加速度对涡轮增压器球轴承-转子系统动力学特性的影响

黄 若;张威力;姜雅力;邢卫东

振动与冲击 ›› 2014, Vol. 33 ›› Issue (11) : 136-141.

PDF(2596 KB)
PDF(2596 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (11) : 136-141.
论文

加速度对涡轮增压器球轴承-转子系统动力学特性的影响

  • 黄 若1,张威力1,姜雅力1,邢卫东2
作者信息 +

Acceleration’s influence on ball bearing turbocharger rotor dynamics

  • HUANG Ruo 1,ZHANG Wei-li 1,JIANG Ya-li 1,XING Wei-dong2
Author information +
文章历史 +

摘要

车用涡轮增压器转子系统具有高速、轻载荷、大柔性、小尺寸、多激励、变工况特点,球轴承涡轮增压器轴承-转子系统转速会在较大范围内频繁变动。针对某型号车用球轴承涡轮增压器,建立考虑了密封结构和气流激振的球轴承涡轮增压器转子动力学模型,分析了不同加(减)速度下的球轴承涡轮增压器转子瞬态响应影响规律,并与该转子系统临界转速、稳态响应及临界转速实验结果进行对比分析,结果表明:球轴承涡轮增压器一阶临界转速随加(减)速度增大而减小,二阶临界转速随加(减)速度增大而增大;加(减)速下的球轴承涡轮增压器转子振幅在临界转速附近随加(减)速度增大而增大,非临界转速范围内变化不大。

Abstract

The characteristics of vehicular turbocharger, namely, ultra speed, light load, great flexibility, multi excitations and various working conditions, determine the frequent change of speed in a relatively wide range of the bearing-rotor system. A rotor model considering seal structure and gas-exciting force was established based on a certain mode of vehicular turbocharger. The transient responses of the bearing-rotor system in different values of acceleration and deceleration were achieved and compared with numerical and experimental calculations of critical speed and steady-state response of the vehicular turbocharger's ball bearing-rotor system. Results showed that the first order critical speed decreases and the second order critical speed increases with the raise of acceleration (deceleration) of ball bearing turbocharger. Amplitude of ball bearing vehicular turbocharger rotating near critical speeds increases as the acceleration (deceleration) raises , while amplitude varies little beyond the near range of critical speeds.

关键词

涡轮增压器 / 转子动力学 / 加速 / 减速 / 瞬态响应

Key words

turbocharger / rotor dynamics / acceleration / deceleration / transient response

引用本文

导出引用
黄 若;张威力;姜雅力;邢卫东. 加速度对涡轮增压器球轴承-转子系统动力学特性的影响[J]. 振动与冲击, 2014, 33(11): 136-141
HUANG Ruo;ZHANG Wei-li;JIANG Ya-li;XING Wei-dong. Acceleration’s influence on ball bearing turbocharger rotor dynamics[J]. Journal of Vibration and Shock, 2014, 33(11): 136-141

PDF(2596 KB)

Accesses

Citation

Detail

段落导航
相关文章

/