A Parametric Analysis of High-Contact-Ratio Spur Gears

Staph, H. E.

doi:10.1080/05698197608982795

Cited by 13 publications

(9 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This r a n k i n g o f t h e gear losses i s cons i s t e n t w i t h what Staph found i n Ref. 16 even though t h e magnitudes a r e n o t the same. Since Staph d i d n o t consider r o l l i n g o r windage losses h i s l o s s estimate f o r gear M was much lower than shown here.…”

Section: An O I L V I S C O S I T Y O F 30 Cp Was Selected O F T H Ementioning

confidence: 79%

Efficiency of Nonstandard and High Contact Ratio Involute Spur Gears

Anderson

Loewenthal

1986

Journal of Mechanisms, Transmissions, and Automation in Design

View full text Add to dashboard Cite

show abstract

Section: An O I L V I S C O S I T Y O F 30 Cp Was Selected O F T H Ementioning

confidence: 79%

Efficiency of Nonstandard and High Contact Ratio Involute Spur Gears

Anderson

Loewenthal

1986

Journal of Mechanisms, Transmissions, and Automation in Design

View full text Add to dashboard Cite

show abstract

“…44 performed an experiment, which indicated that the surface temperature for a curved-face-width spur gear was close to maximum surface temperature calculated for the similar standard spur gear. Staph 45 suggested that a gear with high-contact ratio obtained by increasing the addendum of an equivalent normal-contact-ratio gear, will have lower bending and compressive stresses. Walton et al.…”

Section: Rudimentary and Advanced Design Features Of Polymer And Polymentioning

confidence: 99%

“…43 Andrei et al 44 performed an experiment, which indicated that the surface temperature for a curved-face-width spur gear was close to maximum surface temperature calculated for the similar standard spur gear. Staph 45 suggested that a gear with high-contact ratio obtained by increasing the addendum of an equivalent normalcontact-ratio gear, will have lower bending and compressive stresses. Walton et al 46 found that the increase in the center distance of a gear pair had little effect on the efficiency but, when the center distance reduced, the efficiency deteriorated with the increasing speed due to tooth interference.…”

Section: Rudimentary and Advanced Design Features Of Polymer And Polymentioning

confidence: 99%

Polymer spur gears behaviors under different loading conditions: A review

Singh

Siddhartha

Singh

2017

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

The significance of polymer gears to transmit power and motion is increasing continuously due to their inherent characteristics. Polymer gears have established themselves as attractive alternatives to traditional metal gears in plethora applications. They are light in weight, have lower inertia, and run noiseless than their metal counterparts. This article presents a comprehensive review of the research on polymer spur gears operating under low (0–8 Nm) and moderate (>8 and ≤17 Nm) loading conditions. Different polymers and polymer composites used till date for the fabrication of such gears are included along with different operating conditions. Various design features of polymer gears and tooth modification techniques for the improvement of the performance and durability of these gears have also been included in this review. The aspects of the modeling and simulation studies of the polymer gears are also emphasized in this paper for completeness of the review. The concept of hybrid gears is discussed along with their tribological properties. Various methods of manufacturing of polymer gears and their failure modes are discussed so as to make the article useful for researchers.

show abstract

“…In the past few decades, most of research on HCRG has mainly been concentrated on tooth load sharing, stress analysis, and tooth profile modification. Staph [4] discussed the effects of gear parameters on several performance factors of HCRG and gave a method to tooth load sharing in HCRG. Cornell and Westervelt [1] developed a dynamic model for calculating the dynamic tooth loads and root stresses for HCRG.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamics analysis of high contact ratio gears system with multiple clearances

Huang

Xiong

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

A brief research status on high contact ratio gears (HCRG) is first conducted to obtain a basic understanding. Subsequently, a nonlinear dynamic model of HCRG with multiple clearances is established by the lumped mass method, in which timevarying mesh stiffness (TVMS), static transmission error, gear backlash, and bearing radial clearance are taken into consideration as well. The TVMS of HCRG is calculated based on an improved potential energy model and then fitted into a Fourier series form. After the dimensionless treatment, the system differential equations of motion are solved using Runge-Kutta numerical integration method. With the help of bifurcation diagrams, largest Lyapunov exponent charts, time-domain waveforms, FFT spectra, Poincaré maps, and phase diagrams, the influence of excitation frequency, gear backlash, mesh damping ratio, error fluctuation, and bearing radial clearance on the nonlinear dynamic characteristics of the system is investigated in detail. The results show that with the changes of these analysis parameters, the system exhibits different types of nonlinear behaviors and dynamic evolution mechanism, including period-one, multi-periodic, quasi-periodic, chaotic motions, and jump discontinuity phenomenon. Meanwhile, three typical routes to chaos, namely period-doubling bifurcation to chaos, quasi-period to chaos, and crisis to chaos, are also demonstrated. Additionally, it is found that the bearing radial clearance produces a weaker nonlinear coupling effect when compared to gear backlash. The research results can provide a certain theoretical support for the dynamic design and vibration control of the HCRG.

show abstract

A Parametric Analysis of High-Contact-Ratio Spur Gears

Cited by 13 publications

References 1 publication

Efficiency of Nonstandard and High Contact Ratio Involute Spur Gears

Efficiency of Nonstandard and High Contact Ratio Involute Spur Gears

Polymer spur gears behaviors under different loading conditions: A review

Nonlinear dynamics analysis of high contact ratio gears system with multiple clearances

Contact Info

Product

Resources

About