Dynamic analysis of diesel generator set under cylinder deactivation

Jishnu Kavil Kambrath, Ayu Aaron Alexander, Youyi Wang, Y. Yoon, Xiong Liu, Gary Wilson, Chandhana Jayampathi Gajanayake, A. Gupta
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引用次数: 1

Abstract

Cylinder deactivation in diesel engine is proposed in the industry, where under part load condition engine cylinders will be deactivated, leading to less fuel consumption, losses and less emission. But the main bottle neck for such deactivation process is excitation of mechanical systems which affects the reliability of sensitive mechanical components. Hence the investigation of cylinder deactivation condition with components modelled with sufficient accuracy will be beneficial for the design of the system. The diesel engine generator system can be simplified as a 7 inertia-6 stiffness system. The mechanical driveline system subjected to engine cylinder deactivation have torsional stresses developed between individual components. An electrical control solution is developed to alleviate torsional stresses. The proposed solution damps the torsional oscillation and hence improves the reliability of the system under engine transients.
汽缸停用时柴油发电机组的动态分析
柴油机汽缸停用是工业上提出的一种方案,在柴油机部分负荷工况下,柴油机汽缸将被停用,从而减少燃油消耗、损耗和排放。但这种失活过程的主要瓶颈是机械系统的激励,它会影响敏感机械部件的可靠性。因此,在对各部件进行足够精确建模的情况下,对汽缸失活工况进行研究,将有利于系统的设计。柴油机发电机系统可简化为7惯量-6刚度系统。机械传动系统在发动机汽缸失活时,各个部件之间产生了扭转应力。开发了一种电气控制解决方案来减轻扭转应力。该方法有效地抑制了系统的扭振,提高了系统在发动机瞬态下的可靠性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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