论文部分内容阅读
动力总成悬置系统对汽车的NVH性能有重要影响,本文论述了汽车动力总成悬置系统中的橡胶悬置、液阻悬置、半主动悬置和主动悬置的静态、动态特性,探讨了动力总成悬置系统隔振设计方法及隔振设计的5个方面(建模;振动频率和解耦率的优化;动力总成的位移控制;低频大振幅激励下,动力总成的振动控制;隔离发动机的激励传递给车身或副车架),从而降低转向盘的振动和减少车内噪声。
Powertrain mounting system has an important impact on the NVH performance of the vehicle. This paper discusses the static and dynamic characteristics of the rubber suspension, the hydraulic resistance suspension, the semi-active suspension and the active suspension in the automotive powertrain mounting system, The five aspects of vibration isolation design and vibration isolation design of powertrain mounting system are discussed (modeling; optimization of vibration frequency and decoupling ratio; displacement control of powertrain; excitation of powertrain Vibration control; isolated engine excitation transmitted to the body or subframe), thereby reducing the vibration of the steering wheel and reduce noise in the car.