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This paper presents a diagnostic methodology for faults and combustion irregularities on internal combustion engines based on mechanical vibrations and acoustic emissions measurements. The purpose is to apply time-frequency techniques, such as envelope analysis and order tracking, to signals from an internal combustion spark ignited engine, to identify different operating conditions (angle advance)...
Category (3). This paper shows the validation of gear damage mathematical modeling using mechanical vibration analysis. It shows how the gear failures are simulated in MATLAB environment and compared with the mechanical vibrations signals taken from a two-steps gear casing test bed. In comparison, spectral analysis is realized. The first part of the paper presents the mathematical modeling of gear...
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