Results 21 to 30 of about 294,420 (308)

A Review of Low-Frequency Active Vibration Control of Seat Suspension Systems

open access: yesApplied Sciences, 2019
As a major device for reducing vibration and protecting passengers, the low-frequency vibration control performance of commercial vehicle seating systems has become an attractive research topic in recent years.
Yuli Zhao, Xu Wang
doaj   +1 more source

Improved FULMS Algorithm for Multi-Modal Active Control of Compressor Vibration and Noise Reduction

open access: yesApplied Sciences, 2022
Active control is currently a hot-button issue in the research of reducing vibration and noise created by rolling piston compressors. Active control can effectively suppress the modal vibration of the structure and reduce the modal resonance acoustic ...
Xiaowen Wu   +4 more
doaj   +1 more source

Influence of preload and nonlinearity of railpads on vibration of railway tracks under stationary and moving harmonic loads [PDF]

open access: yes, 2015
In railway track dynamics, the stiffness and damping properties of railpads have a significant effect on track vibration, decay rates as well forces transmitted to the track supporting structure.
Bathe K-J   +4 more
core   +1 more source

Adaptive Piezoelectric Absorber for Active Vibration Control

open access: yesActuators, 2016
Passive vibration control solutions are often limited to working reliably at one design point. Especially applied to lightweight structures, which tend to have unwanted vibration, active vibration control approaches can outperform passive solutions.
Sven Herold, Dirk Mayer
doaj   +1 more source

On Active Vibration Absorption in Motion Control of a Quadrotor UAV

open access: yesMathematics, 2022
Conventional dynamic vibration absorbers are physical control devices designed to be coupled to flexible mechanical structures to be protected against undesirable forced vibrations.
Francisco Beltran-Carbajal   +5 more
doaj   +1 more source

Active vibration control device

open access: yesThe Journal of the Acoustical Society of America, 1993
An active vibration control device for controlling vibration in a cantilevered member (12) and a method for the same are disclosed. The device is comprised of a cantilevered member (12) having a longitudinal axis (13) comprising a sensor (92) mounted near the free end of the member (12) to measure motion of the member (12) in a transverse direction and
openaire   +2 more sources

An optimized tuned mass damper/harvester device [PDF]

open access: yes, 2014
Much work has been conducted on vibration absorbers, such as tuned mass dampers (TMD), where significant energy is extracted from a structure. Traditionally, this energy is dissipated through the devices as heat.
Burrow, Steve G   +5 more
core   +3 more sources

Review on Development of High-Static–Low-Dynamic-Stiffness Seat Cushion Mattress for Vibration Control of Seating Suspension System

open access: yesApplied Sciences, 2020
This review focuses on studying passive vibration isolation techniques and their applications. Advantages and disadvantages of different vibration isolation techniques will be compared in order to find an innovative method to reduce seating suspension ...
Linchuan Guo   +3 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Experimental investigation of spillover effect in system of active vibration control [PDF]

open access: yesFME Transactions, 2014
Piezoelectric actuators are widely used in structural systems for active vibration control with the aim to enhance the performance of systems. The developed system of active vibration control consists of active structure, controller and high voltage ...
Jovanović Miroslav M.   +6 more
doaj  

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