Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The current status of an ongoing effort to develop a comprehensive gearbox aero-thermodynamics and tribology simulation tool, named PSULOL, applicable to both well-lubricated and loss-of-lubrication operation is presented. PSULOL employs a multi-scale approach, wherein various physical effects including: meshing tribology, convection heat transfer within the system and to the environment, high-frequency thermodynamic effects induced by the gear meshing frequency, and the long-time response of the overall gearbox temperature to a net imbalance of heat generation and transfer to the environment are simulated separately and coupled with one another iteratively through appropriate boundary and initial conditions. As established in 2014, the first-generation version of PSULOL was the first computational fluid dynamics-based (CFD-based) tool coupled with an all-lubrication regime tribology model capable of simulating transient loss-of-lubrication failure of high-speed gearboxes. This first version was built on an in-house research CFD code, NPHASE-PSU, and relied on a number of physical simplifications, particularly with regard to the geometric configuration of the housing, and to the effects of the coupling between multiphase flow within the system (retained lubricant dynamics) and meshing tribology. Here, present efforts underway to increase the physical fidelity and ease-of-use of PSULOL are outlined, and progress toward simulating physically-realistic gearbox configurations is shown. This includes modeling the disperse multiphase flow of lubricant droplets and film within the system, and transitioning from NPHASE-PSU, an in-house research CFD code, to Star- CCM+, a commercial code that is more user-friendly and features additional geometry-handling capabilities.

Original languageEnglish (US)
Title of host publication73rd American Helicopter Society International Annual Forum Special Sessions 2017
PublisherAmerican Helicopter Society
Pages242-261
Number of pages20
Volume2017-May
ISBN (Electronic)9781510844070
StatePublished - Jan 1 2017
Event73rd American Helicopter Society International Annual Forum Special Sessions 2017 - Fort Worth, United States
Duration: May 8 2017May 11 2017

Other

Other73rd American Helicopter Society International Annual Forum Special Sessions 2017
CountryUnited States
CityFort Worth
Period5/8/175/11/17

Fingerprint

Tribology
Thermodynamics
Lubrication
Computational fluid dynamics
Multiphase flow
Lubricants
Heat convection
Heat generation
Stars
Gears
Heat transfer
Geometry
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

McIntyre, S. M., & Kunz, R. F. (2017). Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation. In 73rd American Helicopter Society International Annual Forum Special Sessions 2017 (Vol. 2017-May, pp. 242-261). American Helicopter Society.
McIntyre, Sean Michael ; Kunz, Robert Francis. / Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation. 73rd American Helicopter Society International Annual Forum Special Sessions 2017. Vol. 2017-May American Helicopter Society, 2017. pp. 242-261
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McIntyre, SM & Kunz, RF 2017, Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation. in 73rd American Helicopter Society International Annual Forum Special Sessions 2017. vol. 2017-May, American Helicopter Society, pp. 242-261, 73rd American Helicopter Society International Annual Forum Special Sessions 2017, Fort Worth, United States, 5/8/17.

Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation. / McIntyre, Sean Michael; Kunz, Robert Francis.

73rd American Helicopter Society International Annual Forum Special Sessions 2017. Vol. 2017-May American Helicopter Society, 2017. p. 242-261.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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McIntyre SM, Kunz RF. Advances and applications in comprehensive Gearbox Aero-thermodynamics and tribology simulation. In 73rd American Helicopter Society International Annual Forum Special Sessions 2017. Vol. 2017-May. American Helicopter Society. 2017. p. 242-261