Multiple frequency vibration of the micro lubricating gap geometry between cylinder block and valve plate in an axial piston pump

被引：2

作者：

Zhang, Zhiqiang ^{[1
,2
]}

Chen, Yuanyuan ^{[1
]}

Song, Jianli ^{[3
,4
]}

Jin, Kunshan ^{[2
]}

Zhou, Haibo ^{[4
]}

机构：

[1] Taiyuan Univ Sci & Technol, Sch Mech Engn, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Sci & Technol, Shanxi Key Lab Metall Mat Forming Theory & Techno, Taiyuan 030024, Peoples R China

[3] Beijing Informat Sci & Technol Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100192, Peoples R China

[4] Cent South Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Peoples R China

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2021年 / 35卷 / 11期

关键词：

Axial piston pump; Valve plate; Wedge angle; Azimuth angle; Multiple frequency vibration; FILM THICKNESS; TEMPERATURE; DYNAMICS; BEARING;

D O I：

10.1007/s12206-021-1003-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Refined models of the forces in the cylinder block/valve plate system along Z axis and the moments around X and Y axes were built, considering the pressure ripple due to the piston reciprocating motions (PRM) and pressure variations in the wedge film (PVF) and the chambers (PVC) caused by the silencing slots. The multi-frequency vibration models of the gap geometry owing to the forces and moments are proposed. The dynamic mechanical balance equations are presented. The frequency spectra of the test gap thickness show the vibration amplitudes at the first three frequencies are larger than those of the other frequencies. PVF and PVC have obvious influences on the gap at the second frequency, and PRM exerts an impact at the third. The moment fluctuations around X and Y axes, bending stiffness of the shaft, and the rough surfaces contact could affect the vibration amplitude of the wedge gap geometry.

引用

页码：4835 / 4848

页数：14

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