Results 61 to 70 of about 5,748 (245)
The Lift Problem in Flapping Forward Flight at Low Reynolds Numbers
, 2015 This paper discusses the relationship between lift generation and flow structures in flapping forward flight at low Reynolds numbers. The simple lift formula for a wing/body in a sufficiently large rectangular control surface is given in the framework ...
Zhang X(张星) +3 more
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FlexMat, EarlyView.Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu +3 more
wiley +1 more source
Journal of Periodontology, EarlyView.Abstract Background Pre‐surgical anxiety (PSA) and pre‐surgical fear (PSF) may hinder patient compliance, while patient satisfaction (PS) is vital for adherence to treatment recommendations. This prospective study investigated the impact of PSA and PSF, and the influence of patient demographics and postoperative pain, on PS after periodontal and ...
Anum Haider +4 more
wiley +1 more source
Unsteady Flow past a Flapping Aerofoil [PDF]
, 2012 : Unsteady flow computations are presented for low speed Mach number flow past a combined pitching and plunging aerofoil. The Implicit Reynolds-averaged Navier-Stokes solver used for obtaining time-accurate solutions is based on finite volume nodal ...
Siva Kumar, K, Sharanappa, Sajjan V
core
Nanjing Hangkong Hangtian Daxue XuebaoThe flapping wing of large bionic ornithopters （LBOs） has obvious flexible deformation during the flapping motion， which is difficult for aerodynamic analysis.
XU Hui +3 more
doaj +1 more source
Flight Dynamics of Flapping-Wing Air Vehicle [PDF]
AIAA Atmospheric Flight Mechanics Conference and Exhibit, 2008 The research and development efforts presented in this paper address the flight dynamics of a flapping-wing air vehicle (ornithopter). The 74-cm-wing-span ornithopter was equipped with an automatic flight control system that provides stability augmentation and navigation of the vehicle and flight data acquisition. Wind tunnel tests were conducted with
Roman Y. Krashanitsa +3 more
openaire +1 more source
Polymer Composites, EarlyView.Overview of the holistic engineering lifecycle and core research pillars for wind turbine blades. ABSTRACT This paper reviews recent advancements across the lifecycle of wind turbine blades, focusing on three interconnected areas: advanced composites, structural optimization, and machine learning (ML) diagnostics. In materials, we highlight progress in
Kemal Hasirci +2 more
wiley +1 more source
Using stereo vision to acquire the flight information of flapping-wing MAVs [PDF]
, 2012 This paper investigates the potential to acquire flight information, including the spatial position and attitude, of a flapping-wing micro-aerial vehicle (MAV) utilizing a stereo-vision system. The flapping-wing MAVused in this paper is the Golden Snitch
Hsiao, Fu-yuen; Hsu, H. K.; Chen, C. L.; Yang, Lung-Jieh; Shen, J. F. +1 more
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AerospaceWith the in-depth study of the unique flight ability of bats in the field of bionic robots, wind-tunnel experiments have become an important means to verify the feasibility of bat-like flying robot structures.
Bosong Duan +4 more
doaj +1 more source
Design and Coupling Dynamics Research of a Single-drive Multi-mode Flapping-wing Aircraft
Jixie chuandong, 2023 Aiming at the problems of single flapping wing movement mode and low flight flexibility and stability of flapping-wing aircraft, a single-drive multi-mode flapping-wing aircraft based on the space linkage mechanism is designed. The kinematic model of the
Jiang Houqing, Hou Yu, Guo Yongxing
doaj