A Computer System for Reliable Operation of a Diesel Generator on the Basis of Indirect Measurement Data Processing
International Conference on Reliable Systems Engineering (ICoRSE) - 2022(2022)
Abstract
Algorithmic software for monitoring the cylinder power of a diesel generator based on the processing of indirect measurement data has been developed. The instantaneous speed of the crankshaft is used as input information. The kinematic scheme of the engine is given by a mechanical system with four degrees of freedom, subject to friction. The motions of the model masses are described by a system of differential equations, the parameters of which are normalized on the basis of the methods of similarity theory. The Laplace transform under zero initial conditions as a mathematical apparatus is applied. The method of determinants was used to establish information connections between the torques of the cylinders and the signal of the measuring information. In the Matlab software environment with the Simulink extension, a scheme of computer simulation of the signal of fluctuations of the speed of rotation of the first mass is built. The method of adjusting the length of information links between its components is used to adjust the parameters of the scheme. The information technology of monitoring of cylinder powers is developed for frequency representation of a signal of fluctuations, transfer functions and the approximated torques of cylinders. The least squares method is used to minimize the incoherence of the system of algebraic equations. Additive random interference is used in computer simulation of the procedure for solving the system of equations. Requirements for metrological characteristics of the measuring transducer of the frequency-modulated signal of the crankshaft speed are formed.
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Key words
Computer system, Information technology, Software, Mathematical and computer modeling, Metrological characteristics, Fluctuation signal
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