String Bottom-Part Vibrations and Shock Loads
A Method for Applying the Use of a Smart 4 Controller for the Assessment of Drill String Bottom-Part Vibrations and Shock Loads Open
Optimization of drilling processes for oil and gas and geothermal wells requires the effective use of mechanical energy for the destruction of rocks. When constructing a well, an important indicator of the drilling stage is the mechanical …
View article: Numerical model of interaction of a mobile lift chain with a main gas pipeline pipe in the process of repair work
Numerical model of interaction of a mobile lift chain with a main gas pipeline pipe in the process of repair work Open
The paper proposes an original design of a mobile lifting device for diagnosing and repairing support nodes of above-ground segments of gas pipelines without stopping gas transportation. When using such a device, the rollers of the lifting…
View article: Analytical Model of Interaction of an Oil Pipeline with a Support of an Overpass Built in a Mountainous Area
Analytical Model of Interaction of an Oil Pipeline with a Support of an Overpass Built in a Mountainous Area Open
Today, pipelines are the safest and most economical way to transport petroleum products and one of the key components of modern energy infrastructure. Nevertheless, pipeline systems are associated with certain risks that can lead to enviro…
View article: Evaluation the Stress-Strain State of Pumping Equipment in the Curvilinear Sections of the Wells
Evaluation the Stress-Strain State of Pumping Equipment in the Curvilinear Sections of the Wells Open
The development of oil fields at a late stage is characterized by a number of complications that determine the features of the operation of downhole equipment in pumping units. The use of electric-centered pumps in wells with intervals of …
View article: ANALYTICAL ESTIMATION OF INERTIAL PROPERTIES OF THE CURVED ROTATING SECTION IN A DRILL STRING
ANALYTICAL ESTIMATION OF INERTIAL PROPERTIES OF THE CURVED ROTATING SECTION IN A DRILL STRING Open
We have proposed approaches to analytical assessment of the moment of inertia related to the curved rotary sections in a drill string. Research into rotation processes of the curvilinear sections in a drill string is associated at present …
View article: Analytical estimation of inertial properties of the curved rotating section in a drill string
Analytical estimation of inertial properties of the curved rotating section in a drill string Open
We have proposed approaches to analytical assessment of the moment of inertia related to the curved rotary sections in a drill string. Research into rotation processes of the curvilinear sections in a drill string is associated at present …
View article: Analytical model of oil pipeline overground transitions, laid in mountain areas
Analytical model of oil pipeline overground transitions, laid in mountain areas Open
Abnormal climate changes cause adverse physical and geographical processes (erosion of soils, waterlogging, flooding, etc.) over the world. This situation stipulates study on effect of soil foundation malleability on pipeline transition st…
View article: Development of the method for estimating serviceability of equipment for the transportation of compressed natural gas
Development of the method for estimating serviceability of equipment for the transportation of compressed natural gas Open
To ensure safe transportation of compressed natural gas, we proposed, based on the results of studies conducted, the algorithm for a method for the evaluation of combined type tanks. The method implies determining parameters of the state o…
View article: Developing a method for the assessment of axial load in arbitrary cross-sections of the column of pumping rods
Developing a method for the assessment of axial load in arbitrary cross-sections of the column of pumping rods Open
For accurate and objective evaluation of the stressed-strained state of a column of pumping rods (PR), it is necessary to have reliable information about axial loads that act in its cross-sections at different depth. That is why the purpos…