Tribological testing of MI-26T helicopter tail driver couplings

SECOND INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE, SMART STRUCTURES AND APPLICATIONS: ICMSS-2019 Pub Date : 2019-12-17 DOI:10.1063/1.5138387

V. Shapovalov, A. Ozyabkin, I. Kolesnikov, P. Kharlamov, V. Mischinenko

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引用次数: 1

Abstract

The paper presents a new testing technique for observing the real-time changes occurred in the elastic and dissipative bonds of a heavily loaded tribosystem of the splined coupling of MI-26 tail driver coupling. Unlike other non-destructive testing methods, the frequency transfer-function method can indirectly identify the ratio of the elastic, inertial and dissipative components of the frictional interaction of the splined coupling. The octave (1/3, 1/12, 1/24-fractional octave) spectral analysis of estimating the dissipative energy losses allows to identify the frequency ranges of natural vibrations and monitoring their changes of both the friction-mechanical subsystem and the lubricant used. The proposed dynamic quality criterion is applied both to observe of the changes in the frequencyse, transient in time, elastic-dissipative characteristics of the splined coupling and to actualize a short- or long-term forecast of their changes up to the "warning" and "danger" levels.The paper presents a new testing technique for observing the real-time changes occurred in the elastic and dissipative bonds of a heavily loaded tribosystem of the splined coupling of MI-26 tail driver coupling. Unlike other non-destructive testing methods, the frequency transfer-function method can indirectly identify the ratio of the elastic, inertial and dissipative components of the frictional interaction of the splined coupling. The octave (1/3, 1/12, 1/24-fractional octave) spectral analysis of estimating the dissipative energy losses allows to identify the frequency ranges of natural vibrations and monitoring their changes of both the friction-mechanical subsystem and the lubricant used. The proposed dynamic quality criterion is applied both to observe of the changes in the frequencyse, transient in time, elastic-dissipative characteristics of the splined coupling and to actualize a short- or long-term forecast of their changes up to the "warning" and "danger" levels.

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MI-26T直升机尾驱动接头的摩擦学测试

本文提出了一种用于实时观测MI-26尾驱动联轴器花键联轴器重载荷摩擦系统弹性和耗散键变化的新测试技术。与其他无损检测方法不同，频率传递函数法可以间接识别样条联轴器摩擦相互作用的弹性、惯性和耗散分量的比值。估计耗散能量损失的八度程(1/3、1/12、1/24分数倍程)频谱分析可以识别自然振动的频率范围，并监测摩擦机械子系统和所用润滑剂的变化。所提出的动态质量准则既可用于观察样条耦合的频率、瞬态、弹耗散特性的变化，也可用于实现对其变化的短期或长期预测，直至“警告”和“危险”级别。本文提出了一种用于实时观测MI-26尾驱动联轴器花键联轴器重载荷摩擦系统弹性和耗散键变化的新测试技术。与其他无损检测方法不同，频率传递函数法可以间接识别样条联轴器摩擦相互作用的弹性、惯性和耗散分量的比值。估计耗散能量损失的八度程(1/3、1/12、1/24分数倍程)频谱分析可以识别自然振动的频率范围，并监测摩擦机械子系统和所用润滑剂的变化。所提出的动态质量准则既可用于观察样条耦合的频率、瞬态、弹耗散特性的变化，也可用于实现对其变化的短期或长期预测，直至“警告”和“危险”级别。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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SECOND INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE, SMART STRUCTURES AND APPLICATIONS: ICMSS-2019

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