Results 11 to 20 of about 288,428 (355)

A Multi-Sensor Stochastic Energy-Based Vibro-Localization Technique with Byzantine Sensor Elimination

Sensors, 2023
This paper presents an occupant localization technique that determines the location of individuals in indoor environments by analyzing the structural vibrations of the floor caused by their footsteps.
Murat Ambarkutuk, Sa’ed Alajlouni, Pablo A. Tarazaga, Paul E. Plassmann   +3 more
doaj   +1 more source

Improved Denoising of Structural Vibration Data Employing Bilateral Filtering

Sensors, 2020
With the continuous advancement of data acquisition and signal processing, sensors, and wireless communication, copious research work has been done using vibration response signals for structural damage detection.
Ning Liu, Thomas Schumacher
doaj   +1 more source

Influence of Weak Structural Vibrations on a Machine-Driven Chain of Mechanical Oscillators with Friction under Varying Normal Forces

Machines, 2023
This work presents a real mechatronic system consisting of coupled inertia oscillators affected by relatively high-frequency structural vibrations. The system’s basic mathematical description is also provided.
Paweł Olejnik
doaj   +1 more source

Analysis on the Possibility of Eliminating Interference from Paraseismic Vibration Signals Induced by the Detonation of Explosive Materials

Sensors, 2020
This article presents the results of studies on the impact of acoustic waves on geophones and microphones used to measure airblasts carried out in a reverberation chamber.
Józef Pyra, Maciej Kłaczyński, Rafał Burdzik   +2 more
doaj   +1 more source

Testing Walking-Induced Vibration of Floors Using Smartphones Recordings

Robotics, 2020
Smartphone technology is rapidly evolving, adding sensors of growing accuracy and precision. Structural engineers are among customers who indirectly benefit from such technological advances.
Luca Martinelli, Vitomir Racic, Bruno Alberto Dal Lago, Francesco Foti   +3 more
doaj   +1 more source

Adaptive Feedforward Control for Gust-Induced Aeroelastic Vibrations

Aerospace, 2018
This paper demonstrates the implementation of an adaptive feedforward controller to reduce structural vibrations on a wing typical section. The aeroelastic model includes a structural nonlinearity, which is modelled in a polynomial form.
Yongzhi Wang, Andrea Da Ronch, Maryam Ghandchi Tehrani   +2 more
doaj   +1 more source

Shannon Entropy in Stochastic Analysis of Some Mems

Energies, 2022
This work is focused on the numerical determination of Shannon probabilistic entropy for MEMS devices exhibiting some uncertainty in their structural response.
Marcin Kamiński, Alberto Corigliano
doaj   +1 more source

A review on control methodologies of disturbance rejections in optical telescope

Opto-Electronic Advances, 2019
Structural vibrations in Tip-Tilt modes usually affect the closed-loop performance of astronomically optical telescopes. In this paper, the state of art control methods-proportional integral (PI) control, linear quadratic Gaussian (LQG) control ...
Tang Tao, Niu Shuaixu, Ma Jiaguang, Qi Bo, Ren Ge, Huang Yongmei   +5 more
doaj   +1 more source

Vision-Based Vibration Monitoring of Structures and Infrastructures: An Overview of Recent Applications

Infrastructures, 2020
Contactless structural monitoring has in recent years seen a growing number of applications in civil engineering. Indeed, the elimination of physical installations of sensors is very attractive, especially for structures that might not be easily or ...
Alessandro Zona
doaj   +1 more source

Rheo-acoustic gels: Tuning mechanical and flow properties of colloidal gels with ultrasonic vibrations

, 2020
Colloidal gels, where nanoscale particles aggregate into an elastic yet fragile network, are at the heart of materials that combine specific optical, electrical and mechanical properties. Tailoring the viscoelastic features of colloidal gels in real-time
Ahouré, L. Christian, Dagès, Noémie, Gibaud, Thomas, Hengl, Nicolas, Jung, Guillaume, Lidon, Pierre, Manneville, Sébastien, Pignon, Frédéric, Poulesquen, Arnaud, Sztucki, Michael   +9 more
core   +3 more sources