TY - GEN
T1 - Vibration damping in automotive driveshafts with piezofiber composite structures
AU - Lee, Jae Mun
AU - Lee, Chul Hee
AU - Choi, Seung Bok
PY - 2008
Y1 - 2008
N2 - This paper presents a solution of the vibration reduction in driving automotive shafts. Generally, vibration modes in automotive driveshafts are divided into the bending and torsional vibrations. However, the bending vibration is more dominant factor when it excites with the resonance frequencies in automotive driveshafts. In this paper, the vibration damping structure of automotive driveshaft is introduced by incorporating piezofiber composite structure, which is also called as MFC (Macro Fiber Composite). The MFC is an innovative actuator that offers high performance and flexibility than other piezo-materials, so it is the best candidate of actuator to apply to the curved surface of shaft. In order to simulate the bending vibration reduction in the automotive shaft, analytical model based on cylindrical shell theory was developed. Moreover, Finite Element Analysis (FEA) using the piezoelectric-thermal analogy technique was conducted to confirm the analytical results and demonstrate the vibration reduction performance. The effect by the polarity of MFC on the vibration damping is also studied to find the best combination of MFC activation. Thus, the results showcase the optimal vibration damping capabilities using MFC in automotive driveshafts, and provide an outlook for the active damping control using the multi-mode resonance controllers.
AB - This paper presents a solution of the vibration reduction in driving automotive shafts. Generally, vibration modes in automotive driveshafts are divided into the bending and torsional vibrations. However, the bending vibration is more dominant factor when it excites with the resonance frequencies in automotive driveshafts. In this paper, the vibration damping structure of automotive driveshaft is introduced by incorporating piezofiber composite structure, which is also called as MFC (Macro Fiber Composite). The MFC is an innovative actuator that offers high performance and flexibility than other piezo-materials, so it is the best candidate of actuator to apply to the curved surface of shaft. In order to simulate the bending vibration reduction in the automotive shaft, analytical model based on cylindrical shell theory was developed. Moreover, Finite Element Analysis (FEA) using the piezoelectric-thermal analogy technique was conducted to confirm the analytical results and demonstrate the vibration reduction performance. The effect by the polarity of MFC on the vibration damping is also studied to find the best combination of MFC activation. Thus, the results showcase the optimal vibration damping capabilities using MFC in automotive driveshafts, and provide an outlook for the active damping control using the multi-mode resonance controllers.
KW - Automotive driveshafts
KW - Cylindrical shells
KW - Piezofiber composite actuator
KW - Vibration damping
UR - http://www.scopus.com/inward/record.url?scp=56349156943&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:56349156943
SN - 0878493786
SN - 9780878493784
T3 - Advanced Materials Research
SP - 222
EP - 225
BT - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PB - Trans Tech Publications
T2 - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
Y2 - 28 July 2008 through 31 July 2008
ER -