Parallel system information model diagnostics and forecasting of technical condition of aircraft

D. S. Koptev, I. E. Mukhin
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Abstract

To date, there is a contradiction between the ever-growing need to increase the degree of functional saturation of diagnostic tools and forecasting the current state of aircraft and the limited technical capabilities of diagnostic tools. The noted contradiction is constantly aggravated due to the ever-increasing complexity of aircraft and means of their automation, which requires a corresponding increase in the functionality of the means of monitoring the technical condition. All this leads to an unjustified increase in the weight and size indicators of diagnostic tools, which significantly affects the technical and economic indicators during the operation of aircraft. This article proposes an information model for a parallel system for diagnosing and predicting the technical condition of aircraft using the example of helicopters, characterizes the groups of sensors included in the system, and outlines the principles for solving problems of diagnosing and predicting the failure state of an aviation complex. A procedure is proposed for accumulating flight data on the parameters of critical components and assemblies on board a helicopter and a method of express analysis, which consists in monitoring in real time the trend of parameters and the rate of change of this trend to limit values. It has been proven that provision should be made for the issuance of emergency visual and audible indication to the helicopter crew about an emergency situation.
飞机技术状态的并行系统信息模型诊断与预测
迄今为止,不断增长的提高诊断工具功能饱和程度和预测飞机现状的需求与诊断工具有限的技术能力之间存在矛盾。由于飞机及其自动化手段日益复杂,这一矛盾不断加剧,这就要求监测技术状况的手段的功能相应增加。所有这些都导致诊断工具的重量和尺寸指标不合理地增加,严重影响飞机运行期间的技术和经济指标。以直升机为例,提出了飞机技术状态诊断与预测并行系统的信息模型,描述了该系统中传感器组的特征,概述了航空综合体故障状态诊断与预测问题的解决原则。提出了一种积累直升机关键部件和组件参数飞行数据的程序和一种快速分析方法,即实时监测参数的变化趋势和这种变化趋势对极限值的变化率。事实证明,应规定向直升机机组人员发出关于紧急情况的紧急视觉和听觉指示。
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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