Abstract In this article, the computational simulation of workflow in primary combustion chamber flame tube afterburning turbofan jet engine (ATJE) on tactical military aircraft was carried out. The geometric model a created and adapted to perform interrelated calculation thermal stress-strain behaviour walls influenced by operational loads during workflow. Quantitative qualitative analysis res...

Data-driven Remaining Useful Life (RUL) prediction is one of the core technologies Prognostics and Health Management (PHM). Committed to improving accuracy RUL for aero-engines, this paper proposes a model that entirely based on attention mechanism. The divided into multi-head self-attention timing feature enhancement models. employs scaled dot-product extract dependencies between time series; ...

Abstract This paper presents experimental and numerical CFD studies of the aerodynamics a turbine rear structure (TRS). The TRS test geometry is an engine-realistic state-of-the-art design with polygonal outer case, recessed engine mount bumps, three different vane types: regular vanes, bump vanes in sectors, thick vanes. Using sector types simultaneously was found to be crucial for inlet bound...

Because of their potential reductions fuel consumption, disruptive propulsion concepts such as boundary layer ingestion have lately earned the attention aerospace community. increased level interactions brought by tight airframe–propulsor integration, an accurate assessment this benefit requires a detailed study engine behavior from both aerodynamics and overall performance standpoint. In conte...

An aircraft system noise study is presented for the Blended-Wing-Body (BWB) aircraft concept with three open rotor engines mounted on the upper surface of the airframe. It is shown that for such an aircraft, the cumulative Effective Perceived Noise Level (EPNL) is about 24 dB below the current aircraft noise regulations of Stage 4. While this makes the design acoustically viable in meeting the ...

Machine Prognostics and Health Management (PHM) is often concerned with the prediction of Remaining Useful Lifetime (RUL) assets. Accurate real-time RUL predictions enable equipment health assessment maintenance planning. In this work, we propose a Long Short-Term Memory (LSTM) network combined global Attention mechanisms to learn relationships directly from time-series sensor data. We use NASA...

A novel robust control design is proposed for aircraft engines. The engine modeled as an uncertain dynamic system, whose uncertainty may be (possibly fast) time-varying. possible value of the prescribed to within fuzzy sets. This distinguishes our modeling from Takagi–Sugeno inference system. divided into matched and mismatched portions. While lies range space input matrix, falls outside, which...