TY - JOUR
T1 - Dynamic analysis of a helical gear reduction by experimental and numerical methods
AU - Liu, Chao
AU - Fang, Zongde
AU - Guo, Fang
AU - Xiang, Long
AU - Guan, Yabin
AU - Du, Jinfu
N1 - Publisher Copyright:
© 2019 Institute of Noise Control Engineering.
PY - 2020/2
Y1 - 2020/2
N2 - Presented in this study is investigation of dynamic behavior of a helical gear reduction by experimental and numerical methods. A closed-loop test rig is designed to measure vibrations of the example system, and the basic principle as well as relevant signal processing method is introduced. A hybrid user-defined element model is established to predict relative vibration acceleration at the gear mesh in a direction normal to contact surfaces. The other two numerical models are also constructed by lumped mass method and contact FEM to compare with the previous model in terms of dynamic responses of the system. First, the experiment data demonstrate that the loaded transmission error calculated by LTCA method is generally acceptable and that the assumption ignoring the tooth backlash is valid under the conditions of large loads. Second, under the common operating conditions, the system vibrations obtained by the experimental and numerical methods primarily occur at the first fourth-order meshing frequencies and that the maximum vibration amplitude, for each method, appears on the fourth-order meshing frequency. Moreover, root-mean-square (RMS) value of the acceleration increases with the increasing loads. Finally, according to the comparison of the simulation results, the variation tendencies of the RMS value along with input rotational speed agreewell and that the frequencies where the resonances occur keep coincident generally. With summaries of merit and demerit, application of each numericalmethod is suggested for dynamic analysis of cylindrical gear system,which aids designers for desirable dynamic behavior of the system and better solutions to engineering problems.
AB - Presented in this study is investigation of dynamic behavior of a helical gear reduction by experimental and numerical methods. A closed-loop test rig is designed to measure vibrations of the example system, and the basic principle as well as relevant signal processing method is introduced. A hybrid user-defined element model is established to predict relative vibration acceleration at the gear mesh in a direction normal to contact surfaces. The other two numerical models are also constructed by lumped mass method and contact FEM to compare with the previous model in terms of dynamic responses of the system. First, the experiment data demonstrate that the loaded transmission error calculated by LTCA method is generally acceptable and that the assumption ignoring the tooth backlash is valid under the conditions of large loads. Second, under the common operating conditions, the system vibrations obtained by the experimental and numerical methods primarily occur at the first fourth-order meshing frequencies and that the maximum vibration amplitude, for each method, appears on the fourth-order meshing frequency. Moreover, root-mean-square (RMS) value of the acceleration increases with the increasing loads. Finally, according to the comparison of the simulation results, the variation tendencies of the RMS value along with input rotational speed agreewell and that the frequencies where the resonances occur keep coincident generally. With summaries of merit and demerit, application of each numericalmethod is suggested for dynamic analysis of cylindrical gear system,which aids designers for desirable dynamic behavior of the system and better solutions to engineering problems.
UR - http://www.scopus.com/inward/record.url?scp=85084387137&partnerID=8YFLogxK
U2 - 10.3397/1/37684
DO - 10.3397/1/37684
M3 - 文章
AN - SCOPUS:85084387137
SN - 0736-2501
VL - 68
SP - 48
EP - 58
JO - Noise Control Engineering Journal
JF - Noise Control Engineering Journal
IS - 1
ER -