Results 191 to 200 of about 1,068 (263)

Overdamping of vibration resonances by liquid crystal elastomers. [PDF]

Sci Rep
Elmadih W, Terentjev A, Liang HL, Terentjev E.   +3 more
europepmc   +1 more source

Robust Position Control of an Electro‐Hydraulic Actuator via Metaheuristic Optimization of a Fractional‐Order PID Controller

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, a robust position control strategy is presented for a two‐stage electro‐hydraulic actuator system using a fractional‐order proportional–integral–derivative (FOPID) controller tuned by Kirchhoff's law algorithm (KLA). Electro‐hydraulic systems exhibit strong nonlinearities, parameter uncertainties, and external disturbances ...
Ridvan Firat Cinar, Davut Izci, Serdar Ekinci, Mohammad Salman, Mohammad Al‐Rabayah, Ali Akdagli, Ali Yildiz, Filiz Karaomerlioglu, Gökhan Yüksek   +8 more
wiley   +1 more source

Study on dynamic response analysis of a long-span and asymmetrical suspension bridge subjected to uniform and nonuniform ground motions. [PDF]

Sci Prog
Li J.
europepmc   +1 more source

Design, Analysis, and Experimental Validation of a Variable‐Gap Magnetorheological Damper for Seat Suspension

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT To address the dual challenges of routine driving vibration and impact loads in vehicle seat suspensions, a novel variable‐gap magnetorheological damper (VGMRD) is proposed. By combining a tapered piston with a conformal variable‐diameter cylinder, stroke‐dependent, dual‐mode damping characteristics are achieved without the need for complex ...
Min Wei, Yuchen He, Xiaoting Rui, Yixin Liu, Lilin Gu   +4 more
wiley   +1 more source

Meta-frequency modulation in LQR vibration control with chirp excitation. [PDF]

Sci Rep
Mesbahi S, Roveri N, Milana S, Culla A, Pepe G, Carcaterra A.   +5 more
europepmc   +1 more source

Numerical Modeling of Geological Fault Reactivation Using Sequential Coupling Strategies

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The interaction between fluid flow and mechanical deformation in fault zones can lead to processes of fault reactivation, triggering potential geomechanical problems such as seismicity, well collapse, fluid migration to shallower layers, and aggravated surface subsidence.
Julio Rueda, Cristian Mejia, Roberto Quevedo, Deane Roehl   +3 more
wiley   +1 more source

Stiffness Compensation in Variable Displacement Mechanisms of Swash Plate Axial Piston Pumps Utilizing Piezoelectric Actuators. [PDF]

Materials (Basel)
Zhang G, Ma M, Lin YJ.
europepmc   +1 more source

Advancing Sustainable Composites: Processing and Properties of Bio‐Based Epoxy Resin Reinforced With Flax Fibers

Polymer Composites, EarlyView.
AMPRO BIO/flax fiber composites with different fiber orientations fabricated by vacuum bagging for potential use in biomedical and automotive fields. ABSTRACT Replacing traditional thermoset resins with performing bio‐based alternatives plays a crucial role in the development of new sustainable composite materials.
Elisa Toto, Daniele Tortorici, Rachele Garofolo, Susanna Laurenzi, Maria Gabriella Santonicola   +4 more
wiley   +1 more source

Seismic collapse capacity analysis of degrading SDOF systems with uncoupled negative and positive stiffness mechanism. [PDF]

Sci Rep
Liu Y, Sun F, Xu D, Yang J.
europepmc   +1 more source

Multi‐Scale Characterization of PLA Composites With Natural‐Based Reinforcements: From Filament to 3D‐Printed Parts

Polymer Composites, EarlyView.
Thermal, microstructural, and mechanical characterization of 3D‐printed PLA composite parts. ABSTRACT To address plastic waste and agricultural residue underutilization, this study evaluates the thermal (DSC and FTIR), microstructural (SEM), and mechanical behavior of polylactic acid (PLA) reinforced with flax fibers and olive pit particles, processed ...
P. N. B. Reis, L. Távara, M. Muñoz‐Reja, M. T. Aranda, F. Nur Ainin, M. D. Azaman, L. M. Ferreira   +6 more
wiley   +1 more source