Mechanical stability of high-speed planetary gears

Cooley, Christopher G.; Parker, Robert G.

doi:10.1016/j.ijmecsci.2013.01.025

Cited by 26 publications

(16 citation statements)

References 25 publications

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“…Although this is a necessary but not sufficient condition, a variety of numerical experiments suggest that flutter instability occurs in every system with tuning order less than unity. Similar to planetary gear systems, only the translational modes can experience flutter instability [26]. No flutter conditions were derived in [26] for planetary gear systems.…”

Section: Flutter Instabilitymentioning

confidence: 99%

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Modal properties and stability of centrifugal pendulum vibration absorber systems with equally spaced, identical absorbers

Shi

Parker

2012

Journal of Sound and Vibration

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Section: Flutter Instabilitymentioning

confidence: 99%

“…Similar to planetary gear systems, only the translational modes can experience flutter instability [26]. No flutter conditions were derived in [26] for planetary gear systems.…”

Section: Flutter Instabilitymentioning

confidence: 99%

Modal properties and stability of centrifugal pendulum vibration absorber systems with equally spaced, identical absorbers

Shi

Parker

2012

Journal of Sound and Vibration

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“…Their simulated results showed that bigger reduction in mesh stiffness was caused by the growth in the crack size. Cooley and Parker [37] presented numerical results verified the critical speed locations and the stability near the critical speeds. They showed flutter instabilities occurred at extremely high speeds, and they investigated numerically for each mode type.…”

Section: Introductionmentioning

confidence: 77%

Vibration behavior optimization of planetary gear sets

Aski

Mirparizi

Samani

et al. 2014

Propulsion and Power Research

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This paper presents a global optimization method focused on planetary gear vibration reduction by means of tip relief profile modifications. A nonlinear dynamic model is used to study the vibration behavior. In order to investigate the optimal radius and amplitude, Brute Force method optimization is used. One approach in optimization is straightforward and requires considerable computation power: brute force methods try to calculate all possible solutions and decide afterwards which one is the best. Results show the influence of optimal profile on planetary gear vibrations.

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“…Kiracofe et al [17] and Dhouib et al [18] extended previous lateral-torsional model to compound, multi-stage planetary gears, and proved that they exhibited modal characteristics similar to simple, single-stage planetary gears. Vibration property of planetary gears with gyroscopic effects was investigated in [19,20].…”

Section: Introductionmentioning

confidence: 99%

Free vibration properties of rotate vector reducer

Chen¹,

Yang²

2016

J. vibroeng.

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For RV reducer widely used in Robots, this work develops a lumped parameter model to investigate free vibration properties of general description. The dynamic model admits three planar degrees of freedom for each component and includes key factors affecting vibration such as involute and cycloid gear mesh stiffness, crankshaft bending stiffness and bearing stiffness. For the linear case, examine of the associated eigenvalue problem reveals the specific structure of vibration modes. The modes are classified into three types: rotational, translational, and planetary component modes. All vibration modes fall into one of these three categories. The unique properties of each type is examined which is analytically verified with candidate mode method. Furthermore, the work investigates effects of parameters, which include stiffness, mass, moment of inertia and crankshaft eccentricity, on natural frequencies of three vibration modes and crankshaft eccentricity is in particular scrutinized. It is helpful for understanding the relationship between parameters and vibration modes.

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Mechanical stability of high-speed planetary gears

Cited by 26 publications

References 25 publications

Modal properties and stability of centrifugal pendulum vibration absorber systems with equally spaced, identical absorbers

Modal properties and stability of centrifugal pendulum vibration absorber systems with equally spaced, identical absorbers

Vibration behavior optimization of planetary gear sets

Free vibration properties of rotate vector reducer

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