TY - JOUR
T1 - Research on nano-film composite lubricated triboelectric speed sensor for bearing skidding monitoring
AU - Li, Zhihao
AU - Wang, Xiaoli
AU - Fu, Tie
AU - Hu, Yanqiang
AU - Li, Lizhou
AU - Zhao, Zirui
AU - Wu, Liyan
AU - Wang, Chenfei
AU - Zhang, Shuaishuai
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/8
Y1 - 2023/8
N2 - Triboelectric speed sensors (TSS) have the advantage of easy integration to be used to monitor the bearing skidding. However, dry friction between materials can reduce the durability and stability of TSS and interfere with the operation of the cage. In this paper, BaTiO3/polyimide (BTO/PI) nanocomposite films and lubricants are introduced to triboelectric nanogenerator (TENG) and the effects of lubricant species and nanoparticles doping mass fraction on tribological and electrification performance are investigated. The results show that the TENG with squalane and BTO/PI nanocomposite film of 20 wt% has a lower friction coefficient and mass loss while higher output and stability. Then, the nano-film composite lubricated TSS (NFCL-TSS) integrated with bearing is constructed based on the rotary freestanding TENG (RF-TENG) with optimal nanocomposite film and squalene, where the signal processing circuit with wireless transmission is integrated on the back of RF-TENG stator to improve the integration of the sensing system. The results show that the NFCL-TSS has 84.81% lower mass loss, 95.26% and 97.75% higher electrical output and stability than that of the TSS with pure PI under dry conditions, respectively. Moreover, the cage speed before and after installation of NFCL-TSS remains mostly unchanged, and the error between the cage speed measured by NFCL-TSS and commercial sensor is below 0.26%. Finally, based on the bearing test platform, the monitoring of skidding is achieved by NFCL-TSS under different speeds and loads. This study provides a new strategy for the design of TSS with high durability, stability and integration.
AB - Triboelectric speed sensors (TSS) have the advantage of easy integration to be used to monitor the bearing skidding. However, dry friction between materials can reduce the durability and stability of TSS and interfere with the operation of the cage. In this paper, BaTiO3/polyimide (BTO/PI) nanocomposite films and lubricants are introduced to triboelectric nanogenerator (TENG) and the effects of lubricant species and nanoparticles doping mass fraction on tribological and electrification performance are investigated. The results show that the TENG with squalane and BTO/PI nanocomposite film of 20 wt% has a lower friction coefficient and mass loss while higher output and stability. Then, the nano-film composite lubricated TSS (NFCL-TSS) integrated with bearing is constructed based on the rotary freestanding TENG (RF-TENG) with optimal nanocomposite film and squalene, where the signal processing circuit with wireless transmission is integrated on the back of RF-TENG stator to improve the integration of the sensing system. The results show that the NFCL-TSS has 84.81% lower mass loss, 95.26% and 97.75% higher electrical output and stability than that of the TSS with pure PI under dry conditions, respectively. Moreover, the cage speed before and after installation of NFCL-TSS remains mostly unchanged, and the error between the cage speed measured by NFCL-TSS and commercial sensor is below 0.26%. Finally, based on the bearing test platform, the monitoring of skidding is achieved by NFCL-TSS under different speeds and loads. This study provides a new strategy for the design of TSS with high durability, stability and integration.
KW - Bearing skidding
KW - Composite lubrication
KW - Lubricant
KW - Nanocomposite films
KW - Triboelectric nanogenerator
KW - Triboelectric speed sensor
UR - http://www.scopus.com/inward/record.url?scp=85161673277&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2023.108591
DO - 10.1016/j.nanoen.2023.108591
M3 - Article
AN - SCOPUS:85161673277
SN - 2211-2855
VL - 113
JO - Nano Energy
JF - Nano Energy
M1 - 108591
ER -
