时变载荷激励的空调滑片式压缩机用球轴承振动特性分析

唐志霖1,蒋迪永2,张文虎1,邓四二1,胡余生3

振动与冲击 ›› 2023, Vol. 42 ›› Issue (1) : 169-180.

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PDF(4149 KB)
振动与冲击 ›› 2023, Vol. 42 ›› Issue (1) : 169-180.
论文

时变载荷激励的空调滑片式压缩机用球轴承振动特性分析

  • 唐志霖1,蒋迪永2,张文虎1,邓四二1,胡余生3
作者信息 +

Vibration characteristics of ball bearing for air conditioning sliding vane compressor excited by time-varying load

  • TANG Zhilin1, JIANG Diyong2, ZHANG Wenhu1, DENG Sier1, HU Yusheng3
Author information +
文章历史 +

摘要

基于滚动轴承动力学理论,建立了时变载荷激励的空调滑片式压缩机用球轴承非线性动力学方程组,采用Gear Stiff(GSTIFF)变步长积分算法对其进行求解,就球轴承的结构参数和工况参数对球轴承振动特性的影响进行了分析。结果表明:时变载荷激励下球轴承的振动响应频率以时变载荷频率为主,表现出强迫振动,且振动速度幅值远高于恒定载荷下轴承振动速度幅值;结构参数中,原始径向游隙对球轴承振动特性影响显著,采取零游隙或负游隙能够有效地抑制时变载荷对轴承的冲击;保持架兜孔间隙对轴承振动影响较小,存在最优的保持架兜孔间隙使得保持架振动最小;考虑时变载荷的影响,对空调滑片式压缩机用球轴承施加0.3~0.6%额定动载荷的轴向预紧力可实现降低轴承振动目的。

Abstract

Based on the theory of rolling bearing dynamics, the nonlinear dynamic equations of ball bearing for air-conditioning vane compressor excited by time-varying load were established, and were solved by the Gear Stiff (GSTIFF) variable step integral algorithm. Then, analyzed the effects of structural parameters and working conditions on the vibration characteristics of the ball bearing. The results show that: under time-varying load, the vibration response frequency of the ball bearing is dominated by the time-varying load frequency, which shows forced vibration, and the vibration velocity amplitude is much higher than that under constant load. Among the structural parameters, the original radial clearances significantly effect on the vibration characteristics of the ball bearing, and adopting zero clearance or negative clearance can effectively suppress the impact of time-varying load on the bearing. The cage pocket clearance has little effect on bearing vibration, and there is an optimal cage pocket clearance to minimize cage vibration. Considering the effects of time-varying load, applying an axial preload of 0.3-0.6% dynamic load rating to the ball bearing can achieve the purpose of reducing bearing vibration.

关键词

空调滑片式压缩机 / 深沟球轴承 / 时变载荷 / 振动 / 非线性动力学

Key words

air-conditioning vane compressor / deep groove ball bearing / Time-varying load / Vibration / non-linear dynamics?

引用本文

导出引用
唐志霖1,蒋迪永2,张文虎1,邓四二1,胡余生3. 时变载荷激励的空调滑片式压缩机用球轴承振动特性分析[J]. 振动与冲击, 2023, 42(1): 169-180
TANG Zhilin1, JIANG Diyong2, ZHANG Wenhu1, DENG Sier1, HU Yusheng3. Vibration characteristics of ball bearing for air conditioning sliding vane compressor excited by time-varying load[J]. Journal of Vibration and Shock, 2023, 42(1): 169-180

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