CAJ | 학술논문

大功率柴油机产生的宽频带振动，双层隔振系统具有良好的高频隔振能力，已在船舶等领域得到了应用。但在中、高速柴油机的内燃机车等领域，国内对于双层隔振系统的应用研究很少。结合国内首次研制的某型内燃动车动力总成系统，对双层隔振系统的隔振性能进行了仿真和实验研究。首先采用理论计算和实验识别结合的方法确定了作用在柴油发电机组上的激振力（矩）特性；然后建立了双层隔振系统多体动力学模型，通过仿真计算，求得了理论力传递率；最后进行了双层隔振系统力传递率测试，获得了双层隔振系统实际力传递率，其力传递率明显低于单层隔振系统。对于双层隔振系统设计和工程应用有一定的参考。
대공솔시유궤산생적관빈대진동，쌍층격진계통구유량호적고빈격진능력，이재선박등영역득도료응용。단재중、고속시유궤적내연궤차등영역，국내대우쌍층격진계통적응용연구흔소。결합국내수차연제적모형내연동차동력총성계통，대쌍층격진계통적격진성능진행료방진화실험연구。수선채용이론계산화실험식별결합적방법학정료작용재시유발전궤조상적격진력（구）특성；연후건립료쌍층격진계통다체동역학모형，통과방진계산，구득료이론력전체솔；최후진행료쌍층격진계통력전체솔측시，획득료쌍층격진계통실제력전체솔，기력전체솔명현저우단층격진계통。대우쌍층격진계통설계화공정응용유일정적삼고。
For broadband excitation sources of high-power diesel engines, the double-layer vibration isolation system has a good high-frequency vibration isolation performance. It has already been applied to various fields such as shipbuilding. However, application of the above-mentioned system to locomotives with medium or high speed diesel engines has not essentially been studied in China. In this work, based on the DMU powertrain system developed in China, simulation and experimental study of the vibration isolation performance of the system are done. First of all, the characteristics of the exciting force (torque) acting on the diesel generator set are determined through theoretical calculation and experiment identification. Then, a multi-body dynamics model of the double-layer vibration isolation system is built, and the theoretical force transfer rate is obtained through the simulation. Finally, the actual force transfer rate is tested and proved to be significantly lower than the single-layer vibration isolation system. The above work has a guiding significance for the design and engineering application of double-layer vibration isolation systems.