A5087394728- Granular flow and fluidized beds
- Fractional Differential Equations Solutions
- Fluid Dynamics Simulations and Interactions
- Vibration and Dynamic Analysis
- Landslides and related hazards
- Particle Dynamics in Fluid Flows
- stochastic dynamics and bifurcation
- Aerosol Filtration and Electrostatic Precipitation
- Soil, Finite Element Methods
- Hydraulic and Pneumatic Systems
- Soil Mechanics and Vehicle Dynamics
- Advanced Control Systems Design
- Geotechnical and Geomechanical Engineering
- Structural Health Monitoring Techniques
- Chaos control and synchronization
- Material Dynamics and Properties
- Rock Mechanics and Modeling
- Numerical methods for differential equations
- Acoustic Wave Phenomena Research
Northeastern University
2022-2025
The study of the motion behavior self-propulsion intruders in granular materials is significant importance fields robotics and biomimetics. This experimentally investigates ascent a quasi-two-dimensional system and, through discrete element method simulations, reveals underlying mechanisms intruder's its mesoscopic impact on media. results show that excitation force induces local fluidization particles generates flow compresses space beneath intruder. primary cause ascent. Based these...
The structural properties of particulate matter can significantly affect the rheology system. We report evolution and flow dense granular flows induced by Couette shear try to reveal relationship between them. In unidirectional shear, monodisperse particles undergo a transformation from disorder order. Throughout this continuous process, both velocity strain rate experience alterations. By filling with varying polydispersity, potential system be controlled, thereby influencing extent...
The yielding transition in dense granular matter under vibrated beams, despite its significance for animal and robotic locomotion on surfaces underground structural engineering, remains underexplored. In this study, we systematically modulate the frequency amplitude of beam vibrations through experiments simulations to investigate relaxation dynamics. We uncover dual behaviors: gradual, ductile transitions time domain, where system smoothly stabilizes, abrupt, brittle characterized by sharp...
The nonlinear restoring force (NRF) generated by the collision and friction between particles structures is leading cause of complex dynamic response granules-structures coupled vibrating system (GSCVS). Identification NRF can provide critical information for post-event damage diagnosis structural design immersed structures. However, spatial distribution near are diverse complex, making it difficult to describe with an accurate mathematical model. This paper proposed a data-based...
A coupled dynamical system of a vibrating plate buried in particles is established using the discrete element method, and effect particle material parameters on vibration behavior investigated. Meanwhile, parameter identification method based time-domain signal proposed applied to obtain additional plate. The results show that can significantly affect behaviors, nonlinear jumping phenomenon observed our previous experiment appears when elastic modulus sufficient. negative mass found certain...