The article presents a new method for forecasting the durability of the piston-ring-cylinder (PRC) system of an internal combustion engine based on observed changes in the physicochemical properties of used engine oil. Previously used methods for assessing the durability of the PRC assembly required collecting information on the moments when the system reached its limit state, or used wear kinetics models developed based on accelerated tests of real objects. In the proposed method, information derived from tests of oil used in the engine is used to assess the durability of the engine cylinder liners.Diagnostic systems used in modern internal combustion engines are intended to locate a component or system that, due to natural wear or damage, can no longer perform its function. Increasing requirements regarding the durability and reliability of internal combustion engines, as well as the minimization of costs and adverse environmental impact, make it necessary to obtain information about their condition during operation [8, 9, 10].
One of the directions for seeking diagnostic information is monitoring the level of vibrations generated by engine components. An internal combustion engine is an object subject to internal and external forces. (…)
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Source: Logistyka Magazine