Dudley's Handbook of Practical Gear Design and Manufacture

Radzevich, Stephen P.

doi:10.1201/9781315368122

Cited by 113 publications

(144 citation statements)

References 5 publications

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“…This could be one of the many applications of this kind of gears [8]. 3 Relation between profile shift and pitch curve slip It is known that the axis distance of cylindrical gears can be slightly modified by applying profile shift [7,9]. This modification does not have any influence on the ratio.…”

Section: Pitch Curves Of Noncircular Gearsmentioning

confidence: 99%

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Cylindrical Gears with Changing Ratio

Bendefy

Horák

2017

Period. Polytech. Mech. Eng.

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Section: Pitch Curves Of Noncircular Gearsmentioning

confidence: 99%

“…The calculation that we worked out are based on the Fellows's method of gear manufacturing [7,9]. Accordingly we studied first the process of a conventional constant profile shift.…”

Section: Pitch Curves Of Noncircular Gearsmentioning

confidence: 99%

Cylindrical Gears with Changing Ratio

Bendefy

Horák

2017

Period. Polytech. Mech. Eng.

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“…The mesh stiffness of a single gear depends on many factors such as tooth module, material, manufacturing technology and thermal treatment. Nevertheless, authors usually assume values from the range: 10 7 , 10 9 (N/m) [36,37]. Conforming the aforementioned works, we assume the following parameters of the play model: stiffens connected with the play element k i = 2 × 10 7 (N/m) and its viscous damping coefficient c i = 0.01 (N s/m).…”

Section: Influence Of Play In Inerter Gearmentioning

confidence: 99%

Effects of play and inerter nonlinearities on the performance of tuned mass damper

Brzeski

Perlikowski

2016

Nonlinear Dyn

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In this paper, we analyze the dynamics of tuned mass dampers with inerters. In the beginning, we describe the influence of inertance value with respect to the overall mass of the damping device. For further analysis, we pick three practically significant caseseach corresponding to different composition of tuned mass damper inertia. Then, we focus on the effects caused by different types of inerters' nonlinearities. Viscous damping, dry friction and play in the inerter gears influence the dynamics of the tuned mass damper and affect its damping efficiency. Finally, we examine the dynamics of the model that incorporates all of these factors and propose its simplification which is genuine but more convenient. Our results show how to adjust the inerter type and the parameters depending on our needs and intended application. The knowledge on how to model the behavior of tuned mass dampers with inerters will be of practical use to engineers working with mechanical dampers.

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“…Spur gears have singletooth and double-tooth meshing appearing alternately during the process of mesh (Shing, 1994). Since normal spur gears have a contact ratio of (1 < ε ratio < 2) (Radzevich & Dudley, 1994), the meshing pair number is usually in the range between 1.0 and 2.0 (Cheng-Zhong & Lie, 2010; Kokare & Patil, 2014). In existing literature, the tooth meshing stiffness is simplified as a rectangular wave (Lin & Parker, 2002) based on the equal load sharing formulation, which proposed by Vaishya and Singh (2001a, 2001b.…”

Section: Varying Meshing Stiffnessmentioning

confidence: 99%

Frictional effects on the dynamic responses of gear systems and the diagnostics of tooth breakages

Brethee

Ball

2016

Systems Science & Control Engineering

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To develop accurate diagnostic techniques, this study examines the dynamic responses of spur gear transmission system with including frictional effects on a tooth mesh process. An 8-degreeof-freedom model is developed to include the effects of supporting bearings, a driving motor and a loading system. Moreover, it takes into account not only the time-varying stiffness, but also the time-varying forces and moments due to the frictional effect. The latter causes additional vibration responses in the direction of the off-line-of-action (OLOA). To show the quantitative effect of the friction, vibration responses are simulated under different friction coefficients. It shows that an increase in friction coefficient value causes a nearly linear increase in the vibration features of diagnostics. However, features from torsional responses and the principal responses in the line-of-action show less changes in the vibration level, whereas the most significant increasing is in the OLOA direction. Furthermore, the spectral peaks at the rotational and sideband frequencies are influenced significantly by small breakage defects, especially when the friction effect is taken into account. In addition, the second and third harmonics of the mesh frequency are more influenced than the first harmonic component for all motions, which can be effective features for both indicating lubrication deterioration and improving conventional diagnostic features. ARTICLE HISTORY

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Dudley's Handbook of Practical Gear Design and Manufacture

Cited by 113 publications

References 5 publications

Cylindrical Gears with Changing Ratio

Cylindrical Gears with Changing Ratio

Effects of play and inerter nonlinearities on the performance of tuned mass damper

Frictional effects on the dynamic responses of gear systems and the diagnostics of tooth breakages

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