Results 251 to 260 of about 156,572 (295)

Dynamic Analysis of a Multi-Mesh Gear System With Mesh Stiffness Variation

Volume 5: 25th International Conference on Design Theory and Methodology; ASME 2013 Power Transmission and Gearing Conference, 2013
Parameter excited oscillations induced by the varying tooth mesh stiffnesses of the gear pairs cause severe vibration in gear systems. The oscillations become more complex and serious in multi-mesh gear system because more mesh stiffnesses variation occur, which are necessary to be investigated in deeply. To illustrate the complex oscillation phenomena,
Hanjun Jiang, Yimin Shao
openaire   +1 more source

Study on Nonlinear Meshing Stiffness of Spline

2015
In the study on the dynamic characteristics of spline rotor system, the spline stiffness is simplified as the constant related with single tooth stiffness. Based on spline single tooth stiffness calculation, according to spline deformation, stress and torque, spline transverse meshing stiffness model is established, and the numerical simulation ...
Guang Zhao, Juncong Su, Jingyu Zhai, Qingkai Han, Yanyan Shi   +4 more
openaire   +1 more source

Calculation of Gear Meshing Stiffness Considering Lubrication

Journal of Tribology, 2019
Abstract Gear meshing stiffness is the key parameter to study the gear dynamic performance. However, the study on the calculation of gear meshing stiffness considering lubrication, especially mixed lubrication, is still insufficient. Based on the three-dimensional linear contact mixed elastohydrodynamic lubrication model and the contact ...
Gong Cheng, Ke Xiao, Jiaxu Wang, Wei Pu, Yanfeng Han   +4 more
openaire   +1 more source

Back-Side Contact Gear Mesh Stiffness

Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and Tire Technologies, 2011
Back-side gear tooth contact happens when the anti-backlash (or scissor) gears are applied or tooth wedging occurs. An accurate description of the back-side gear tooth mesh stiffness is important to any study on gear dynamics that involves tooth wedging or anti-backlash mechanism.
Yichao Guo, Robert G. Parker
openaire   +1 more source

Gear Mesh Stiffness and Damping Co-simulation

2020
In this paper it is described a co-simulation between a multibody dynamics system (built in MSC.ADAMS®) and a gear mesh stiffness and damping model implemented by means of block diagrams (MATLAB/Simulink®). The total knowledge about the gear pair model is valuable when modelling and analyzing dynamic systems sensitive to the mesh varying properties ...
Áquila Chagas de Carvalho, Fabio Mazzariol Santiciolli, Samuel Filgueira da Silva, Jony J. Eckert, Ludmila C. A. Silva, Franco G. Dedini   +5 more
openaire   +1 more source

A Comparison of Gear Mesh Stiffness Modeling Strategies

2011
Gearboxes are prone to numerous faults that require vibration health monitoring to ensure proper operation. Monitoring methods typically employ casing mounted accelerometers. This data is difficult to interpret because of the many gear mesh frequencies present and is further complicated by the presence of significant amounts of noise. Several different
Jim Meagher, Xi Wu, Dewen Kong, Chun Hung Lee   +3 more
openaire   +1 more source

A study of spur gear torsional mesh stiffness

International Technology and Innovation Conference 2009 (ITIC 2009), 2009
Through applying finite element methods (FEM),the results of a detailed three-dimensional analysis of the torsional mesh stiffness of spur gears were presented in this paper. Hertz formula can only calculate the contact stress approximately, while FEM can be used to conduct precise analysis of the tooth contact stress and deformation.
null Wu zhifei, null Wang tie, null Zhang ruiliang   +2 more
openaire   +1 more source

Influences of friction and mesh misalignment on time-varying mesh stiffness of helical gears

Journal of Mechanical Science and Technology, 2017
As one of the most important excitation sources of vibration, time-varying mesh stiffness of helical gear pairs need accurately calculated. Compared with spur gears, friction in helical gears is significant. This work for the first time presents an improved calculation method for the mesh stiffness of helical gears with effect of friction incorporated.
Lin Han, Lixin Xu, Houjun Qi
openaire   +1 more source

Mesh selection for stiff two-point boundary value problems

Numerical Algorithms, 1994
The general structure of COLSYS is reviewed, in particular, some theoretical properties of collocation at Gaussian points are stated and it is demonstrated how these properties lead to the derivation of the algorithms for error estimation and mesh selection.
R. Wright, J. Cash, G. Moore
openaire   +2 more sources

Equivalent Conversion Calculation of Straight Bevel Gear Mesh Stiffness

2009 Fifth International Conference on Natural Computation, 2009
Based on analyzing the defects of the usual equivalent conversion methods, the paper presents a new equivalent conversion method for mesh stiffness calculation of straight bevel gears of the small teeth number and diameter. By means of comparison among the different calculation methods, the conclusions can be obtained as follow: The straight bevel gear’
Zhi Wang, Guicheng Wang, Longbao Wang, Jinhui Zhu   +3 more
openaire   +1 more source