Browsing Journal of Aerospace Engineering by Issue Date
Now showing items 1-20 of 2238
-
Hybrid Nonlinear Seismic Analysis of Bridges with Moving Traffic
(ASCE, 1/1/2020 1)Owing to current limitations on seismic forecasting, there is a high chance that a considerable number of vehicles will remain on bridges when an earthquake occurs. In traditional seismic analyses, traffic loads were often ... -
Influence of Staggering and Interdistance on Performance of a Low-Speed Counterrotating Axial Fan
(ASCE, 1/1/2020 1)Counterrotating axial fans (CRF) are being adopted in air ventilation to meet the demand for a higher pressure head and swirl-free discharge. This experimental and numerical study is aimed at investigating the influence ... -
Aeroelastic Wind Tunnel Testing on the Wind-Induced Dynamic Reaction Response of Transmission Line
(ASCE, 1/1/2021)An overhead transmission line system is a typical wind-sensitive structure with high flexibility, light weight, and low structural damping. Wind-induced dynamic reaction of the transmission line system is a determining ... -
Wind Tunnel Model Design and Aeroelastic Measurements of the RIBES Wing
(ASCE, 1/1/2021)Several experimental databases of aeroelastic measurements performed on aircraft wing models are available for the validation of fluid–structure interaction (FSI) numerical methodologies. Most of these databases are used ... -
Hypersonic Incident Shock-Boundary Layer Interaction Control by Wavy Patches
(ASCE, 1/1/2021)Shock-boundary layer interaction (SBLI) at hypersonic inlets can alter the flow pattern and impose adverse effects on engine operation if not controlled. A two-dimensional surface modification in the form of a sinusoidal ... -
Derivation of a Wing-Weight Estimation Equation for a Roadable Personal Air Vehicle Using Regression Analyses of Data Obtained from Wing Planform Reference Points
(ASCE, 1/1/2021)Estimating the wing weights of personal air vehicles (PAVs) is limited by lack of comparable data, as there were no PAV data available to the public. In this study, the limits were confirmed by verifying estimation equations ... -
Experimental Investigation of Effect of Winglets on the Aerodynamic Performance of a Mini UAV
(ASCE, 1/1/2021)This experimental investigation focuses on the feasibility of attaching winglets to an indigenously developed fixed-wing mini unmanned aerial vehicle (UAV) to improve its aerodynamic efficiency. Winglets are well known for ... -
Indirect Optimization of Underactuated Spacecraft Formation Reconfiguration in Elliptic Orbits
(ASCE, 1/1/2021)This paper proposes analytical solutions to optimal underactuated spacecraft formation reconfiguration in elliptic orbits, without either the radial or in-track thrust. For either underactuated case, the dynamical model ... -
Assessments of Structural Health Monitoring for Fatigue Cracks in Metallic Structures by Using Lamb Waves Driven by Piezoelectric Transducers
(ASCE, 1/1/2021)In this paper, the assessments of structural health monitoring (SHM) for metallic structures are presented. Tests were conducted on three specimens for fatigue crack testing and damage index measurements. In each specimen, ... -
Validation of Structural Modeling for Realistic Wing Topologies Involved in FSI Analyses: RIBES Test Case
(ASCE, 1/1/2021)The procedures that couple finite-element method (FEM) solutions and fluid dynamic solvers to develop so-called high-fidelity fluid–structure interaction (FSI) numerical methods involve a series of awkward processes that ... -
Hierarchical Collaborative Navigation Method for UAV Swarm
(ASCE, 1/1/2021)Unmanned aerial vehicle (UAV) swarm technology can expand the working scope of tasks and improve the overall task efficiency. Traditional single leader-follower fusion algorithms for cooperative navigation cannot fully ... -
Uncertainty Analysis of the Dynamic Responses of a Transmission Tower-Line System Subjected to Cable Rupture
(ASCE, 1/1/2021)Because transmission tower-line systems are always exposed to the natural environment, such structures are vulnerable to various meteorological conditions, and the rupture of a transmission line is a particularly serious ... -
Spatial Tailoring of a Metal-Ceramic Composite Panel Subjected to High-Speed Flow
(ASCE, 1/1/2021)In this paper, an optimization-based computational framework for the spatial tailoring of a metal-ceramic composite panel subjected to high-speed flow is discussed. The framework includes the modeling, evaluation, and ... -
Stabilization of the Cyclic Response of the Ni49.9 Ti50.1 Shape Memory Actuators under Thermomechanical Loads
(ASCE, 1/1/2021)This work is focused on the development of a novel strategy to achieve dimensional stability for 55NiTi actuators that operate at a relatively higher temperature; i.e., with an austenite finish temperature, Af, greater ... -
New Cone-Rolling Principle and Its Application for the Underactuated Attitude Maneuver Optimization of a Rigid Body
(ASCE, 1/1/2021)The global optimal solution for the underactuated attitude maneuver plays a significant role in the fields of spacecraft, robotics, and mechanics. This paper investigated the global optimal underactuated attitude maneuver ... -
Wind Tunnel Investigations of Aeroelastic Electricity Transmission Tower under Synoptic and Typhoon Winds
(ASCE, 1/1/2021)Wind tunnel tests of an aeroelastic tower model at a length scale of 1∶40 were conducted to investigate the dynamic responses of an electricity transmission tower under synoptic and typhoon winds. The aeroelastic tower ... -
On-Site Measured Gust Response Factors of Transmission Towers Based on SHM System
(ASCE, 1/1/2021)Many transmission towers have collapsed during typhoon events, and the design wind loads in most current standards consider only the turbulence characteristics of monsoons. The gust response factor (GRF) is a parameter ... -
Structural Damage Diagnosis Based on the Temporal Moment of Partially Measured Structural Responses
(ASCE, 1/1/2021)Structural damage diagnosis is still a challenging task because most current methods are either insensitive to local structural damage or sensitive to measurement noise. A statistical moment–based structural damage detection ... -
Design, Verification, and Test of the Bridge Structure Vibration Similarity Model
(ASCE, 1/1/2021)At present, the method of model testing is rarely used to study the low-frequency vibration problems of bridge structures, because it is difficult to keep the similarity between the bridge model and the prototype in model ... -
Robust Adaptive Iterative Learning Control for High-Precision Attitude Tracking of Spacecraft
(ASCE, 1/1/2021)In this paper, a robust adaptive iterative learning control (ILC) scheme is developed for the high-precision attitude tracking control of spacecraft in the presence of parametric uncertainties and external disturbances. ...