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Information × Registration Number 0215U002444, 0114U001777 , R & D reports Title Improving the efficiency of the use of centrifugal fire pumps and their reliability rating of vibration diagnostics of technical state popup.stage_title Head Kyryliv Yaroslav Bogdanovych, Registration Date 09-12-2015 Organization L'viv Fire State University of Vital Activity Safety popup.description2 Report on the research work: 178 p., 82 fig., 11 tab., 96 sources. The object of the study are vibrating processes accompanying work of centrifugal fire pumps including internal injuries, determining the reliability and efficiency of their work. The aim is to develop a means of improving the reliability and efficiency of centrifugal fire pumps, through the development of methods and approaches of vibrating diagnosing their technical condition. Research methods included mathematical modeling of vibrations of the centrifugal fire pump with defects that have been conducted on the basis of the theory of vibrations and the method of finite elements using modern software of three-dimensional computer modeling. Scientific novelty of the results: for the first time to study the effect of the current technical condition of centrifugal fire pumps on the effectiveness of their use in fire suppression; proposed new mathematical model, in contrast to the existing state of vibration described enable the centrifugal fire pump during operation, including pumps having internal defects of various types; the regularities between the parameters of vibration condition of pumps in operation and their technical condition and performance indicators used during fire suppression; won the further development of the information content of vibro-diagnostic signs of a technical condition of centrifugal fire pumps formed on the basis of comprehensive theoretical and experimental studies, allows to determine the level of maintenance of the pump, the type, nature and extent of the available latent defect. The practical significance of the results: On the basis of the results suggested the following methods and approaches that have practical value: approach to diagnosing the technical condition of centrifugal fire pumps PN-40, which can increase their reliability and service life thanks to the timely detection of faults and predict further development; method of diagnosing technical condition, suitable for wide application in practice of manual pumps PN-40 in terms of rescue units; approach to the determination of the efficacy of centrifugal pumps during fire suppression different types depending on the technical condition of the pump, which is defined vibration characteristics. Key words: centrifugal fire pump, the effectiveness of fire-fighting equipment, reliability, technical condition, vibration diagnostics. Product Description popup.authors Ущапiвський Iгор Любомирович popup.nrat_date 2020-04-02 Close