Uneven heat generation and thermal performance of spindle bearings

Zhang, Yanfei; Li, Xiao Hu; Hong, Jun; Yan, Ke; Li, Sen

doi:10.1016/j.triboint.2018.04.035

Cited by 27 publications

(14 citation statements)

References 21 publications

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“…19, the radiation noise of the FCACBB varies greatly at different field points and the DL of the sound field directivity has significant change in both radial and axial directions. The attenuation of radiation noise (16) x = r cos Fig. 20 The SPL max of radiation noise at different field points Fig.…”

Section: Distribution Of Sound Field Of Fcacbbmentioning

confidence: 99%

“…Jiang et al [13][14][15] researched the variable optimum preload of the bearing utilizing the transfer matrix method and systematically discussed the dynamic characteristics of bearings. In addition, some researchers discussed the thermal characteristics of bearings, lubrication and air supply method [16][17][18][19][20] as well as the dynamic response with fault conditions [21][22][23][24]. However, the acoustic performance of bearings is rarely reported [25,26], and the structures and properties of ceramic bearings are few studies [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

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Research on sound field characteristics of full-ceramic angular contact ball bearing

Yan

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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This paper focuses on the distribution characteristics of the radiation noise for a full-ceramic angular contact ball bearing (FCACBB). A model for calculating the radiation noise of a FCACBB was established based on the bearing dynamic characteristics and sound radiation theory, and the effectiveness and accuracy of the method were verified by corresponding experiments. The variation of the radiation noise for a FCACBB with the rotational speed was analyzed. The directivity of the sound field in the circumferential direction was found. The variation trends of the radiation noise in the friction load zone and the impact load zone were discussed. The attenuation of the radiation noise in the radial direction and in the axial direction was investigated. The directivity angle and the degree of directivity of the sound field were explored at different radial and axial distances. The results show that the inhomogeneous contacts between the bearing components in the circumferential direction result in different degrees of friction and impact vibration at different locations, which makes the radiation noise of the FCACBB have a larger component in the radial direction than in the axial direction. The conclusions can provide a reference for predicting the radiation noise of FCACBBs and further optimizing the sound field.

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Section: Distribution Of Sound Field Of Fcacbbmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on sound field characteristics of full-ceramic angular contact ball bearing

Yan

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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“…Lorenz system parameters in equation (4) which according to a ¼ 28, b ¼ 10, and c ¼ 2:66, the chaotic attractors must be generated at this time. In order to make the dynamic error that was generated by the Lorenz chaotic system more clear and more accord with nonlinear, this paper adopts the fractional differential theory that is proposed by Gru¨nwald-Letnikov, and its relative dynamic error e can be presented by equation (5) D AEP e e m % Cðm þ 1Þ Cðm þ 1AEpÞ e mAEp (5) In equation (5), when p ¼ 1, the slope is in general definition, and the p value that is discussed in non-integral order is between 0 and 1, e is the dynamic error, and m is any real number. When integrating the definition of noninteger order into the Lorenz chaotic system, the dynamic error equation can be changed to present in non-integer order format, such as equations (6) and (7) d Àp dt Àp…”

Section: Vibration Suppression and Displacement Compensationmentioning

confidence: 99%

Intelligent integrated monitoring system for lathe equipment

Jian

Hsieh

Guo

2019

Journal of Low Frequency Noise, Vibration and Active Control

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During the production process of the components of precision machines, a stable quality is the key consideration of the vendors. During the production process of metal parts, a thermal expansion error of the spindle will occur due to long time operations, which causes machining errors during the production process. The chatter phenomenon that occurs during the production of components causes knife marks on the processing surface. Thus, chatter is also a major factor that affects the stability of quality. The occurrence of chatter phenomenon not only affects the quality of metal components, it also causes severe wear of the blade surface and shortens the life of the knife tool, and makes the cutting quality more difficult to control. Therefore, this paper uses the lathe machine to simulate the production process in the factory, to collect signals of the thermal expansion error of the spindle phenomenon and the coexistence of chatter, for timely compensation of the thermal expansion error and the development of the chatter suppression system, while spending extra efforts to implement real-time dynamic detection with the Lorenz chaotic system and applying spindle speed selection to control the chatter phenomenon, thus enhancing the processing quality and lengthening the longevity of the knife tool. As for the compensation of temperature, the system applies multi-regression analysis to detect the front and rear bearings of the spindle and room temperature and to compensate the error of the spindle in real time. The system takes real-time control of the chatter phenomenon and compensation of long-time thermal expansion error as its core architecture, while the secondary architecture combines the Internet of Things with Skymars to enable the machine to stabilize communication and to combine with heterogeneous machines such as robotic arm, milling machine, and grinding machine. It is a framework with horizontal development and establishes a database to record the critical value of the occurrence of chatter and implement two-time quality detection, achieving management of the production line, improvement of quality, and cloud information storage.

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“…Xi et al [10] presented a dynamic model of the spindle bearing system to investigate the dynamic responses of the machine tool spindle, and the simulated results of the proposed model were validated by experimental results. In addition, some researchers discussed the thermal characteristics of bearings, lubrication, and air supply method [11][12][13][14][15] as well as the dynamic response with fault conditions [16,17]. In recent years, researchers are interested in the acoustic characteristics of bearings, such as monitoring the bearing faults through acoustic signals [18,19] and calculating the radiation noise of ceramic bearings by the subsource decomposition method [20].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Factors on the Radiation Noise of High‐Speed Full Ceramic Angular Contact Ball Bearings

Yan

et al. 2018

Shock and Vibration

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Ceramic angular contact ball bearing is widely used in a high-speed motorised spindle because of their excellent properties such as wear resistance, high temperature resistance, and corrosion resistance. In this study, the characteristics and influencing factors of the radiation noise for a full ceramic angular contact ball bearing applied in the motorised spindle are investigated. Based on a single factor test method, the variations of bearing noise with preload, oil supply, and rotation speed were investigated, and then, the optimal preload and oil supply under the specific speed were obtained. The sound field directivity in the circumferential distribution of the bearing noise was discussed, and the reasons for the uneven distribution of the sound field were elucidated. According to the experimental results, a prediction model on the radiation noise of a full ceramic angular contact ball bearing under certain conditions was proposed. The conclusions will provide a reference for reducing the radiation noise of full ceramic angular contact ball bearings in high-speed operation and improving the bearing performance.

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Uneven heat generation and thermal performance of spindle bearings

Cited by 27 publications

References 21 publications

Research on sound field characteristics of full-ceramic angular contact ball bearing

Research on sound field characteristics of full-ceramic angular contact ball bearing

Intelligent integrated monitoring system for lathe equipment

The Effect of Factors on the Radiation Noise of High‐Speed Full Ceramic Angular Contact Ball Bearings

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