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首页> 外文期刊>Journal of vibration and control: JVC >Numerical investigations into shift transients of a dual clutch transmission equipped powertrains with multiple nonlinearities
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Numerical investigations into shift transients of a dual clutch transmission equipped powertrains with multiple nonlinearities

机译：装备有多个非线性的双离合器变速器动力总成的换档瞬态数值研究

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The purpose of this paper is to numerically investigate the influence of nonlinearities applied to vehicle powertrains equipped with a dual clutch transmission, including gear backlash, dual mass flywheel hysteresis, and torque pulses from the engine. To achieve this goal, a multi-body dynamic model of such a powertrain is constructed for transient vibration studies. Incorporated into this model is a combination of two nonlinear contact backlash models: for gear pairs a line-of-action force contact model is used to represent backlash in the mesh, and, for engaged synchronizer dog gears, a torsional nonlinear contact model is applied. This powertrain model is then used to study the response to shift transients under different conditions, including with and without engine torque harmonics, the variation of mesh damping and tooth clearance, and the impact of torsional vibration absorbers. Simulation results demonstrate that engine torque harmonics, mesh clearance, and external damping sources have a significant impact on duration of excitation, while the impact of mesh damping is less significant.
机译：本文的目的是数值研究非线性对应用于配备双离合器变速器的车辆动力总成的影响，包括齿轮间隙，双质量飞轮磁滞和来自发动机的扭矩脉冲。为了实现这一目标，构建了这种动力总成的多体动力学模型用于瞬态振动研究。结合到该模型中的是两个非线性接触齿隙模型的组合：对于齿轮对，使用作用力线接触模型来表示啮合中的齿隙，对于啮合的同步器齿形齿轮，则应用扭转非线性接触模型。 。然后，使用该动力总成模型研究在不同条件下对换档瞬态的响应，包括有无发动机转矩谐波，啮合阻尼和齿隙的变化以及扭转减振器的影响。仿真结果表明，发动机转矩谐波，啮合间隙和外部阻尼源对励磁持续时间有显着影响，而网格阻尼的影响则较小。

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