Research on airplanes engines dynamic processes with modern acoustic methods for fast and accurate diagnostics and safety improvement

Waligórski, Marek; Batura, Karolina; Kucal, Karolina; Merkisz, Jerzy

doi:10.1016/j.measurement.2019.107460

Cited by 12 publications

(6 citation statements)

References 37 publications

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“…As a result, the multidimensional description of the genesis and behavior of the object in the conditions of its actual working environment becomes more complete, showing real possibilities of influencing the object in order to achieve greater overall efficiency. This approach to system analysis is even more expected the more often measures obtained from observations of accompanying processes are used in diagnostic assessment, such as in the case of vibroacoustic signals [16,19,20,22]. However, before measurements are taken, it is paramount to ensure the appropriate quality of the object's foundation on the test stand.…”

Section: Introductionmentioning

confidence: 99%

Assessment of vibration isolation generated by the inertial forces of an aircraft combustion engine on a test bench

Szymański,

Waligórski,

Misztal

2024

Diagnostyka

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Section: Introductionmentioning

confidence: 99%

Assessment of vibration isolation generated by the inertial forces of an aircraft combustion engine on a test bench

Szymański,

Waligórski,

Misztal

2024

Diagnostyka

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“…At present, some progress has been made in the study of fire accident characteristics and fire propagation laws at home and abroad. Many scholars' research on fire and evacuation during fire mainly focuses on simulation [3][4][5], it is mainly divided into empirical simulation, semi-physical simulation and physical simulation [6][7][8]. In the previous study, the authors discussed the combustion characteristics and smoke toxicity of aviation materials under fire conditions, and discussed the impact of passenger age structure on evacuation rate during fire escape [9,10].…”

Section: Introductionmentioning

confidence: 99%

Simulation on Temperature Variation Characteristics of Airbus 380 Double-Deck Cabin Under Fire Condition

Liu,

Gao,

Xie

et al. 2023

Advances in Transdisciplinary Engineering

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In order to study the temperature change characteristics of Airbus 380 double-deck cabin in case of sudden fire, a three-dimensional cabin model is built at a 1:1 scale, and the fire temperature propagation process is simulated using Pyrosim software. It is found that the temperature at the front and rear seats of the cabin depends on the distance from the bulkhead at both ends, and the temperature at the middle position of the cabin mainly depends on the distance from the fire source. On the section of upper cabin z=4.1 m, the temperature change at the cabin tail starts first, and the temperature change at the cabin tail is local diffusion, while the temperature change at the cabin head is large diffusion at the beginning. The temperature changes at three altitudes in the upper cabin are generally the same at different times. The temperature at the stern of the cabin at z=3.1 m and z=3.5 m is higher than that at other positions, with the highest values of 296.5 K and 297.6 K respectively. The temperature at the head and stern of the cabin at z=4.1 m is higher than that at other positions.

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“…Many effective methods, such as gas path analysis, oil analysis, visual inspections, vibration monitoring, acoustic monitoring, and image feature extraction [9][10][11], have been developed for the fault diagnosis. Gas path analysis is the most powerful method to detect gas path faults [12].…”

Section: Introductionmentioning

confidence: 99%

Gas path fault diagnosis for gas turbine engines with fully operating regions using mode identification and model matching

Huang¹,

Ma²,

Jia³

et al. 2022

Meas. Sci. Technol.

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Gas path fault diagnosis is key to improving the reliability and safety of gas turbine engines. Flexible operating conditions bring obstacles to performing accurate gas path performance analysis. Most of the existing methods are developed for specific operating conditions, which are difficult to adapt to fully operating regions. The operating mode identification and targeted diagnostic model matching are effective technologies to solve the gas path fault diagnosis under fully operating regions, which improves diagnostic accuracy and efficiency. The fully operating regions are classified into four typical operating modes, and the targeted diagnostic models are matched according to the mode features. For the typical start-stop state and high dynamic state, the small deviation diagnostic model and transient diagnostic model are established and verified by real fault cases. The small deviation diagnostic model based on boundary parameters reduces the influences of operating conditions on diagnostic results, it accurately monitors the health states. The transient diagnostic model driven by the dynamic model and a designed hybrid solution algorithm markedly improves diagnostic accuracy and efficiency. It shows better performance for the mixed gas path fault modes, more stable diagnostic results, and higher diagnostic efficiency. The proposed technical framework provides an effective way for the fault diagnosis of gas turbine engines under fully operating regions.

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Research on airplanes engines dynamic processes with modern acoustic methods for fast and accurate diagnostics and safety improvement

Cited by 12 publications

References 37 publications

Assessment of vibration isolation generated by the inertial forces of an aircraft combustion engine on a test bench

Assessment of vibration isolation generated by the inertial forces of an aircraft combustion engine on a test bench

Simulation on Temperature Variation Characteristics of Airbus 380 Double-Deck Cabin Under Fire Condition

Gas path fault diagnosis for gas turbine engines with fully operating regions using mode identification and model matching

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