Results 31 to 40 of about 22,174,492 (295)

Research Progress on Stability Analysis of Turning Process

open access: yesJournal of Harbin University of Science and Technology, 2019
During the turning process, the instability caused by chatter will cause a very bad influence on the life of the machine tool and the cutting tool, the machining efficiency and the surface quality In order to improve the efficiency and quality of turning
QIN Lei   +3 more
doaj   +1 more source

Flutter Analysis of Propfan–Open Rotors

open access: yesJournal of Aircraft, 2018
This work aims at showing the importance of flutter predictions in the preliminary design of propfan–open rotors. Both single rotating propellers and contrarotating open rotors are investigated.
Prederi, Davide   +3 more
openaire   +1 more source

The Effect of Laminated Layers on the Flutter Speed of Composite Wing

open access: yesJournal of Engineering, 2023
The paper presents an investigation to the flutter speed of composite wing for different ply orientation. Structurally the composite wing was idealized as a composite beam load carrying structure. Theodorsen’s expression was used to get the 2- dimension
Ahmed Abd Al-Hussain Ali   +1 more
doaj   +1 more source

Three dimensional flutter analysis and wind-tunnel experiments of a rectangular sheet supported by a wire (Influence of eccentricity on the flutter characteristics and occurrence condition)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper deals with the flutter analysis of a rectangular sheet supported by a wire in axial flow. In the flutter analysis, Doublet-Point Method based on unsteady lifting surface theory is used to calculate the unsteady fluid force acting on the sheet ...
Keiichi HIROAKI, Masahiro WATANABE
doaj   +1 more source

The effect of laminate lay-up on the flutter speed of composite wings. [PDF]

open access: yes, 2003
This paper presents an analytical study on optimization of a laminated composite wing structure for achieving a maximum flutter speed and a minimum weight without strength penalty.
Guo, Shijun J.   +2 more
core   +1 more source

Research on Flutter Characteristics and Stiffness Design for 15 Meters Span Wing of a Solar-powered Aircraft

open access: yesHangkong gongcheng jinzhan, 2019
Flutter widely happens on solar-powered aircraft due to the slight stiffness and large deformation, so that it is significant to establish the dynamic model of solar-powered aircraft and analyze the flutter characteristics.Firstly, an initial dynamic ...
Mao Yiqing, Yang Fei, Gu Yingsong
doaj   +1 more source

Flutter instability analysis of bridge decks using the step-by-step method

open access: yesVietnam Journal of Mechanics, 2014
The branch switch characteristics of coupled flutter are clarified by use of Step-by-Step flutter analysis. In the case of typically coupled flutter instability, the branch switch characteristic from torsional branch to heaving branch is observed.
Nguyen Van Khang, Tran Ngoc An
doaj   +1 more source

Flutter Condition Estimation for 3-D Cantilever Plate Using Fully Coupled Fluid – Structure Interaction [PDF]

open access: yesEngineering and Technology Journal, 2014
The aeroelastic responses and the flutter condition of 3-D flexible cantilever plate were estimated by developed fully coupled fluid-structure interaction(FSI) approach.
Hayder Sabah Abd Al-Amir   +2 more
doaj   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle   +5 more
wiley   +1 more source

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