Results 151 to 160 of about 561 (262)

An Improved Air Film Model for Studying the Tilt Characteristics of Aerostatic Thrust Bearings

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, an improved mass‐spring model that treats the lubricating air film as distributed springs is proposed to calculate the static and dynamic angular stiffness of aerostatic thrust bearings. The proposed model refines the traditional mass‐spring model by introducing the spatially varying mechanical properties of the air film and the
Hui Zhuang, Jianguo Ding, Yu Chang
wiley   +1 more source

Seismic performance of multistory frames with novel self-centering friction SMA dampers. [PDF]

Sci Rep
Li W, Chang Z, Han M, Li J, Jin Q, Liu B.   +5 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

Optimization of air conditioning mechanical ventilation using simulated annealing for enhanced energy efficiency and cost reduction. [PDF]

Sci Rep
Bandarra Filho EP, Martins G, Riaz MB, Bilal SM, Mendonza OSH.   +4 more
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

6DOF Aircraft Landing Gear System with Magnetorheological Damper in Various Taxing and Touchdown Scenarios. [PDF]

Micromachines (Basel)
Luong QV, Le QN, Hwang JH, Ho TM.
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

Viscoelasticity during development: What is it? and why should you care? [PDF]

Semin Cell Dev Biol
Dong Y, Maiti S, Davidson LA.
europepmc   +1 more source

Value‐Added Recycling of Beverage Carton Waste Into Thermoplastic Sandwich Structures With Enhanced Energy Absorption and Damping Properties

Polymer Composites, EarlyView.
Preparation of lightweight composite panels from multilayer beverage carton waste. ABSTRACT Beverage carton waste, a multi‐layer composite of cardboard, polymer, and aluminum, presents significant recycling challenges for conventional recovery technologies. This work presents a manufacturing process‐oriented method that allows shredded beverage cartons
Csenge Tóth, Róbert Nagy, Ábris Dávid Virág   +2 more
wiley   +1 more source

The mechanics of the squash nick shot. [PDF]

Proc Natl Acad Sci U S A
Ravisankar M, Federle ME, Bahadori M, Das A, Kesari H, Zenit R.   +5 more
europepmc   +1 more source