Pervushin R.V. Ensuring aircraft safety in potential icing conditions
Ensuring aircraft safety in potential icing conditions
Pervushin R.V.
The paper presents a comparative analysis on identifying groups of meteorological parameters to assess their informational content on the state of the atmosphere in aircraft icing. For the effective remote detection of potential aircraft icing areas it is necessary to upgrade the existing board (active) meteorological radars. Estimating the effectiveness of the resulting passive-active system and the method of detecting dangerous areas is performed by reducing the uncertainty in the transition from one system to another. Entropy is used while assessing the level of uncertainty. The choice of processing algorithm of joint radiometric and radar system for remote detection of aircraft potential icing areas is reasoned. Discriminant functions serve as the basis of the algorithm for icing areas detection. Their relative characteristics are given. The application of non-linear discriminant function to detect icing areas is offered.
Keywords: aircraft, flight safety, weather conditions, aircraft icing, joint radiometric and radar systems, JRRS, discriminant function, the algorithm accuracy, detection efficiency.
References
- Pervushin R.V. Passive-active radio resources of control meteorological parameters: Dissertation of the candidate of technical sciences. – Vladimir: 2007. − 151 p.
- Abramovich K.G., Vasilyev G.V., Prokhorova V.M. About the prediction of quantitative characteristics of aircraft icing // Proceedings of the Hydrometeorological Center of the USSR. Issue 176. – Moskow: Gidrometeoizdat, 1977. − P.76-85.
- Vimberg G.P., Tarabukin I.A., Shchukin G.G. Evaluating the effectiveness of the passive-active radar method for determining the average water content of supercooled cloud bands for use in the prediction of possible icing of aircraft // Proceedings of the GGO. Issue 526. − L. Gidrometeoizdat, 1988. − P.49-55.
- Pervushin R.V. Improve safety of aircraft in adverse weather conditions // Engineering industry and life safety, 2011, № 3. − P.18-21.
«Engineering industry and life safety» №2 (16), 2013. Pages: 9-12
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Pervushin Radislav Valentinovich – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: prv@pochta.ru
Ermolaeva V.A. Measures to reduce noise pollution in the technological process of threading
Measures to reduce noise pollution in the technological process of threading
Ermolaeva V.A.
The paper gives a detailed analysis of technological process of threading pipes and characteristics of the production equipment. It presents identification and analysis of the occupational and environmental hazards and dangerous substances generated by the manufacturing process. Industrial noise and vibration levels have been estimated, their meanings being compared with the normative data. The system of occupational and environmental safety at the site has been developed as well as the system against the above-mentioned negative factors. In order to reduce the level of noise it is advisable to side the walls with semi-soft acoustic plates. The noise reduction value is determined through the application of sound-absorbing cladding. The potential risk of traumatic situations and occupational disease is reduced as well as significant effects of working conditions on workers’ health. The economic analysis of security management system under consideration has been conducted.
Keywords: noise pollution, technological process, sound-absorbing materials.
References
- Kozikova I.V., Ermolaeva V.A. The use of a catalytic method of neutralization of organic impurities in gas emissions of complex composition // Advances in current natural sciences, 2011, № 7. − P. 123.
- Ermolaeva V.A., Petrova E. Selection of efficient treatment of gaseous emissions as part of environmental safety // Modern high technologies, 2008, № 2. − P.38.
- Ermolaeva V.A., Kozikova I.V. Calculation of theoretically necessary thickness of a layer and volume of the catalyst for clearing of gas emissions of difficult structure // Engineering industry and life safety, 2011, № 1. − P.4-7.
- Ermolaeva V.A. Theoretical bases of process of crushing by manufacture of medical products // Engineering industry and life safety, 2011, № 2. − P.14-16.
- Bebneva S.I., Ermolaeva V.A. The problems of industrial process safety production of oxygen from the air // Advances in current natural sciences, 2011, № 7. − P.78.
«Engineering industry and life safety» №2 (16), 2013. Pages: 4-8
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Ermolaeva Vera Anatoljevna – Ph.D., Murom Institute of Vladimir State University, Murom, Russia. E-mail: ermolaevava2013@mail.ru
