Search Results - "Poursina, Mohammad"

Determination of effective mass for continuous contact models in multibody dynamics by Nikravesh, Parviz E., Poursina, Mohammad

“…Continuous contact models have been popular in representing contact forces between impacting bodies of a multibody system. These models consider the contact…”
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Optimal damping coefficient for a class of continuous contact models by Poursina, Mohammad, Nikravesh, Parviz E.

“…In this study, we develop an analytical formula to approximate the damping coefficient as a function of the coefficient of restitution for a class of…”
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Electrostatic Force and Moment Approximations of Coulomb Charged Spacecraft Based on Center of Charge by Poursina, Mohammad, Butcher, Eric A.

“…A novel analytical formula is developed for the second order approximation of the potential function of a pair of charged spacecraft assuming either…”
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Extended two-body problem for rotating rigid bodies by Ho, Alex, Wold, Margrethe, Conway, John T., Poursina, Mohammad

“…A new technique that utilizes surface integrals to find the force, torque and potential energy between two non-spherical, rigid bodies is presented. The method…”
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Dynamics and optimal control of multibody systems using fractional generalized divide-and-conquer algorithm by Dabiri, Arman, Poursina, Mohammad, Machado, J. A. Tenreiro

“…In this paper, a new framework is presented for the dynamic modeling and control of fully actuated multibody systems with open and/or closed chains as well as…”
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An improved fast multipole method for electrostatic potential calculations in a class of coarse-grained molecular simulations by Poursina, Mohammad, Anderson, Kurt S.

“…This paper presents a novel algorithm to approximate the long-range electrostatic potential field in the Cartesian coordinates applicable to 3D coarse-grained…”
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An extended divide-and-conquer algorithm for a generalized class of multibody constraints by Poursina, Mohammad, Anderson, Kurt S.

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A new model with uniform damping force for frictionless impacts with non-permanent deformation at the time of separation by Poursina, Mohammad, Nikravesh, Parviz E.

“…Abstract This paper presents a new approach to modeling the contact force in continuous method of modeling an impact. This method considers the traditionally…”
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Modified Fast Multipole Method for Coarse-Grained Molecular Simulations by Poursina, Mohammad

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Computed torque control of fully-actuated nondeterministic multibody systems by Sabet, Sahand, Poursina, Mohammad

“…Multibody dynamics plays a key role in the modeling, simulation, design, and control of many engineering problems. The dynamics of these complex systems can be…”
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Optimal Periodic-Gain Fractional Delayed State Feedback Control for Linear Fractional Periodic Time-Delayed Systems by Dabiri, Arman, Butcher, Eric A., Poursina, Mohammad, Nazari, Morad

“…This paper develops the fundamentals of optimal-tuning periodic-gain fractional delayed state feedback control for a class of linear fractional-order periodic…”
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An extended divide-and-conquer algorithm for a generalized class of multibody constraints by Poursina, Mohammad, Anderson, Kurt S.

“…An extension to the divide-and-conquer algorithm (DCA) is presented in this paper to model constrained multibody systems. The constraints of interest are those…”
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Extension of the divide-and-conquer algorithm for the efficient inverse dynamics analysis of multibody systems by Kingsley, Cameron, Poursina, Mohammad

“…This paper presents a new mathematical framework to extend the Generalized Divide-and-Conquer Algorithm (GDCA) for the inverse dynamics analysis of fully…”
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Anisotropic Friction Skin for Holonomic Snake Robot Mobility by Chitikena, Hareesh, Mohammadi, Alireza, Sanfilippo, Filippo, Poursina, Mohammad

“…Achieving effective locomotion for holonomic snake robots in diverse terrains for Search and Rescue (SAR) poses a significant challenge. While biological…”
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Logarithmic complexity dynamics formulation for computed torque control of articulated multibody systems by Kingsley, Cameron, Poursina, Mohammad, Sabet, Sahand, Dabiri, Arman

“…Divide-and-Conquer Algorithm is extended and integrated with the method of Computed Torque Control (CTC) to model and control fully-actuated multibody systems…”
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Efficient embedding of empirically-derived constraints in the ODE formulation of multibody systems: Application to the human body musculoskeletal system by Ehsani, Hossein, Poursina, Mohammad, Rostami, Mostafa, Mousavi, Azin, Parnianpour, Mohamad, Khalaf, Kinda

“…•Musculoskeletal system introduces a new class of multibody systems with anatomical joints.•Empirically-based models can describe coupled motions of the…”
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Canonical ensemble simulation of biopolymers using a coarse-grained articulated generalized divide-and-conquer scheme by Poursina, Mohammad, Anderson, Kurt S.

“…In this paper, a scheme for the canonical ensemble simulation of the coarse-grained articulated polymers is discussed. In this coarse-graining strategy,…”
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Control of Spherical Robots on Uneven Terrains by Sabet, Sahand, Poursina, Mohammad, Nikravesh, Parviz E.

“…Hybrid robots incorporate the advantages of both aerial-only and terrestrial-only vehicles to achieve enhanced mobility and better energy efficiency. Among…”
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Adaptive Coarse-Graining Framework to Model Non-Equilibrium Dynamic Behavior of Biopolymers by Poursina, Mohammad, Anderson, Kurt S.

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Optimization problem and efficient partitioning algorithm for transitions to finer-scale models in adaptive resolution simulation of articulated biopolymers by Poursina, Mohammad, Anderson, Kurt S.

“…Adaptive coarse graining of highly complex biomolecular systems is conducted by either imposing constraints on the system model to generate a coarser model, or…”
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