Другие журналы
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Kiselev
77-30569/252086 THE TECHNOSPHERE AND BUILDING SCIENCE AND PRACTICE OBJECTS METROLOGICAL MAINTENANCE PROBLEMS
Engineering Education # 12, December 2011 In article geotechnical reliability and safety maintenance results of responsible industrial targets, oil and gas pipelines, ecologically dangerous undertakings and areas of mass building, including a megacities technosphere are presented, became most an acute problem of a planet vital regions safety. Even in seismopassive areas a microseismic and microgravitational excitation intensity planet strengthening of industrial targets and the engineering constructions geodynamic resonances accelerating their geotechnical reliability degradation is observed. Now the building branch is not provided by necessary metrological maintenance and, as consequence, corresponding standard maintenance of control not only a current condition of building objects and materials, but also reasons detection of the postponed failures, decrease speeds in the major characteristics of building materials, products and assembly knots for all period of operation. The exit from the become frequent technical failures strip can be provided thanks to domestic scientific potential, information-metrological maintenance of a technosphere objects full life cycle.
Quickly proceeding transitive modes of functioning turbine dtive shaft of the powerful turbine unit
Engineering Education # 05, May 2011 The article contains research results of transients into turbine shafts of power turbine units of thermal power station and a state district power station made with a help of new phase-chronometric method using precision measurements with the relative error no more than 5∙10-4 on industrial frequency. The acceptability of a method is also regarded in respect of turbine units diagnostics. The researches have been executed on two types turbine units Т-250 and Т-200. There are shown in details the results of transients registration at generator switching in an external network and switching off it, influencing weariness accumulation in turbine shaft metal. There is also presented an influence of impulses from an internal network on a turbine shaft rotation mode, not be registering by regular equipment of thermal power station. The turbine shaft twisting fluctuations spectra of turbine units are presented
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