Analytical Techniques for Engine Structure Simulation Using Prediction of Radiated Noise of Diesel Engine with Changing Combustion Excitation

Paper #:
  • 2017-01-1802

Published:
  • 2017-06-05
Abstract:
Classical approaches to development require a lot of time and cost to make samples involved the major design factors, which is why there have been recent researches to improve the efficiency of the development through a variety of simulation techniques. NVH simulation is of importance in this advanced phase, the design of all the parts should be satisfactory from the NVH point of view during the first phase of the project. This paper presents such an approach of simulation for the prediction radiated noise from a diesel engine with integrated powertrain model with changing combustion excitation. For changing combustion excitation, the cylinder pressure is measured and used as an input for simulation. The simulation model is validated with comparing the result of experiment in specified frequency ranges that the level of the noise is made louder than the development target. It can be realized to design the robust engine structure with less expense and short time of prediction of engine structure simulation.
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