VIBRATIONS OF THE PLANETARY GEAR SETS WITH UNEQUALLY SPACED PLANETS

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SHAHABI ALI; SHEYKH SAMANI FARHAD

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Journal: Modares Mechanical Engineering Year:2017 | Volume:16 | Issue:12 Page(s): 204-214

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Title

VIBRATIONS OF THE PLANETARY GEAR SETS WITH UNEQUALLY SPACED PLANETS

Author(s)

SHAHABI ALI | SHEYKH SAMANI FARHAD | Issue Writer Certificate

Keywords

PLANETARY GEARQ1

NATURAL FREQUENCYQ2

VIBRATION MODEQ1

UNEQUALLY SPACED PLANETSQ1

Abstract

The position of the planets for the PLANETARY GEAR systems are in two forms of equally and unequally spaced. This paper investigates free vibration of the PLANETARY GEAR with UNEQUALLY SPACED PLANETS. The PLANETARY GEAR set of this study is modeled as a set of lumped masses and springs. Each component such as sun gear, carrier, ring gear and planets possesses three degrees of freedom and is considered as rigid body. Bearing and mesh stiffness are modeled in the form of linear springs. Generally, planet, rotational, translational, distinct and degenerate modes are five VIBRATION MODEs of the PLANETARY GEAR systems. The results show that the translational mode for the system with numbers of even equally and UNEQUALLY SPACED PLANETS, is different and rotational and translational modes have the same characteristics for both systems. For the system with numbers of even UNEQUALLY SPACED PLANETS, the natural frequencies of the translational modes have a multiplicity one. When the numbers of the planets of the system are odd and the position of them is unequally spaced, the rotational and planet modes are generated and the natural frequencies of the translational modes do not appear. For the distinct and degenerate modes of the system with UNEQUALLY SPACED PLANETS, the planets only have the rotational motion.

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APA: Copy

SHAHABI, ALI, & SHEYKH SAMANI, FARHAD. (2017). VIBRATIONS OF THE PLANETARY GEAR SETS WITH UNEQUALLY SPACED PLANETS. MODARES MECHANICAL ENGINEERING, 16(12 ), 204-214. SID. https://sid.ir/paper/178188/en

Vancouver: Copy

SHAHABI ALI, SHEYKH SAMANI FARHAD. VIBRATIONS OF THE PLANETARY GEAR SETS WITH UNEQUALLY SPACED PLANETS. MODARES MECHANICAL ENGINEERING[Internet]. 2017;16(12 ):204-214. Available from: https://sid.ir/paper/178188/en

IEEE: Copy

ALI SHAHABI, and FARHAD SHEYKH SAMANI, “VIBRATIONS OF THE PLANETARY GEAR SETS WITH UNEQUALLY SPACED PLANETS,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 12 , pp. 204–214, 2017, [Online]. Available: https://sid.ir/paper/178188/en

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