Research on sound field characteristics of full-ceramic angular contact ball bearing
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(2020) 42:311
TECHNICAL PAPER
Research on sound field characteristics of full‑ceramic angular contact ball bearing Haipeng Yan1,2,3 · Yuhou Wu1,2 · Songhua Li1,2 · Lixiu Zhang1,2 · Ke Zhang1,2 Received: 9 December 2018 / Accepted: 18 March 2020 © The Brazilian Society of Mechanical Sciences and Engineering 2020
Abstract 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. Keywords Ceramic bearing · Sound radiation · Sound field · Directivity · Distribution characteristics
1 Introduction Angular contact bearings are widely used in high-speed applications, which can withstand large unidirectional axial loads. However, with the progress of science and technology, greenness, intellectualization and high reliability has become the goal of customers and is also the development trend of bearings. Bearing plays an important role in the equipment. The failure of bearings during the working will affect the accuracy of mechanical system, and even more serious consequences will occur [1]. Compared with steel Technical Editor: Wallace Moreira Bessa, D.Sc. * Yuhou Wu [email protected] 1
School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
2
National-Local Joint Engineering Laboratory of NC Machining Equipment and Technology of High-Grade Stone, Shenyang 110168, China
3
School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhang 050018, China
bearings, ceramic bearings have better wear resistance and higher thermal stability [2, 3], so their operation accuracy and reliability are also higher, bringing to a wide application in the fields of high technology. About the performance analysis of high-speed angular contact ball bearings, currently, there are five types of dynamic analytical models f
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