Results 221 to 230 of about 22,051 (255)

Parameter Adaptation of Reduced Order Models for Three-Dimensional Flutter Analysis

42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004
The accurate prediction of flutter for large 3-D structures in the transonic flight regime requires the construction of high-fidelity models of the fluid system in order to represent the complex flow characteristics present in this nonlinear regime. The computational expense can be quite considerable when the model is large (many degrees of freedom ...
Thuan Lieu, Michel Lesoinne
openaire   +1 more source

Data-driven stability analysis via the superposition of reduced-order models for the flutter of circular cylinder submerged in three-dimensional spanwise shear inflow at subcritical Reynolds number

Physics of Fluids, 2022
In this paper, we present a novel data-driven theory for the stability analysis of a flow-induced vibration (FIV) system consisting of an elastically mounted circular cylinder submerged in three-dimensional (3D) spanwise shear inflow at a subcritical Reynolds number.
Zhi Cheng, Fue-Sang Lien, Earl H. Dowell, Ryne Wang, Ji Hao Zhang   +4 more
openaire   +1 more source

Anatomical characteristics of the cavotricuspid isthmus in patients with and without typical atrial flutter: Analysis with two- and three-dimensional intracardiac echocardiography

Journal of Interventional Cardiac Electrophysiology, 2007
The cavotricuspid isthmus (CTI) is crucial in the ablation of typical atrial flutter (AFL), and consequently the CTI anatomy and/or its relation to resistant ablation cases have been widely described in human angiographic studies. Intracardiac echocardiography (ICE) has been shown to be a useful tool for determining detailed anatomical information ...
Yasuo, Okumura, Ichiro, Watanabe, Sonoko, Ashino, Masayoshi, Kofune, Takeshi, Yamada, Yasuhiro, Takagi, Kazunori, Kawauchi, Kimie, Okubo, Kenichi, Hashimoto, Atsushi, Shindo, Hidezou, Sugimura, Toshiko, Nakai, Satoshi, Saito   +12 more
openaire   +2 more sources

Supersonic Flutter Analysis Based on Three-Dimensional Local Piston Theory with Viscous Correction

AIAA Journal
Traditional supersonic flutter analysis methods exhibit inherent limitations owing to their inability to account for viscous effects and failure under nonzero angle of attack (AOA) conditions. This research carried out a three-dimensional (3-D) discretization form of local piston theory (3D-LPT).
Wang Gaozhan, Zhang Xin, Song Chen, Xie Changchuan, An Chao   +4 more
openaire   +1 more source

Hypersonic flutter analysis based on three-dimensional local piston theory

Hypersonic vehicle has become a research hotspot these years. Hypersonic vehicles’ characteristics and working conditions led to special and significant aeroelastic flutter problems. Meanwhile, traditional flutter analysis methods are no longer suitable for super/hypersonic conditions.
Wang, Gaozhan, Xie, Changchuan, Liu, Chenyu, An, Chao   +3 more
openaire   +1 more source

Establishment of a three-dimensional multi-modal implicit time-domain method and its application in nonlinear flutter analysis

Physics of Fluids
Three-dimensional (3D) flutter theory is crucial in bridge flutter research. The existing multi-modal time-domain method suffers from low computational efficiency, and there's no clear approach to determine the initial vibration parameters for 3D multi-modal systems.
Jiayong He, Chuanjin Yu, Wanli Yan, Yongle Li, Shanwu Li   +4 more
openaire   +1 more source

Nonlinear analysis of flutter generated on a rectangular sheet in three-dimensional flow:

The Proceedings of the Dynamics & Design Conference, 2021
Keiichi HIROAKI, Masahiro WATANABE
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Analysis of three-dimensional fluttering characteristics of elastic sheets for tidal current power generation

The Proceedings of the Fluids engineering conference, 2021
Koki NAKAMURA, Masaki YAMAGISHI, Hiromichi OBARA   +2 more
openaire   +1 more source

Three-dimensional nonlinear flutter analysis of long-span bridges by multimode and full-mode approaches

Journal of Wind Engineering and Industrial Aerodynamics, 2023
Kai Li, Yan Han, Jun Song, C.S. Cai, Peng Hu, Zhixiong Qiu   +5 more
openaire   +1 more source

Nonlinear stochastic flutter analysis of a three-degree-of-freedom wing in a two-dimensional flow field under stochastic perturbations

Aerospace Science and Technology, 2023
Ying Hao, Chao Ma, Yuda Hu
openaire   +1 more source