YaBeSH Digital Library: Recent submissions
Now showing items 9801-9820 of 316660
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Flow Field and Acoustic Studies on a Supersonic Jet with Tabs Having Various Cross Sections
(American Society of Civil Engineers, 2025)Experiments were carried out over an imperfectly expanded supersonic jet at various nozzle pressure ratios with and without tabs of various cross-sectional shapes. The tabs used in the present study have either triangular, ... -
Computational and Experimental Static Stability Analysis of Rectangular Prisms
(American Society of Civil Engineers, 2025)Rectangular prism-shaped cargo containers are being investigated for future aerial delivery and helicopter sling load operations. The aerodynamic stability characteristics of two representative container shapes, the 6-m ... -
Aeroacoustic Investigation of Thin-Airfoil Stall with a View to Improving the BPM Model
(American Society of Civil Engineers, 2025)This paper presents an in-depth investigation into the near-field pressure and far-field acoustic characteristics of a National Advisory Committee for Aeronautics (NACA) 16-506 airfoil across the prestall, stall, and ... -
A Computationally Efficient C0 Continuous Finite-Element Model for Static and Free Vibration Analysis of Delaminated Composite Plates in a Nonpolynomial Axiomatic Framework
(American Society of Civil Engineers, 2025)This study examines the bending and free vibration behaviors of delaminated composite plates using inverse hyperbolic shear deformation theory (IHSDT). This theory incorporates a nonlinear shear stress distribution and ... -
Back-Stepping Fault-Tolerant Control Method of Morphing Aircraft Based on Fixed-Time Neural Network Observer
(American Society of Civil Engineers, 2025)Morphing aircraft hold the advantages of superior performance compared with their conventional counterparts, but face the challenge of robust attitude tracking control given failures and uncertainties coupled with external ... -
Explicit Analytical Solution for Free Vibration of Restrained Orthotropic Plates
(American Society of Civil Engineers, 2025)An approximate explicit analytical solution to the free vibration behavior of orthotropic plates with all edges rotationally restrained against rotation based on the deformation shape function and the Galerkin method is ... -
Effects of Wing Vein Flexibility on the Aerodynamic Characteristics of Dragonfly-Like Wings in Forward Flight
(American Society of Civil Engineers, 2025)The passive deformation of the flexible wing plays a crucial role in enabling insects to generate high lift and efficient flight. This study aims to investigate the impact of wing vein flexibility distributions on the ... -
Gust Response Alleviation with Model-Free Adaptive Control Method in Transonic Flow
(American Society of Civil Engineers, 2025)In transonic flow, nonlinear problems due to shock waves could be induced by gusts, leading to difficulty in acquiring a relatively accurate aerodynamic model in the form of a state equation for gust alleviation, which is ... -
Quantifying Gas Leak Rates through Regolith Feed Columns in Vacuum
(American Society of Civil Engineers, 2025)All in situ resource utilization regolith reactor systems that aim to extract gases or vapors must maintain a seal along the flow path of the regolith from the inlet hopper to where extracted gases or vapors are generated. ... -
Reinforcement Learning–Based Adaptive Fault-Tolerant Antidisturbance Control for UAVs Subjected to External Disturbances, Input Uncertainties, and Structural Uncertainties
(American Society of Civil Engineers, 2025)This paper presents a reinforcement learning (RL)–based adaptive fault-tolerant control scheme for quadrotor unmanned aerial vehicles (UAVs) subjected to external disturbances, input uncertainties, and structural uncertainties. ... -
Dynamic Maneuvering Decision-Making Approach for Ships Navigating Using Ship Routing Systems in a Complex Estuary: A Case Study on the Liuhe River
(American Society of Civil Engineers, 2025)Autonomous ships in different water areas have garnered significant attention. Researchers have gradually expanded their focus from simple open waters to more complex waters. This paper presents a dynamic maneuvering ... -
Time-Efficient Hardware-in-the-Loop Aerodynamic Optimization
(American Society of Civil Engineers, 2025)A hardware-in-the-loop system was created for the purpose of aerodynamic optimization. The system was used for fully independent optimization of an automotive diffuser model in a wind tunnel, with linear actuators used to ... -
Dual Attention Smoothing Adaptation Networks for Aeroengine Multisource Cross-Domain Fault Diagnosis under Category Shift
(American Society of Civil Engineers, 2025)In aeroengine fault diagnosis, domain adaptation-based methods have effectively handled the data distribution shift caused by variations in operating conditions. However, current research mainly focuses on knowledge transfer ... -
Experimental Study of a Novel Circulation Control Device Based on Dual Synthetic Jets
(American Society of Civil Engineers, 2025)This paper proposes a circulation control device based on dual synthetic jets (DSJs), and its control effect was verified by wind tunnel tests. The experimental pressure and aerodynamic forces were measured to test the ... -
Internal Flow Structures in Tip Clearance Based on Time-Resolved Schlieren Visualization and Numerical Simulations
(American Society of Civil Engineers, 2025)Tip clearance flow is a critical feature of the blade tip region in turbomachinery considering the flow losses and instabilities. Simplified blade tip models were tested in a transonic wind tunnel with flow visualized by ... -
Parametric Analysis and Performance Optimization of Landing–Moving Integrated Gear for Mobile Lunar Lander
(American Society of Civil Engineers, 2025)The mobile lunar lander (MLL), a novel lander configuration endowed with both landing and moving capabilities, promises to serve as a mobile habitat for future lunar research station construction. This paper studies the ... -
Flow Mechanism of the Shock Structure and Secondary Flow Control in a Supersonic Compressor with a Nonaxisymmetric Endwall
(American Society of Civil Engineers, 2025)Shock is the main characteristic of supersonic compressors. There are relatively few studies of the control of shock structure and secondary flow in supersonic compressors by nonaxisymmetric endwall optimization. The lack ... -
Identification of Nonlinearity Sources in a Flexible Wing
(American Society of Civil Engineers, 2025)High aspect ratio flexible wings are of increasing interest for enhancing the aerodynamic efficiency of future designs. However, they often exhibit nonlinear dynamic behavior, complicating both testing and analysis. This ... -
SPRP-Based Variable-Fidelity Surrogate Model and Its Application in Helicopter Rotor Aerodynamic Performance Prediction
(American Society of Civil Engineers, 2025)A shape-preserving response prediction (SPRP)-based variable-fidelity model is developed in this paper to improve the computation efficiency in helicopter rotor computational fluid dynamics (CFD). In helicopter rotor CFD, ... -
Uniformly Stiffened Cantilever Plates under Bending
(American Society of Civil Engineers, 2025)A number of studies have shown that T-beams exhibit positive shear lag under bending; however, a detailed stress distribution profile of uniformly stiffened plates is rarely presented. The present study analyzes uniformly ...