Abstract
The development of a system for supplying working fluid (engine oil) to ensure the similarity of operating conditions of a model of a spring damper for torsional vibrations of a marine diesel engine during experiments at the laboratory stand of the Marine Technology Service testing center of the Astrakhan State Technical University is considered. Currently, spring (mechanical) torsional vibration dampers of marine diesel engines are produced only by foreign companies. A lot of scientific work is required for their design, manufacture and operation, including physical modeling of the design and operating conditions of laboratory versions of dampers. The application of the physical modeling method makes it possible to reduce the cost of testing real spring dampers of torsional vibrations of marine diesel engines, determine the main dependencies of damping parameters on various operating conditions, develop basic criteria for non-selective diagnostics to assess its technical condition and predict the development of emergency situations. The modernization of the laboratory stand is necessary for the operation of model spring dampers with a developed system for supplying working fluid. The spread of spring dampers is justified by the design features of such devices, which allows the use of both elastic and hydraulic damping. For the development of the working fluid supply system, calculations were made of the stiffness and thermal power of the model spring damper, taking into account the design of the laboratory stand.
Published Version
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