Research for the bearing fit effect on the vibration characteristics of spindle rotor-bearing system

Wang, Zhan; Chen, Siyang; He, Wenzhi; Wang, Zinan; Xia, Zhongxian

doi:10.1007/s12206-023-1104-3

J Mech Sci Technol

2023

DOI: 10.1007/s12206-023-1104-3

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Research for the bearing fit effect on the vibration characteristics of spindle rotor-bearing system

Zhan Wang,

Siyang Chen,

Wenzhi He

et al.

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2024

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Cited by 3 publications

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Modelling and testing of the dynamic support stiffness of assembled bearings in motorized spindles

Tian,

Wang,

Zhao

et al. 2024

J Mech Sci Technol

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Modelling and testing of the dynamic support stiffness of assembled bearings in motorized spindles

Tian,

Wang,

Zhao

et al. 2024

J Mech Sci Technol

View full text Add to dashboard Cite

Analysis of vibration characteristics of ship propeller spindle

Li,

Du,

Tian

2024

Vib. proced.

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In order to obtain the vibration response characteristics of the propeller spindle system effectively and accurately, and provide the basis for the subsequent fault diagnosis, the modal simulation and test of the spindle model were carried out. With the propeller set as eccentric mass, the amplitude and torsion angle of the spindle model were simulated under the condition of excited vibration and unexcited vibration respectively, and the frequency response of bending and torsion under the coupled condition was obtained. The newmark-β method was used to solve the transient response of the bent-torsional coupling model. The results shows that when the propeller spindle system undergoes rotation at a specific frequency and experiences bending vibration excitation force, the latter will induce torsional vibration response. Moreover, the amplitude of the torsional vibration response varies with changes in the frequency of the bending vibration excitation force.

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Application of the Finite Element Method for Analyzing the Vibration Characteristics of a Spindle System and Fault Diagnosis

Zhang,

Wang

2024

Symmetry

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The performance of a spindle will gradually decline, the vibration intensity will increase, and the temperature rise will become abnormal with the accumulation of service time. Consequently, the accuracy of the machining product will not meet its production requirements. Studies on the variation characteristics of the spindle unit have clarified the reasons for its abnormal vibration and temperature rise, in principle, to help enterprises conduct preventive maintenance before any serious failure occurs and improve production efficiency. Based on the Timoshenko beam model and rotor dynamics theory, this study uses the finite element method (FEM) to analyze the vibration characteristics of the spindle rotor system. Moreover, it thoroughly analyzes the influence of the spindle bearing heat on the stiffness of the spindle system and identifies the resonance conditions of the spindle rotor within the power frequency range. This research has identified that when the vibration frequency of the spindle operates at a speed of 12,000 r/min, if its vibration frequency is lower than 200 Hz, it will be affected by abnormal vibrations during startup, which will weaken the health status of the spindle and reduce its service life. Similarly, when the working speed of the spindle is 30,000 r/min, if its vibration frequency is lower than 50 Hz, abnormal vibration will occur during startup and operation, thereby reducing its service life.

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Research for the bearing fit effect on the vibration characteristics of spindle rotor-bearing system

Cited by 3 publications

References 18 publications

Modelling and testing of the dynamic support stiffness of assembled bearings in motorized spindles

Modelling and testing of the dynamic support stiffness of assembled bearings in motorized spindles

Analysis of vibration characteristics of ship propeller spindle

Application of the Finite Element Method for Analyzing the Vibration Characteristics of a Spindle System and Fault Diagnosis

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