Nanjing University of Aeronautics and Astronautics

Computational methods for fluid-structure interaction in flexible wind turbine blades

To provide an accurate and computationally efficient methodology for FSI research, this study develops a CFD/CSD coupling model based on a loosely coupled strategy, implemented via a fully in-house solver. Within the CFD component, a dual-grid/dual-solver approach based on the ov...

Mitigating Chemomechanical Degradation in All-Solid-State Batteries via Combined Porous Silicon and Hard-Carbon Architectures

Silicon (Si) is a highly promising anode for next-generation all-solid-state batteries (ASSBs) owing to its exceptional theoretical capacity and low propensity for dendrite formation. However, severe volume fluctuations during (de)lithiation induce chemomechanical degradation and...

Nanostructured surface layer and high-cycle fatigue behavior at 850 °C of single-crystal nickel superalloy induced by surface grinding treatment

The microstructures in the surface layer by surface grinding treatment (SGT) and their fractographic features in high-cycle fatigue (HCF) at 850 °C are investigated for single-crystal nickel superalloy (SCNS) DD6. All samples after SGT show the nanostructure transition from singl...

Polarization-sensitive self-powered ultraviolet detection and image encryption enabled by RbCu2I3/SiC heterostructure

Polarization-sensitive self-powered ultraviolet photodetectors are of great significance for advanced target recognition, machine vision, and artificial intelligence, particularly in complex optical environments where multidimensional information extraction is critical. We report...

Gaussian-process-based shared-ICR adaptive tube MPC for trajectory tracking of all-axle steer-by-wire heavy vehicles

All-axle steer-by-wire (ASBW) systems enable independent steering control of all axles and can improve the trajectory tracking performance of heavy vehicles. However, during heavy-load transportation, frequent load variations intensify parameter perturbations, such as tire corner...

Solving Deadlock Problem for Consensus‐Based Bundle Algorithm in Distributed Systems With Practical Fuel Consumption Evaluation

ABSTRACT This paper proposes the Deadlock‐Free Consensus‐Based Bundle Algorithm (DF‐CBBA) to address deadlock in distributed multi‐agent task allocation problems with practical fuel consumption evaluation. A more practical optimization problem, which intentionally violates the Di...

Corporate environmental credit rating and social stability: Evidence from capital-labor conflicts in China's polluting industries

Mitigating capital-labor conflicts is essential for maintaining social stability. Using China's Enterprise Environmental Credit Evaluation System (EECES) as a quasi-natural experiment, this study examines the impact of corporate environmental credit rating on capital-labor confli...

Heat transfer behavior and casting solidification characteristics in multi-material functionally structured sand molds

The heat-transfer behavior of the casting–mold system directly affects the cooling rate, solidification evolution, and microstructure formation of castings. For complex castings with variations in wall thickness and local hot spots, different regions require different heat-dissip...

Quantifying Pilot Operational Deviations Based on Flight Data via Inverse Reinforcement Learning and Conformal Prediction

Threshold-based flight data monitoring (FDM) identifies parameter exceedances but provides limited visibility into gradual operational deviation within nominal operating bounds. This study presents a three-layer framework for continuous operational deviation quantification from q...

Self‐Filtering InGaN/GaN Multiple Quantum Wells Ultraviolet Photodetector With 12 nm Narrowband and 82 ns Ultrafast Response

ABSTRACT Ultraviolet (UV) detection technology is critically important in fields such as environmental monitoring and communications. However, conventional photodetectors struggle to achieve both narrowband spectral response and ultrafast operational speed simultaneously. Herein,...

Debris cloud redirection in origami-inspired foldcore structures under hypervelocity impact: a review

The increasing population of micrometeoroids and orbital debris (MMOD) has intensified the need for lightweight and efficient shielding systems capable of withstanding hypervelocity impacts (HVI). Conventional shielding concepts, such as Whipple shields and honeycomb or foam-core...

Remaining useful life prediction of aero-engine based on an enhanced probSparse self-attention

Predicting the remaining useful life (RUL) of aircraft engines allows for advanced estimation of its health status, serving as a crucial element in the overall health management system. Traditional RUL prediction models utilizing long short-term memory and convolutional neural ne...

\({\mathcal{W}}\)\({}_{\textrm{d}}\)-Convergence Rate of EM Schemes for Invariant Measures of Supercritical Stable SDEs

Abstract. By establishing the regularity estimates for nonlocal Stein/Poisson equations under [Formula: see text]-order Hölder and dissipative conditions on the coefficients, we derive the [Formula: see text][Formula: see text]-convergence rate for the Euler–Maruyama schemes appl...

Electrostatic-Coordination Coupling Crosslinked Fullerenol-Ga Nanoparticles with Antioxidant, Osteogenic, and Antibacterial Bioactivities: A Promising Additive for Orthopedic Implant Modification

The antibacterial property of fullerenes and their derivatives is highly dependent on light irradiation, which limits their biomedical applications. In this work, we report a novel type of nanoparticle composed of Fullerenol and gallium (Ga). The morphological features and chemic...

Numerical study of unsteady aerodynamic interference in dual-helicopter/ship flow fields

To clarify the unsteady aerodynamic interference in simultaneous shipboard dual-helicopter operations, a high-fidelity Computational Fluid Dynamics (CFD) model based on Improved Delayed Detached-Eddy Simulation (IDDES) was established for a Wasp-class ship under headwind, Green 3...

Thermo-Mechanically Coupled Phase-field Fracture Model Considering Elastocaloric Effect of Shape Memory Alloy

Modeling the fracture behaviour of the shape memory alloy (SMA) that interacts with martensitic transformation and the associated elastocaloric effect (eCE) still remains challenging. Herein, a thermo-mechanically coupled phase-field fracture model considering the elastocaloric e...

Restraining O–O Dimerization for Highly Reversible Oxygen Redox in a Sodium-Ion Layered-Oxide Cathode

Abstract Activating the oxygen redox reaction in sodium-ion layered-oxide cathodes is a promising approach to elevate the energy density. However, oxygen-redox cathodes typically suffer from poor reversibility. O–O dimerization has been recognized as the underlying driver of irre...

DAC-TS: a decoupling adaptive cooperative approach for fault diagnosis of time series data from cross-modal sensors

Sensor data in industrial applications typically contains severe noise interference, temporal patterns across multiple scales, and physical properties that vary across different domains. To address these challenges, this study proposes a Decoupled Adaptive Cooperative method for...

Preview-Aware LSTM-Assisted Predictive Control for Turboshaft Engines Under Tiltrotor Conversion-Flight Power Demand

Conversion flight turns the aerodynamic versatility of a tiltrotor into a demanding propulsion-control problem. As the nacelles rotate and vertical load transfers from the proprotors to the wing, the two turboshaft engines must follow a rapidly changing shaft-power demand while r...

Dimensionally Consistent Torsional-Stiffness Modeling for Long Flexible Wind-Turbine Blades Using the Variational Asymptotic Method

With the increasing size of wind turbines and the trend toward longer and more flexible blades, the aeroelastic response of blades has become significant. To achieve efficient and high-fidelity modeling, a new approach is required. In this study, a parametric two-dimensional cros...