Influence of alignment errors on contact pressure during straight bevel gear meshing process

Abstract

Straight bevel gears are widely applied in automotive, aerospace, chemical and many other fields as one of the most common type of gears. Currently, the researches on straight bevel gears have focused on the fields of fatigue, wear, noise and vibration, while little attention is paid to the effect of multiple alignment errors on the gear tooth wear. To study the influence of alignment errors on the gear tooth wear, a simulated model of a straight bevel gear pair is established. Then, the contact pressure on the tooth surface is analyzed under the various alignment errors according to the Archard wear relationship. The main combinations of alignment errors played vital roles on the tooth wear are investigated. The result shows that under the single alignment error, the contact pressure moves to the tooth heel and increases greatly at here when P=0.1 or G=0.1; when E=-0.03, the contact pressure greatly increases at the tooth heel, but it obviously increases at the tooth toe when E=0.03; the alignment error γ=1 has little effect on the contact pressure on the tooth surface. Moreover, the combination of P, G, E<0 and γ is the most dangerous type among the multiple alignment errors. This research provides valuable guidelines for predicting the tooth wear under various alignment errors.

Design and Simulation of Meshing Performance of Modified Straight Bevel Gears

“…In this paper, the meshing performance of modified gear drives both in standard installment and with alignment errors has been studied to evaluate the tooth modification effect. We choose the alignment errors in Table 3 [17].…”

“…where θ a and θ b are the angle of tip cone and base cone, respectively, and θ c is the angle of cutting beginning cone. Combined the Equations ( 1)-( 4), the assembling models which are illustrated in Figure 2 are accomplished in 3D modeling software [17]. The basic geometrical data of the sample straight bevel gear pair are shown in Table 1.…”

Application of Fractal Contact Model in Dynamic Performance Analysis of Gas Face Seals

“…Face contact is an important physical reality in a number of research fields [1][2][3]. In the field of face seals, for contacting face seals, face contact is inevitable during the opened operation.…”

Rocking vibration and dynamic characteristics of a two-stage spur and bevel gear transmitting system

“…Han et al. 11 investigated the influence of alignment errors on the contact pressure of the straight bevel gear. Bahrami Ghahnavieh et al.…”

“…Deng et al 10 analyzed the contact fatigue and bending fatigue of the straight bevel gear based on the finite element method (FEM). Han et al 11 investigated the influence of alignment errors on the contact pressure of the straight bevel gear. Bahrami Ghahnavieh et al 12 developed a model to calculate the film thickness and friction coefficient under the mixedlubrication regime in straight bevel gears.…”