5 research outputs found
Blockchain Solutions for Multi-Agent Robotic Systems: Related Work and Open Questions
The possibilities of decentralization and immutability make blockchain
probably one of the most breakthrough and promising technological innovations
in recent years. This paper presents an overview, analysis, and classification
of possible blockchain solutions for practical tasks facing multi-agent robotic
systems. The paper discusses blockchain-based applications that demonstrate how
distributed ledger can be used to extend the existing number of research
platforms and libraries for multi-agent robotic systems.Comment: 5 pages, FRUCT-2019 conference pape
Control of Extended Beam Dynamic Behavior by Means of Supports at Temperature Changes
ΠΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π±Π°Π»ΠΎΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΠΏΡΠΈ ΠΏΠ΅ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
Π½Π°Π³ΡΡΠ·ΠΊΠ°Ρ
Π²ΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΌ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌ ΠΈΡ
ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΎΡ ΠΈΠ·Π³ΠΈΠ±Π½ΡΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ
ΠΎΠ±ΡΡΠ½ΠΎ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΎΠΏΠ°ΡΠ½ΠΎΠΉ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠ΅ΡΠ²Π°Ρ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½Π°Ρ ΡΠ°ΡΡΠΎΡΠ°. ΠΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ
Π·Π°ΠΊΡΠ΅ΠΏΠ»Π΅Π½Π½ΠΎΠΉ Π±Π°Π»ΠΊΠΈ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΏΠΎΡΠ²Π»Π΅Π½ΠΈΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΡΠ½ΠΎΠΉ ΡΠΈΠ»Ρ, ΠΊΠΎΡΠΎΡΠ°Ρ ΡΠΌΠ΅ΡΠ°Π΅Ρ ΡΠΏΠ΅ΠΊΡΡ
ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΎΡ ΠΈΠ·Π³ΠΈΠ±Π½ΡΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π² ΠΎΠΏΠ°ΡΠ½ΡΡ ΡΠ΅Π·ΠΎΠ½Π°Π½ΡΠ½ΡΡ ΠΎΠ±Π»Π°ΡΡΡ ΠΈ ΠΌΠΎΠΆΠ΅Ρ Π΄Π°ΠΆΠ΅
ΠΏΡΠΈΠ²Π΅ΡΡΠΈ ΠΊ ΠΏΠΎΡΠ΅ΡΠ΅ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΠΏΡΠΈ Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΠΈ Π΅Ρ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡ. ΠΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ
ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ΠΌ Π±Π°Π»ΠΊΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΡΠΉ Π²ΡΠ±ΠΎΡ ΡΠΈΡΡΠ΅ΠΌΡ
ΠΎΠΏΠΎΡ, ΠΎΠ΄Π½Π°ΠΊΠΎ Π² ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎΠΉ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΠ΅ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ Π½Π΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ ΡΠ°ΠΊΠΎΠΉ ΠΏΡΠΎΠ΅ΠΊΡΠ½ΡΠΉ
ΠΏΠΎΠ΄Ρ
ΠΎΠ΄. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄Π»Π°Π³Π°Π΅ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΡΠ±ΠΎΡΠ° ΡΡ
Π΅ΠΌΡ Π·Π°ΠΊΡΠ΅ΠΏΠ»Π΅Π½ΠΈΡ Π΄Π»Ρ
ΠΏΡΡΠΌΠΎΠ»ΠΈΠ½Π΅ΠΉΠ½ΡΡ
ΠΌΠ½ΠΎΠ³ΠΎΠΎΠΏΠΎΡΠ½ΡΡ
Π±Π°Π»ΠΎΠΊ Ρ ΡΠ΅Π»ΡΡ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ Π·Π°Π΄Π°Π½Π½ΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΠΏΠ΅ΡΠ²ΠΎΠΉ ΡΠ°ΡΡΠΎΡΡ
ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΈΠ·Π³ΠΈΠ±Π½ΡΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΠΈ ΠΏΠ΅ΡΠ²ΠΎΠΉ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π½Π°Π³ΡΡΠ·ΠΊΠΈ ΠΎΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΎΡΠ΅Π²ΠΎΠΉ ΡΠΈΠ»Ρ,
Π²ΡΠ·Π²Π°Π½Π½ΠΎΠΉ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ Π±Π°Π»ΠΊΠΈ. ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½Π° Π½Π° ΠΈΠ·Π²Π΅ΡΡΠ½ΡΡ
ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΡΡ
ΡΠ΅ΠΎΡΠΈΠΈ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π±Π°Π»ΠΎΠΊ, ΡΠ΅ΠΎΡΠΈΠΈ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΠΏΠΎ ΠΠΉΠ»Π΅ΡΡ ΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΡΠΈΡΠ΅ΡΠΈΡ
Π²ΡΠ±ΠΎΡΠ° ΡΡ
Π΅ΠΌΡ Π·Π°ΠΊΡΠ΅ΠΏΠ»Π΅Π½ΠΈΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΡ ΠΎΠΏΠΎΡ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π½ΠΎΡΠΌΠΈΡΡΡΡΡΡ Π΄Π»Ρ
Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΡ ΡΠΎΠΏΠΎΡΡΠ°Π²ΠΈΠΌΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ. ΠΡΠ±ΡΠ°Π½Π½Π°Ρ ΡΡ
Π΅ΠΌΠ° ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π·Π°Π΄Π°Π½Π½ΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅
ΠΏΠ΅ΡΠ²ΠΎΠΉ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΡΠ°ΡΡΠΎΡΡ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ, Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΠΏΠ΅ΡΠ²ΠΎΠΉ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ
ΠΈΠ»ΠΈ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ ΠΎΠ±Π° ΡΡΠ»ΠΎΠ²ΠΈΡ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ. Π‘ΠΎΠ³Π»Π°ΡΠ½ΠΎ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ΅
Π²ΡΠΏΠΎΠ»Π½Π΅Π½Ρ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΡΠ°ΡΡΠ΅ΡΡ ΠΏΡΡΠΌΠΎΠ³ΠΎ ΡΡΡΠ±ΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π° ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠΎΠ½Π΅ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ²
Π΄Π»Ρ Π±Π°Π»ΠΎΡΠ½ΠΎΠΉ ΠΈ ΠΎΠ±ΠΎΠ»ΠΎΡΠ΅ΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ Ρ
ΠΎΡΠΎΡΡΡ ΡΡ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ²
ΠΏΠΎ Π²ΡΠ΅ΠΌ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ ΠΏΡΠΈ
ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΠΏΡΠΎΡΡΠΆΠ΅Π½Π½ΡΡ
Π±Π°Π»ΠΎΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ Π΄Π»Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π»ΡΠ±ΠΎΠΉ ΠΈΡ
ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΡΠ°ΡΡΠΎΡΡ ΡΠΏΠ΅ΠΊΡΡΠ° ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΠΈ ΠΊΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΈΠ»Ρ (ΠΈΠ»ΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ) ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²ΠΎΠΌ
ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΡΠ±ΠΎΡΠ° ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠ΅ΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΠΎΠΏΠΎΡThe dynamic behavior of beam structures at transient loads is largely determined by the spectrum of their natural frequencies of bending vibrations, in which the first natural frequency is usually the most dangerous. Changing the beam temperature results in a longitudinal force that shifts the spectrum of natural frequencies of bending vibrations into a dangerous resonant area and can even lead to a loss of beam stability when it reaches a critical value. An effective way to control the dynamic behavior of the beam is the reasonable choice of the support system, however, such a design approach is practically not considered in the known literature.
This paper proposes a method of reasonable selection of a support scheme for rectilinear multi-span beams in order to provide the given values of the first eigen frequency of bending vibrations and the first critical load due to the action of axial force caused by changing the temperature of the beam. The technique is based on the known positions of beam vibration theory, Euler stability theory and uses support coefficients, which are pre-normalized to achieve comparable values, as a criterion for selecting the support scheme. The selected support scheme provides the specified value of the first eigen frequency, the value of the first critical temperature, or both at the same time.
According to the developed methodology, comparative calculations of the pipeline by the finite element method for beam and shell models were carried out, which showed good convergence of results for all controlled parameters. The proposed approach can be used in designing structures of extended beams for control of their own frequency of the spectrum of vibrations and critical force (or temperature) by means of a reasonable selection of appropriate support system
Blockchain Solutions for Multi-Agent Robotic Systems: Related Work and Open Questions
The possibilities of decentralization and immutability make blockchain probably one of the most breakthrough and promising technological innovations in recent years. This paper presents an overview, analysis, and classification of possible blockchain solutions for practical tasks facing multi-agent robotic systems. The paper discusses blockchain-based applications that demonstrate how distributed ledger can be used to extend the existing number of research platforms and libraries for multi-agent robotic systems
Towards Blockchain-based Multi-Agent Robotic Systems : Analysis, Classification and Applications
Decentralization, immutability and transparency make of Blockchain one of the most innovative technology of recent years. This paper presents an overview of solutions based on Blockchain technology for multi-agent robotic systems, and provide an analysis and classification of this emerging field. The reasons for implementing Blockchain in a multi-robot network may be to increase the interaction efficiency between agents by providing more trusted information exchange, reaching a consensus in trustless conditions, assessing robot productivity or detecting performance problems, identifying intruders, allocating plans and tasks, deploying distributed solutions and joint missions. Blockchain-based applications are discussed to demonstrate how distributed ledger can be used to extend the number of research platforms and libraries for multi-agent robotic systems.arXiv:1907.07433</p