ANALYSIS OF DYNAMIC LOAD STRENGTH OF WIND TURBINE ROOT BOLT UNDER TURBULENCE MODEL by HAN Wen, CHEN ChangZheng

“…In this paper,the connecting bolt between blade and pitch bearing of 2 MW wind turbine is taken as the research object,and a dynamic strength analysis model of blade root bolt of wind turbine is established under the conditions of three-dimensional turbulent aerodynamic load,gravity load and centrifugal force load. …”
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Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades by G. Bernardini, E. Piccione, A. Anobile, J. Serafini, M. Gennaretti

“…The process exploits an aeroelastic solver that is based on a nonlinear, beam-like model, suited for the analysis of arbitrary curved-elastic-axis blades, with the introduction of a surrogate wake inflow model for the analysis of sectional aerodynamic loads. Numerical results are presented to demonstrate the capability of the proposed approach to identify low vibratory hub loads rotor blades as well as to assess the robustness of solution at off-design operating conditions. …”
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A Sliding Mode Approach to Vector Field Path Following for a Fixed-Wing UAV by Luca Pugi, Lorenzo Franchi, Samuele Favilli, Giuseppe Mattei

“…This high-fidelity model considers the six-degrees-of-freedom (DoF) whole-flight dynamics of the UAV and it is based on experimental flight test data to implement the aerodynamic behavior.…”
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NUMERICAL INVESTIGATIONS ON THE DYNAMIC BEHAVIOUR OF A 2-DOF AIRFOIL WITH APPLICATION IN ENERGY HARVESTING SYSTEM by Tomasz HANISZEWSKI, Damian GĄSKA, Jerzy MARGIELEWICZ, Tadeusz OPASIAK

“…This article presents the basic airfoil model with two degrees of freedom - the semi-rigid model, where its forced vibrations were considered, and the exciting force is the aerodynamic force, including its periodic changes, that is, gusts. …”
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Numerical and experimental investigation of piezoelectric-pneumatic material jet printing method for high-viscosity ink by Xinyi Hu, Xiaoran Dong, Zhanda Li, Junhui Long, Yuan Jin, Hui Li

“…In this work, a two-dimensional computational fluid dynamics model is presented to elucidate the multiphase aerodynamic phenomenon and deposition morphology of jet printing features. …”
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The Effect of Rigging Angle on Longitudinal Direction Motion of Parafoil-Type Vehicle: Basic Stability Analysis and Wind Tunnel Test by Takahiro Moriyoshi, Kazuhiko Yamada, Hiroyuki Nishida

“…Above all, a parameter called Rigging Angle (RA) is sensitive to the aerodynamic characteristics of a paraglider during flight. …”
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Projection-Based Adaptive Backstepping Control of a Transport Aircraft for Heavyweight Airdrop by Ri Liu, Xiuxia Sun, Wenhan Dong, Guangzhi Xu

“…The results show good performance and robust operation of the controller, and the airdrop mission performance indexes are satisfied, even in the presence of ±15% uncertainty in the aerodynamic coefficients, ±0.01 rad/s pitch rate disturbance, and 20% actuators faults.…”
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Association between Air Pollution and Risk of Hospital Admission for Pediatric Pneumonia in a Tropical City, Kaohsiung, Taiwan by Peng-Huei Liu, Kuo-Chen Huang, Yu-Lun Tseng, I-Min Chiu, Hsiu-Yung Pan, Fu-Jen Cheng

“…Data on PM2.5 (PM with an aerodynamic diameter smaller than 2.5 µm), PM10 (PM with an aerodynamic diameter smaller than 10 µm), sulfur dioxide (SO2), nitrogen dioxide (NO2), and ozone (O3) in each of the 11 air monitoring stations in Kaohsiung city were collected. …”
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RESEARCH OF HCF/LCF COMBINED CYCLE FATIGUE EXPERIMENTAL TECHNIQUE FOR BLADE by YOU Yu, ZHANG Wei, WANG ChunSheng

“…Then,the fatigue experiment of a certain type of ducted tail rotor fan blade under centrifugal load/Low Cycle Fatigue（ LCF） and aerodynamic load/High Cycle Fatigue（ HCF） was developed. …”
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Structure Design of the Force Testing Central Support of a Transonic and Supersonic Wind Tunnel by Dong Bin, Zhou Xiaogang, Wang Tao, Fan Changhai

“…The force testing central support is an important part of the model supporting system in a transonic & supersonic wind tunnel,the performance of which is qualified or not would directly affect the control of model attitude angel during wind tunnel tests.First,aiming at the problem that the roll angle backlash is oversized during force tests,the self-locking dual lead cylindrical worm transmission is applied to the force testing central support to solve this problem.Meanwhile,considering that the aerodynamic load is heavy,the slider and the bulging joining sleeve are both used to share the load.Then,the static structural strength of the worm transmission are checked,and at the same time,the finite element analysis is carried out to study the stress and deformation both in the sustaining body and the chief axis.Finally,the calibration model tests for the new force testing central support in comparison with the former one are conducted.Results indicate that the structural design is reasonable,the data presented a good correlation,and the design of the new force testing support is successful for wind tunnel tests.…”
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Design and Analysis of the Driving Mechanism of Multi-DOF Flapping Wing Aircrafts by wang Wang, Xiaoxu Pang

“…The results show that， the design of a driving mechanism with single degree-of-freedom drive can realize the flutter，torsion，deflection multi-degree-of-freedom coupling movement，and the upper flutter limit is 34.65°，the lower flutter limit is -29.66°，the maximum torsion angle is 15.05°，the minimum torsion angle is -14.9°，the deflection angle range is -5.01°~5.21°； the track wich an "8" word output is the same as that of flying wing tips of small and medium-sized birds，which shows a good aerodynamic performance. The kinematic parameters obtained by simulation are in agreement with the theoretical calculation，which verifies the correctness of the theoretical calculation.…”
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Feasibility of Hydrogen Energy for High-Power Aerospace Applications: A Comprehensive Assessment by Cai Zhenglin

“…Considerations include structural design, aerodynamic characteristics, weight distribution, refueling infrastructure, and regulatory compliance. …”
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Effect of Atmospheric Pollutants on the Air Quality in Tunisia by Karim Bouchlaghem, Blaise Nsom

“…This paper presents the evolution of Saharan dust advection when the PM10 (particles with an aerodynamic diameter below 10 μm) concentration exceeds standard limits in different Tunisian sites. …”
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Desain Transmisi Hidrostatik untuk Roda Penggerak pada Mobil Terbang by Faiz Akbar Pradipta, Mohammad Adhitya

“…A flying car can fulfill two functions, as a vehicle on the road and as an airplane that capable of flying. To reduce aerodynamic drag, the drive wheels must be able to fold so that a flexible transmission system is required. …”
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Response Analysis of Projectile System Under Gaussian Noise Excitation Using Path Integral Method by Liang Wang, Xinyi Li, Jiahui Peng, Zhonghua Zhang, Shuangqi Dong

“…During flight, projectiles are subject to uncertainties such as aerodynamic forces, wind gusts, and measurement errors; all of which significantly affect their stability and accuracy. …”
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A fault tolerant control for iced aircraft based on fixed-time incremental dynamic inversion with FTESO by JIANG Feihong, LIU Xiaoxiong, LIU Zhenbao, LI Yu, CHEN Jiaxin

“…Icing seriously affects the aerodynamic coefficients and flight performance of an aircraft. …”
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Geomorphological Observations and Physical Hypotheses About Martian Dune Gullies by Adriano Nardi, Antonio Piersanti

“…However, these phenomena could originate from the impact of wind on the profiles of some large Martian dunes. This aerodynamic effect could seasonally generate all the meteorological phenomena we observe on these dunes (bodies of ice, frost, moisture trails, and vapor clouds) and as a result, produce gullies with a peculiar morphology different from the standard. …”
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Nonlinear Vibrations of FGM Cylindrical Panel with Simply Supported Edges in Air Flow by Y. X. Hao, W. Zhang, S. B. Li, J. H. Zhang

“…A third-order piston theory is adopted to evaluate the hypersonic aerodynamic load. Here, Galerkin’s method is employed to discretize this continuous nonlinear dynamic system to ordinary differential governing equations involving two degrees of freedom. …”
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Analytical Solution of Heat Conduction from Turbulence with an Isotropic Example by Steven A. E. Miller

“…Aerodynamic heating due to turbulence significantly affects the operation of high-speed vehicles and the entrainment of fluid by turbulent plumes. …”
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Fuel Economy in Truck Platooning: A Literature Overview and Directions for Future Research by Linlin Zhang, Feng Chen, Xiaoxiang Ma, Xiaodong Pan

“…Several studies have proved that traveling in platoons can significantly improve fuel economy due to the reduced aerodynamic drag. However, most literature only provides scattered pieces of information regarding fuel economy in truck platoons. …”
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