Results 41 to 50 of about 294,420 (308)

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

The Design and Analysis of Active–Passive Hybrid Vibration Isolation Mounts Applied in Pump

open access: yesScience and Technology of Nuclear Installations
Pump vibrations are noticeable in a wide frequency range when the nuclear power plant is operating, particularly in the low frequencies when line-spectrum vibrations are evident and complicated.
Jia Liu   +6 more
doaj   +1 more source

A Study on Influence of Flapping Dynamic Characteristics on Vibration Control of Active Rotor with Trailing-Edge Flaps

open access: yesAerospace, 2023
An active rotor with trailing-edge flaps (TEFs) is an effective active vibration control method for helicopters. Blade flapping dynamic characteristics have a significant effect on the active vibration control performance of an active rotor.
Xiancheng Gu   +3 more
doaj   +1 more source

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat   +5 more
wiley   +1 more source

Research on Vibration Control of Seating System Platform Based on the Cubic Stewart Parallel Mechanism

open access: yesIEEE Access, 2019
A multi-degree-of-freedom seating system platform based on the cubic Stewart parallel mechanism is designed for vibration control of an off-road vehicle driver's seat.
Fengrong Bi   +4 more
doaj   +1 more source

Servo-controlled decoupler eliminates oscillations in fluid flow - A concept [PDF]

open access: yes, 1971
Active control technique, using accelerometer-controlled servovalve to operate a compensating piston, effectively eliminates pressure fluctuations due to longitudinal structural vibration within a relatively long ...
Fenwick, J. R.
core   +1 more source

Terahertz sum-frequency excitation of a Raman-active phonon [PDF]

open access: yes, 2017
In stimulated Raman scattering, two incident optical waves induce a force oscillating at the difference of the two light frequencies. This process has enabled important applications such as the excitation and coherent control of phonons and magnons by ...
Kampfrath, Tobias   +3 more
core   +2 more sources

Elinvar Materials: Recent Progress and Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Adaptive active vibration isolation – A control perspective

open access: yesMATEC Web of Conferences, 2015
In many classes of applications like active vibration control and active noise control, the disturbances can be characterized by their frequencies content and their location in a specific region in the frequency domain.
Landau Ioan Doré   +3 more
doaj   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

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