Nonlinear Dynamic Analysis of Helical Gear Considering Meshing Impact

Abstract:

Comprehensive meshing stiffness and single tooth meshing stiffness are calculated by tooth contact analysis and load tooth contact analysis program. The corner meshing impact model is proposed. Nonlinear dynamic model of helical gear transmission system is established in this paper considering time-varying meshing stiffness excitation, transmission error excitation, corner meshing impact excitation, and the backlash excitation. Take the ship’s helical gear transmission system as an example, the mesh impact force is derived and the primary factors that produce noises are discussed. The effects which the mesh impact brings to vibration characteristics of the gear dynamic system are concluded. Meshing impact has an inevitable effect on the vibration of the dynamic system. Impact excitation costs 8.5% in maximum of vibration acceleration response, 31% in maximum of instantaneous acceleration, and 4.9% in maximum of spectral component amplitude.

• Periodical: Applied Mechanics and Materials (Volumes 201-202)
• Pages: 135-138
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.201-202.135
• Online since: October 2012
• Authors: Feng Wang, Zong De Fang, Sheng Jin Li
• Keywords: Corner Mesh Impact, Mesh Stiffness, Nonlinear Dynamic Model, Vibration Analysis (VA)

References

[1] D. Guo, X.H. Shi: Journal of Mechanical Transmission, Forum Vol. 34 (2010), pp.53-58 (In Chinese).

[2] Z.Y. Xu: Journal of Hefei University, Forum Vol. 15 (2005), pp.81-84 (In Chinese).

[3] L. Litvin: Gear Geometry and Applied Theory (Cambridge University, England 2004).

[4] R.F. Li: Gear System Dynamics (Science Press Publishers, China 1997).

[5] A. SEIREG: Journal of Engineering for Industry, Forum Vol. 5 (1970), pp.504-514.

[6] F. Marcello: Mechanism and Machine Theory, Forum Vol. 46 (2011), pp.544-557.