Results 91 to 100 of about 547,181 (307)
Adaptive inverse control for helicopter vibration reduction [PDF]
The reduction or alleviation of helicopter vibration will reduce maintenance requirements while at the same time increase ride quality and helicopter reliability.
Jacklin, S. A.
core +1 more source
Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May +9 more
wiley +1 more source
Shock and Vibration, 1994 The impulse response functions (force-strain relations) for Euler–Bernoulli and Timoshenko beams are considered. The response of a beam to a transverse impact force, including reflection at the boundary, is obtained with the convolution approach using ...
Hyungsoon Park, Youn-sik Park
doaj +1 more source
Advanced Engineering Materials, EarlyView.Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni +7 more
wiley +1 more source
Study on Construction Methods Optimization for Subway Sound Barrier Project
Chengshi guidao jiaotong yanjiu[Objective] The construction of subway sound barriers is characterized by complex foundation treatment, low installation efficiency and high risk of high-altitude operations, leading to extended construction period, higher costs and hidden quality risks.
YANG Lei, WANG Lixiao
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Reducing initial peak force through chamfered triggers: A study on thin-walled tubular structures for energy absorption and crash protection [PDF]
AIP AdvancesThin-walled tubular structures play a significant role in energy absorption owing to their lightweight nature, low cost, and high specific energy absorption, which are widely applied in crash resistance in aerospace and vehicle fields.
Jin Wu +4 more
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Viewgraphs on vibration isolation are presented. Techniques to control and isolate centrifuge disturbances were identified. Topics covered include: disturbance sources in the microgravity environment; microgravity assessment criteria; life sciences ...
Bastin, Paul
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Advanced Engineering Materials, EarlyView.This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann +4 more
wiley +1 more source
Prediction for Outlet Noise of Rolling Piston Comperssor
MATEC Web of Conferences, 2015 An acoustic wave equation with considering small perturbation is presented first by use of the fluidic mechanics and aerodynamics, then a theoretical model for predicting the outlet noise of rolling piston compressors is investigated, and the sound ...
Zhang Tieshan
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Determining structural performance [PDF]
An overview of the methods and concepts developed to enhance and predict structural dynamic characteristics of advanced aeropropulsion systems is presented. Aeroelasticity, vibration control, dynamic systems, and computational structural methods are four
Brown, Gerald +9 more
core +1 more source