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In this paper, the combination resonance of a spinning composite shaft with geometric nonlinearity is studied by the method of harmonic balance. The full equations of motion containing the flexural–flexural–extensional–torsional coupling are employed for the analysis. The equations were discretized by both one and two modes, so two different forms of combination resonances can be analyzed. The shear...
In the present work a simple technique for determining the burning duration in SI engines has been presented. This method is based on entropy calculation during the burning process of engine. This method has been tested successfully by means of pressure–crank angle data obtained from CFR engine at different operating conditions and then it has been applied on XU7 engine. The comparison between theoretical...
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