Results 131 to 140 of about 1,252,707 (292)
Stretchable, Highly Durable Ternary Nanocomposite Strain Sensor for Structural Health Monitoring of Flexible Aircraft. [PDF]
Sensors (Basel), 2017 Yin F, Ye D, Zhu C, Qiu L, Huang Y.
europepmc +1 more source
Quality and Reliability Engineering International, EarlyView.ABSTRACT A repairable system operates under a maintenance strategy involving scheduled preventive maintenance (PM) and corrective repair actions following failures. This study develops an exact analytical methodology using Markov chains with discrete states and time to calculate the expected number of failures E[N(t)]$\mathop {\mathbb {E}}[N(t)]$ under
Danilo G. O. Valadares +3 more
wiley +1 more source
Simulation of a flexible aircraft dynamics
Simulation of a flexible aircraft dynamics航空宇宙技術研究所 16-18 Jun. 1999 東京 日本 National Aerospace Laboratory 16-18 Jun. 1999 Tokyo Japan SST実験機の遷音速領域でのフラッタの数値シミュレーションを報告する。航空機の翼と胴体の弾性は、構造方程式を解く際に24個の対称および非対称の自然モードを使用することによって考慮した。SSTの応答を見るために、オイラー方程式および構造方程式は同時に積分された。線形理論と同じように、補助翼のフラッタはこの形状では最も重要なものの1つであることが分かった。マッハ数0.6〜1.0の範囲で線形理論から予測されたフラッタの境界より低い値が推算された。 Numerical flutter simulation of the ...
openaire +1 more source
Weibull Variational Autoencoder for Remaining Useful Life Prediction
Quality and Reliability Engineering International, EarlyView.ABSTRACT Remaining useful life (RUL) prediction is a critical technology for preventing unexpected failures and reducing maintenance costs in modern industrial systems. However, traditional model‐based approaches are limited by the need for explicit mathematical modeling of degradation mechanisms, while data‐driven methods often require large‐scale ...
JunWoo Yu +4 more
wiley +1 more source
Cessna Aircraft Company, Board of Directors Meeting Minutes, 1930
, 1930 Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
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Quality and Reliability Engineering International, EarlyView.ABSTRACT Understanding and modeling the equipment failure behavior is crucial for reducing downtime, optimizing maintenance strategies, and improving operational safety. This challenge becomes particularly critical in industrial contexts involving multi‐asset portfolios, where heterogeneous conditions influence the reliability of individual assets and,
Zeynab Allahkarami +4 more
wiley +1 more source
Cessna Aircraft Company, Board of Directors Meeting Minutes, 1940
, 1940 Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
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Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Cessna Aircraft Company, Board of Directors Meeting Minutes, 1943
, 1943 Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core
Remote Sensing in Ecology and Conservation, EarlyView.We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin +5 more
wiley +1 more source