CAJ | 학술논문

以某重型汽车动力总成悬置系统为研究对象，从理论上分析动力总成悬置的隔振原理及设计的基本原则，通过仿真计算与实车试验相结合研究重型汽车常见的4点悬置与4+2点悬置布置型式对动力总成刚体模态频率分布、各阶模态解耦、悬置在各工况时的隔振效率及驾驶室内关键点振动的影响。结果表明：4点悬置布置型式在车辆行驶于良好路面时均表现出较好的性能，但当路面状况差时，为有效缓减路面冲击应该考虑采用4+2点悬置布置型式。
이모중형기차동력총성현치계통위연구대상，종이론상분석동력총성현치적격진원리급설계적기본원칙，통과방진계산여실차시험상결합연구중형기차상견적4점현치여4+2점현치포치형식대동력총성강체모태빈솔분포、각계모태해우、현치재각공황시적격진효솔급가사실내관건점진동적영향。결과표명：4점현치포치형식재차량행사우량호로면시균표현출교호적성능，단당로면상황차시，위유효완감로면충격응해고필채용4+2점현치포치형식。
The powertrain mount system of a heavy-duty truck is studied. The vibration isolation principle of the system and the fundamental principle for design are analyzed theoretically. Furthermore, through the numerical simulation and real testing of the vehicle, the frequency distribution of the rigid-body modal of the powertrain, energy decoupling degrees of modals of different orders, the vibration isolation rate of the powertrain mount and the vibration RMS values at some key points in the cab, are studied respectively for 4 point suspension and 4+2 point suspension arrangements of the truck’s powertrain. The results show that the 4 point suspension arrangement is better for the vehicle traveling on a nice even road than the other. However, the 4+2 point suspension arrangement is recommended for vibration reduction of the vehicles traveling on poor uneven roads.