Multi-time scale thermal tribological dynamics coupling model of the helicopter intermediate reducer under severe loss of lubrication

Lu, Fengxia; Mao, Sunquan; Cao, Xuechen; Bao, Heyun; Zhu, Rupeng

doi:10.1016/j.simpat.2023.102884

Simulation Modelling Practice and Theory

2024

DOI: 10.1016/j.simpat.2023.102884

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Multi-time scale thermal tribological dynamics coupling model of the helicopter intermediate reducer under severe loss of lubrication

Fengxia Lu,

Sunquan Mao,

Xuechen Cao

et al.

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2024

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Control and Modelling of Laser Shock Peening without Coating (LSPwC) Texture of AISI 9310 Steel

Liu,

Yang,

Xie

et al. 2024

Materials

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LSPwC is an important development of Laser shock peening (LSP) technology, and surface texturing is an effective method to improve tribological properties. The combination of these is expected to innovate a new surface texturing technology with a strengthing effect, but no one has attempted it. In this paper, a new LSPTwC technology combining them is innovatively proposed and validated on AISI 9310 steel, which is commonly used in helicopter transmission components for surface texturing. The LSPTwC surface was studied using an optical microscope, electron microscope, energy dispersive spectrometer, and so on. The results proved that LSPTwC is an effective texturing method of AISI 9310 steel, which modulates the texture and improves the properties, such as the microhardness increased by more than 10%. A model for calculating the texture and process parameters is also constructed on a statistical basis, and a modeling method for textured surfaces is proposed. It is verified that the calculation results and the constructed model are highly consistent with the test, with a diameter deviation <3% and depth deviation <4%. The above results can provide the experimental basis, process design method, and calculation model for single-point LSPwC texturing of AISI 9310 steel parts for helicopters, which have application value.

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Control and Modelling of Laser Shock Peening without Coating (LSPwC) Texture of AISI 9310 Steel

Liu,

Yang,

Xie

et al. 2024

Materials

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Multi-time scale thermal tribological dynamics coupling model of the helicopter intermediate reducer under severe loss of lubrication

Cited by 1 publication

References 22 publications

Control and Modelling of Laser Shock Peening without Coating (LSPwC) Texture of AISI 9310 Steel

Control and Modelling of Laser Shock Peening without Coating (LSPwC) Texture of AISI 9310 Steel

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