Wyniki wyszukiwania - BazTech

1

The malfunction of a double-base propellant gas generator

Bogusz Rafał, Wolszakiewicz Tomasz

Materiały Wysokoenergetyczne

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2020

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T. 12(2)

92--98

EN

The paper presents results of research aimed at determining the cause leading to the malfunction of a double base gas generator. For the purposes of this work, gas generator charges and combustion chambers were intentionally damaged in order to replicate failure conditions. Damage to the inhibitor covering the gas generator and contamination in the combustion chamber, was simulated. The damaged charges and chambers were subjected to ballistic tests.

PL

W pracy przedstawiono wyniki badań mających na celu ustalenie przyczyny nieprawidłowego zadziałania ładunku gazogeneratora wykonanego z paliwa dwubazowego. Na potrzeby pracy celowo uszkodzono ładunki gazogeneratora oraz komory spalania w celu odtworzenia warunków awarii. Zasymulowano uszkodzenia inhibitora pokrywającego gazogenerator oraz zanieczyszczenia komory spalania. Uszkodzone ładunki oraz komory poddano badaniom balistycznym.

2

Optymalizacja trajektorii lotu samolotu w stanach awaryjnych przy wykorzystaniu algorytmów genetycznych

Kołodziejczyk R.

Logistyka

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2015

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nr 4

7667--7676, CD2

PL

Praca przedstawia metodę wyznaczania i optymalizacji trajektorii lotu obiektu latającego w sytuacjach awaryjnych i niebezpiecznych. Optymalizacja została przeprowadzona przy wykorzystaniu algorytmów genetycznych oraz porównana z inną metodą optymalizacji. Podejście do problemu wyznaczenia i optymalizacji trajektorii lotu przedstawione w niniejszej pracy może być z powodzeniem stosowane w różnych scenariuszach sytuacji awaryjnych. Wynika to z faktu, że algorytmy genetyczne są bardzo uniwersalne. Stosunkowo duża szybkość działania takich algorytmów pozwala na zaimplementowanie ich jako elementu pokładowego systemu wspomagania zarządzania lotem. Dzięki temu można w znacznym stopniu polepszyć bezpieczeństwo wykonywanych lotów i w sytuacjach stresujących odciążyć pilota samolotu, bądź operatora obiektu bezzałogowego. Ponadto na optymalizowaną trajektorie można nałożyć ograniczenia, które pozwolą na omijanie dużych skupisk ludzkich, dzięki czemu można minimalizować ryzyko jakie stanowi taki obiekt dla osób postronnych.

EN

The paper presents a method for determining and optimizing the trajectory of a flying object in emergencies and dangerous. Optimization was performed using genetic algorithms, and compared with another method of optimization. The approach to problem determination and optimization of trajectory presented in this work can be successfully applied in various scenarios of emergency. This is due to the fact that genetic algorithms are extremely versatile. The relatively high speed of such algorithms allows to implement them as part of the on-board flight management support system. This allows to greatly improve the safety of the flight and relieve pilot or operator in stressful situations. In addition to the optimized trajectories restrictions can be imposed that allow for avoiding large population centers, so you can minimize the risk posed by the flying object to the public.

3

Application of quantitative risk assesment to ship in emergency conditions

Gerigk M. K., Szulczewski P.

Journal of Polish CIMAC

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2014

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Vol. 9, no 2

45--55

EN

The paper is devoted to safety ofships in emergency conditions The currently valid prescriptive method ofsafety assessment ofships in damage conditions is included in the SOLAS 2009 Part B-2 Ch.H-l regulations. h is devoted to the design stage and difficult to apply in operation. A possible alternative described in this paper is a method based on assessment of performance of ships and risk assessment. Type of risk evaluation is the quantitative risk assessment. The matrix type risk model has been applied for estimation the riskand the measure of safety of ships level is based on the risk acceptance criteriafrom the risk matrix. After the risk assessment the method may be itsed for the safety management purposes using the risk control options.

4

Operational model for atmospheric transport and deposition of air pollution

Mazur A., Bartnicki B., Zwoździak J.

Ecological Chemistry and Engineering. S

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2014

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Vol. 21, nr 3

385--400

EN

An assessment of the current state of natural environment affected by air pollution, as well as, forecasts of pro-ecologic, economic and social activities are very often performed using models for atmospheric transport and deposition of air pollutants. In the present paper, we present an operational dispersion model developed at the Institute of Meteorology and Water Management in Warsaw. The basic assumptions and principles of the model are described together with the operational domain and examples of model applications. Two examples of model application are described and discussed here. The first, application is a simulation of the atmospheric transport and deposition of the radioactive isotopes released into the atmosphere during the Chernobyl Accident in 1998. The second example is related to simulation of atmospheric transport of the tracer released into the air during the ETEX experiment. These two examples and previous applications of the model showed that presented dispersion model is fully operational, not only for long term applications, but especially for emergency situations, like nuclear accidents or volcanic eruptions affecting Polish territory

PL

Do oceny aktualnego stanu środowiska naturalnego w związku z rozprzestrzenianiem się zanieczyszczeń atmosferycznych i do związanego z tym prognozowania proekologicznych działań gospodarczych i społecznych powszechnie stosowane są modele transportu zanieczyszczeń w atmosferze. W niniejszej pracy opisano operacyjny model dyspersji opracowany w Instytucie Meteorologii i Gospodarki Wodnej w Warszawie. Omówiono obszar jego obliczeń, a także przykłady jego zastosowania: symulacja transportu atmosferycznego i depozycji substancji promieniotwórczych uwolnionych podczas awarii w Czarnobylu w 1986 roku. Drugi przykład dotyczył symulacji transportu atmosferycznego substancji pasywnej (tracera) podczas eksperymentu ETEX. Te dwa przykłady i poprzednie zastosowania modelu wykazały, że zaprezentowany model dyspersji jest w pełni funkcjonalny nie tylko do zastosowań długoterminowych, ale przede wszystkim w sytuacjach kryzysowych, takich jak wypadki jądrowe lub erupcje wulkaniczne, które mogą wpływać na stan środowiska na terytorium Polski.

5

Naucno-tehniceskaa i innovacionnaa deatel'nost' nii PBICS MCS Belarusi v sfere zasity ot crezvycajnyh situacij. Realizacia prioritetnyh napravlenij

Lushchika A.

Bezpieczeństwo i Technika Pożarnicza

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2013

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Nr 1

43-46

EN

The Research Institute of Fire Safety and Emergencies of the Ministry for Emergency Situations, Republic of Belarus, is a leading research facility and falls under the jurisdiction of the Ministry for Emergency Situations (MCzS). In compliance with Belarus law, its purpose is to address scientific and technical problems with a view of preventing and eliminating emergency situations. The Institute is the main research facility in the Republic engaged within the range of issues associated with emergencies. It is a public research centre of the Republic, providing research facilities within the certification and production system of Russia and is also a member of European Group of Official Laboratories for Fire Testing (EGOLF). The Institute is an accredited establishment in the GOST standard system, concerned with product and applied scientific testing, and consultancy on matters regarding fire safety. The Institute conducts incident ground testing of construction materials, fire resistance and prototype testing of rescue equipment. Additionally, the Institute publishes a magazine "Emergency Situations: Prevention and Elimination". Articles published in the magazine are prepared by authors completing academic degree courses, which are reviewed by WAK Belarus. In accordance with departmental regulations, the main priorities for the Institute are: - A scientific approach to fire safety in the Republic of Belarus, harnessing preventive measures in fire protection and rescue operations; - Development and improvement of procedural documentation with regard to fire prevention, fire fighting techniques and elimination of emergencies, within the scope of established standards and norms; - Conducting scientific research, expert appraisal of fire and other natural threats and those posed by humans; - Development and improvement of fire and rescue vehicles, technical apparatus, devices used in fire protection and rescue equipment employed to ensure the safety of people and property; - Testing of product safety parameters and fire hazard characteristics of goods manufactured in the Republic as well as of those imported from abroad; - Incident ground fire testing of large building constructions as well as design and production of appropriate testing equipment; - Exhibitions, publications and advertising in the area of fire safety, emergency and rescue operations; Taking into account the scope of activities placed on establishments subordinated to MCzS, with responsibility for elimination emergency situations and organizing rescue and fire fighting activities, resourcing such establishments with appropriate and most up to date equipment and fire fighting media becomes problematic.

6

Ecological, economic and social consequences of emergencies on potash mines

Ponomarenko T.

Management Systems in Production Engineering

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2012

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nr 2 (6)

28-31

EN

An increase in the marine transportation with growing requirement for electricity by the ships both result in is the increased pollution of the air generated by the ships. This is important for the ports. A comparison among different sources of air pollution produced by the ships in the ports is presented in this article. The estimation of the magnitude of air pollutants emitted by the ships in ports is necessary for the proper economic activity of the port. It also creates the basis to determine the impact of the port work on the environment. The authors present a methodology of calculating emissions from ships at berth in ports.