scholarly journals Reliability Analysis of Technical Means of Transport

2020 ◽  
Vol 10 (9) ◽  
pp. 3016 ◽  
Author(s):  
Józef Żurek ◽  
Jerzy Małachowski ◽  
Jarosław Ziółkowski ◽  
Joanna Szkutnik-Rogoż
Keyword(s):  
System Reliability ◽  
Spare Parts ◽  
Special Role ◽  
Original Solution ◽  
Military Logistics ◽  
Reliability Indicators ◽  
Military Unit ◽  
Vehicle Fleet ◽  
Expected Fitness

The importance of system reliability within military logistics should be considered in terms of the ability to ensure the readiness of all available resources, e.g., means of transport, which are necessary during the realization of operational tasks. A special role is played by technical security, which enables the performance of all the specific tasks by the realization of the process supporting the subsystem in the area of providing the necessary assemblies, subassemblies and spare parts. The objective of the work was to define reliability in relation to technical means of transport and to illustrate an original solution leading to the determination of the expected fitness time of the available vehicle fleet, using the example of a selected military unit. The GNU Octave software—designed to conduct, among other things, advanced numerical computations—was used for the study. The daily operational mileage for a selected group of means of transport and the moments of failures were recorded during the tests, for the period from 31 December 2013 until 30 June 2015. The conducted analysis enabled the determination of the fundamental reliability indicators. The presented model has been supported with numerical examples, along with the interpretation of the obtained results.

scholarly journals Method of Estimating Uncertainty as a Way to Evaluate Continuity Quality of Power Supply in Hospital Devices

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 486
Author(s):  
Marek Stawowy ◽  
Adam Rosiński ◽  
Jacek Paś ◽  
Tomasz Klimczak
Keyword(s):  
Power Systems ◽  
Power Supply ◽  
Uncertainty Modeling ◽  
Supply System ◽  
Additional Advantage ◽  
Quality Models ◽  
Reliability Indicators ◽  
Electrical Devices

The article presents issues related to the determination of the continuity quality of power supply (CQoPS) for hospital electrical devices. The model describing CQoPS takes into account power redundancy. The uncertainty modeling method based on the certainty factor (CF) of the hypothesis was used to establish the single-valued CQoPS factor. CQoPS modeling takes into account multidimensional quality models and physical stages of power. The quality models take into account seven dimensions that make up CQoPS (availability, appropriate amount, power supply reliability, power quality, assurance, responsiveness, security). The model of power stages includes five of these stages (power generation, delivery to recipient, distribution by recipient, delivery to device, power-consuming device). To date, when designing hospital power systems, the applied reliability indicators revealed limitations because they do not consider all the possible factors influencing the power continuity. Estimating the supply continuity quality with the use of the uncertainty modeling proposed in this article allows for taking into account all possible factors (not just reliability factors) that may affect supply continuity. The presented modeling offers an additional advantage, namely, it allows an expanded evaluation of the hospital supply system and a description using only one indicator. This fact renders the evaluation of the supply system possible for unqualified staff. At the end of the article, some examples of calculations and simulations are presented, thus showing that the applied methods give the expected results.

scholarly journals Issues in Design and Development of Reliable Configurable Distributed Checkout and Launch System for Mission Critical Aero-Space Flight Vehicles

2020 ◽  
Vol 9 (4S2) ◽  
pp. 77-81
Keyword(s):  
System Reliability ◽  
Fault Tolerant ◽  
High Reliability ◽  
Critical Parameters ◽  
Health Checks ◽  
Flight Vehicles ◽  
Mission Critical ◽  
Criticality Analysis

Role of Configurable Distributed Checkout and Launch System (CDCLS) is pivotal in carrying out quick health checks and launching of Aerospace Flight Vehicles. Configurable Distributed Architecture provides flexibility for connecting nodes and scaling Distributed System. Different configurations can be derived from the Master Configuration. Since, Ultra high reliability and infallible performance of the CDCLS is of paramount importance, Safety criticality and Mission criticality analysis needs to be carried out for determination of mission critical parameters. These critical parameters need to be addressed by required fault tolerant architecture, which can be implemented in Hardware and Software for achieving system reliability objective (Say, 0.99).

scholarly journals Ways of Logistics Improvement of the Freight Market

2019 ◽  
Vol 5 (12) ◽  
pp. 312-315
Author(s):  
M. Gaffarov
Keyword(s):  
Freight Transportation ◽  
The State ◽  
Vehicle Fleet ◽  
Freight Market ◽  
Transport Logistics

Problems in the freight transportation market are considered: low solvency of customers, increase in the vehicle fleet and increased competition in the market, determination of tariffs for the transportation of goods based on the state of customers on idle cars, setting bonus tariffs in the same direction. The calculations and the sequence of actions for creating transport logistics are presented.

scholarly journals Raja yoga within the system of religious-ethical philosophy Of M. V. Lodyzhensky

2020 ◽  
pp. 64-90
Author(s):  
Oleg Viktorovich Solopov
Keyword(s):  
Critical Review ◽  
Scientific Literature ◽  
Critical Assessment ◽  
Special Role ◽  
The Novel ◽  
Ethical Philosophy ◽  
Knowledge Ontology ◽  
Comprehensive Study

This article is dedicated to examination of the characteristics of the doctrine of Raja yoga in interpretation Of M. V. Lodyzhensky. The goal consists in the analysis and reconstruction of the system of Raja yoga within the religious-ethical philosophy of the thinker. In the course of this research, the author resolves a number of problems: examines the system of primary elements of religious-ethical philosophy of M. V. Lodyzhensky; analyzes the sources that affected the formation of views of the philosopher upon Raja yoga; reveals main characteristics of the system of Raja yoga within Lodyzhensky’s philosophy; determines the peculiarities of religious-mystical practice of Raja yoga in the philosophy of M. V. Lodyzhensky; defines the role of Raja-yoga within the system of religious-ethical philosophy of the thinker. The novelty lies in determination of the novel in comparison to the existing in scientific literature categories of M. V. Lodyzhensky’s philosophy and their analysis in the context of system of fundamental sections of philosophical knowledge (ontology, theology, anthropology, epistemology, axiology, ethics); as well as in comprehensive study of the system of Raja yoga in interpretation Of M. V. Lodyzhensky and determination of its role within the structure of his philosophy. It is established that the “core” of the system of religious-ethical philosophy of M. V. Lodyzhensky is the ethics develop ethics and axiology of Hesychasm developed by him. It is proven that the system of metaphysical categories and ideas of the thinker is of synthetic nature and leans on various cultural trends and traditions. The article demonstrates that special role within the system of Lodyzhensky’s philosophy is played by the apologetics of Hesychasm that implies critical review of the non-Christian mystical practices, among which is the examination of Raja yoga. The author underlines the uniqueness of interpretation of Raja yoga in the philosophy M. V. Lodyzhensky, as well as provides critical assessment to his interpretation of the system of Raja yoga.

scholarly journals Strategy for the achievement of an effective life cycle of real property erection and operation

2020 ◽  
Vol 164 ◽  
pp. 10044
Author(s):  
Lyubov Manukhina ◽  
Larisa Prykina
Keyword(s):  
Life Cycle ◽  
Strategic Management ◽  
Negative Impact ◽  
Special Role ◽  
Financial Industry ◽  
Real Property ◽  
Internal Resources ◽  
Construction Organizations ◽  
Project Risks

Strategic management of construction systems is a process of making decisions that combine goals setting, determination of long-term milestones and their improvement, determination of activity models, redistribution of external and internal resources of construction organizations to achieve the maximum effects of the life cycle of real property erection and operation [1]. Experts from various industries simultaneously participate in the strategic management of the real property life cycle: engineers, financial industry experts, economists, politicians and other participants in investment and construction activities capable of achieving goals and meeting requirements at all stages of real property erection and operation. A special role is played by indicators of the degree of project risks that arise in the course of external changes and can have a negative impact in the form of possible losses on the final results of project implementation. Risks in one form or another are manifested as changes in financial, technical, organizational and other aspects. Therefore, in the process of construction systems strategic management special attention should be paid to the state of risks.

Determination of optimal heat-exchanger networks under regard of the system-reliability

1979 ◽  
Vol 3 (1-4) ◽  
pp. 303 ◽  
Author(s):  
R. Walse ◽  
J. Kardos
Keyword(s):  
Heat Exchanger ◽  
System Reliability ◽  
Optimal Heat ◽  
Heat Exchanger Networks

PRELIMINARY EXPERIMENTAL RESEARCH OF TRIBOLOGICAL PROPERTIES OF BUS BRAKES FRICTION LININGS

Tribologia ◽  
2016 ◽  
Vol 268 (4) ◽  
pp. 167-176 ◽  
Author(s):  
M.S. MUZDYBAEV ◽  
A.S. MUZDYBAEVA ◽  
V.V. ROGOVSKIJ ◽  
D.M. MYRZABEKOVA ◽  
A.B. ELEMES ◽  
...  
Keyword(s):  
Working Conditions ◽  
Tribological Properties ◽  
Traffic Safety ◽  
Spare Parts ◽  
Practical Significance ◽  
Brake Discs ◽  
The Cost ◽  
Urban Conditions ◽  
Overall Reliability

Experience gained from the use of buses in urban conditions showed that the working conditions of friction elements of the braking system, ensuring traffic safety, are associated with high loads. This leads to the intensive wear and premature replacement of the worn friction components, which reduces the overall reliability of the brake system and road safety. On the other hand, the friction linings of brake mechanisms may act as abrasives that cause the wear of brake discs or drums. Their replacement during operation is associated with a significant increase in the cost of spare parts. Therefore, it is assumed that the determination of the tribological properties of the brake linings in the brake mechanisms, before their exploitation, will increase the efficiency and safety of the vehicles’ operation, which justifies the choice of the research subject matter for its real and practical significance. The paper presents the preliminary results of the research into the main elements of the brakes in a city bus on a test stand mapping the real working conditions. For the testing, brake shoes of different manufacturers were used. Their tribological characteristics, reasons for their wear, and operational recommendations were determined.

Cossacks Identity Problem in the Context of Social and Cultural Integration of the Russian Population in the Modern Conditions

2016 ◽  
Vol 5 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Капица ◽  
G. Kapitsa ◽  
Кащенко ◽  
T. Kashchenko
Keyword(s):  
Russian Population ◽  
Self Determination ◽  
Cultural Integration ◽  
Special Role ◽  
Identity Problem ◽  
Relevant Today ◽  
Modern Russian

The authors aim to define the foundations of identity of Cossacks as a part of the multi-layered identity in the Russian Federation. Two concepts are considered: the ambivalence of Cossacks and the concept of cultural core of self-determination of Cossacks. The paper emphasizes the special role of the Cossacks in the Russian socio-cultural situation in view of the fact that the Cossack values and behavioral complex is still relevant today, it fits well with the modern Russian reality. Cossacks today are a reliable stronghold of the healthy statehood.

ICONE11-36240 APPLYING OF NEURAL NETWORKS IN DETERMINATION OF REPLACEMENT CYCLE OF SPARE PARTS

2003 ◽  
Vol 2003 (0) ◽  
pp. 15
Author(s):  
Tomislav Saric ◽  
Niko Majdandzic ◽  
Roberto Lujic
Keyword(s):  
Neural Networks ◽  
Spare Parts ◽  
Replacement Cycle
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