Results 51 to 60 of about 433 (168)

A High Efficient Fluid-Structure Interaction Method for Flutter Analysis of Mistuned [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The time cost is very high by direct fluid-structure interaction method for mistuned bladed disk structures, so aerodynamic loads generally are ignored or treated as small perturbations in traditional flutter analysis.

doaj   +1 more source

An Innovative Semiactive Rolling Tuned Mass Damper for Structural Vibration Mitigation

open access: yesStructural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
This study introduces a novel semiactive rolling tuned mass damper (SARTMD) developed to mitigate structural vibrations more efficiently than conventional tuned mass dampers (TMDs), with a primary objective of significantly reducing absorber mass without compromising performance.
Shayan Mazloom   +2 more
wiley   +1 more source

Mistuning analysis of bladed disk consisting of directionally solidified blade (Vibration response analysis by use of response surface method and FMM)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Recently, DS (Directionally Solidified) and SC (Single Crystal) alloys have been widely applied for gas turbine blades instead of CC (Conventionally Casting) alloys.
Yasutomo KANEKO   +2 more
doaj   +1 more source

Probabilistic Bi-Level Assessment and Adaptive Control Mechanism for Two-Tank Interacting System

open access: yesIEEE Access, 2023
Liquid level control is a fundamental aspect employed across various industries, where the precise regulation of liquid levels and flow rates is of utmost importance. The Proportional-integral-derivative (PID)controller is widely employed but in practice,
Saibal Manna   +5 more
doaj   +1 more source

Study on the Load‐Adaptive Control Method of Quasizero Stiffness Vibration Isolator Based on the Semi‐Analytical Solution

open access: yesShock and Vibration, Volume 2025, Issue 1, 2025.
For the quasizero stiffness (QZS) isolators, the mismatch between the stiffness and the load will significantly impact the vibration isolation performance, greatly reducing the isolation efficiency and complicating the load motion. Therefore, a load‐adaptive method is designed innovatively based on a semianalytical solution of the QZS isolator, which ...
Shuyan Xia, Dawei An, Daolin Xu, Yan Niu
wiley   +1 more source

Study on vibration characteristics of steam turbine vanes with large capacity (Vibration response characteristics of half ring structure)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
A vane used in a low pressure end of steam turbine is usually fixed to an inner shroud and an outer ring by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping ...
Yasutomo KANEKO   +3 more
doaj   +1 more source

Vibration Parameters Estimation by Blade Tip-Timing in Mistuned Bladed Disks in Presence of Close Resonances

open access: yesApplied Sciences, 2020
The present paper is focused on the post processing of the data coming from the Blade Tip-Timing (BTT) sensors in the case where two very close peaks are present in the frequency response of the vibrating system.
Saeed Bornassi   +2 more
doaj   +1 more source

Rubbing Dynamics of Dual‐Disk Rotor System Supported by Oil Film Bearing

open access: yesShock and Vibration, Volume 2025, Issue 1, 2025.
As the clearance between the rotor and the casing gradually becomes smaller, the probability of collision and friction increases greatly, the rubbing dynamics of the dual disk‐shaft‐bearing system is studied in this paper. Considering the gyro effect of rotor, a dynamic model of the rotor system under nonlinear oil film force is established; the ...
Guofang Nan   +5 more
wiley   +1 more source

The Origin of the Dominant: Schoenberg's ‘Strong Progression’ and the Realisation of Implied Virtual Pitches

open access: yesMusic Analysis, Volume 43, Issue 2, Page 247-301, July 2024.
ABSTRACT In major‐minor tonality, V implies I, and rising fourths, falling thirds and rising seconds between successive chord roots are more common than falling fourths, rising thirds and falling seconds respectively. Possible explanations involve history (in two‐part medieval counterpoint, harmonic major sixths resolved to octaves – maintained in V–I);
RICHARD PARNCUTT
wiley   +1 more source

Institute for Artificial Intelligence and Fundamental Interactions (IAIFI): Infusing physics intelligence into artificial intelligence

open access: yesAI Magazine, Volume 45, Issue 1, Page 111-116, Spring 2024.
Abstract The NSF AI Institute for Artificial Intelligence and Fundamental Interactions (IAIFI, pronounced /aI‐faI/) is one of the inaugural NSF AI research institutes (https://iaifi.org). The IAIFI is enabling physics discoveries and advancing foundational AI through the development of novel AI approaches that incorporate first principles from ...
Jesse Thaler   +2 more
wiley   +1 more source

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