The load of diesel generator set used for degaussing is a decreasing pulse torque. Suddenly loading and unloading proposes higher requirement to the generator set. In this paper, the shafting dynamic characteristics under diesel output torque and pulse torque is analyzed through theory analysis model and virtual prototyping model. Through comparing the analysis results, the model is validated to be right and some useful conclusions are obtained, which lays a good foundation to the further optimization for generator set.%消磁用柴油发电机组的负载是一递减的脉冲扭矩,突加突减的负载给机组的设计提出了更高的要求.本文通过理论分析模型和虚拟样机模型分别对机组轴系在柴油机输出扭矩和脉冲扭矩下的动态特性进行分析.通过比较分析结果,在验证模型正确性的同时,也得出了许多有用的结论,为机组进一步优化设计打下了基础.
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