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空气弹簧模型对铁道车辆动力学性能的影响

, PP. 54-59

Keywords: 铁道车辆,空气弹簧,等效模型,线性模型,非线性模型,车辆平稳性,车辆安全性

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Abstract:

建立了空气弹簧等效模型、线性模型与非线性模型,分析了3种模型对车辆直线平稳性和曲线通过安全性的影响。研究结果表明在计算车辆直线垂向平稳性时,空气弹簧等效模型计算精度较差,而空气弹簧线性模型和非线性模型计算精度较高;由于空气弹簧线性模型比非线性模型简单,建议在计算直线垂向平稳性时优先采用空气弹簧线性模型;在计算车辆曲线通过安全性时,空气弹簧非线性模型能反映空气弹簧的充排气特性,计算精度较高;由于模型自身的局限性,空气弹簧线性模型和等效模型无法反映空气弹簧的充排气特性,计算精度较差,因此,建议在计算曲线通过安全性时采用空气弹簧非线性模型。

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