Sharif Digital Repository

Passive dynamic object manipulation: preliminary definition and examples / B. Beigzadeh, A. Meghdari, S. Sohrabpour.

Author

Beigzadeh, B.

Subjects

Passive systems. / Dynamic manipulation. / Passive manipulation. / Robotic system.

Buckling analysis of nonlocal anisotropic thin-walled cylindrical shells subject to combined loading

Author

Ghavanloo, E.

Publisher

American Society of Civil Engineers (ASCE),

Pub. Year

2016

Subjects

Nonlocal elasticity. / Thin-walled cylindrical shell. / Anisotropy. / Buckling. / Cylinders (shapes) / Elasticity. / Thin walled structures. / Axial compressive forces. / Circular cylindrical shells. / Cylindrical shell. / Equilibrium equation. / Governing equations. / Non-local elasticities. / Non-local elasticity theories. / Strain-displacement relation. / Shells (structures)

A new technique of the "first and second limits" for wagon maintenance in railway tracks consisting of sharp curves based on the empirical study of wheel wear

Author

Salehi, S. M.

Publisher

Sharif University of Technology,

Pub. Year

2017

Subjects

Empirical study. / Maintenance technique. / Sharp curves. / Wagon's maintenance cost enhancement. / Wheel flange wear behavior. / Wheel longevity enhancement. / Wheel wear. / Cost benefit analysis. / Costs. / Flanges. / Maintenance. / Railroad tracks. / Railroads. / Transportation. / Vehicles. / Empirical studies. / Maintenance cost. / Sharp curve. / Wear behaviors. / Wheel wears. / Wheels. / Analytical method. / Cost analysis. / Empirical analysis. / Geometry. / Longevity. / Maintenance. / Railway. / Railway construction. / Train. / Vehicle component. / Wear. / Iran.

A study on the contact ellipse and the contact pressure during the wheel wear through passing the tracks including several sharp curves

Author

Salehi, S. M.

Publisher

Materials and Energy Research Center,

Pub. Year

2018

Subjects

Empirical study. / Maintenance technique. / Wheel flange wear. / Wheel longevity enhancement. / Wheel wear. / Flanges. / Geometry. / Maintenance. / Vehicle wheels. / Contact pressures. / Empirical studies. / Hertz contact theory. / Order polynomials. / Sharp Curved Railways. / Wheel flanges. / Wheel wears. / Wheel/rail contact. / Railroads.

Dynamic behavior of worn wheels in a track containing several sharp curves based on field data measurements and simulation

Author

Salehi, S. M.

Publisher

Sharif University of Technology,

Pub. Year

2019

Subjects

Derailment ratio. / Dynamic simulation. / Field data measurement. / Sharp curves. / Wear index. / Wheel flange wear. / Computer simulation. / Derailments. / Flanges. / Passenger cars. / Railroad transportation. / Vehicles. / Cost efficiency. / Dynamic behaviors. / Field data measurements. / Field measurement. / Railway system. / Sharp curve. / Wheel flanges. / Wheel profile. / Wheels. / Breakthrough curve. / Efficiency measurement. / Field method. / Safety. / Simulation.

Dynamic behavior of worn wheels in a track containing several sharp curves based on field data measurements and simulation

Author

Salehi, S. M.

Publisher

Sharif University of Technology,

Pub. Year

2019

Subjects

Derailment ratio. / Dynamic simulation. / Field data measurement. / Sharp curves. / Wear index. / Wheel flange wear. / Computer simulation. / Derailments. / Flanges. / Passenger cars. / Railroad transportation. / Vehicles. / Cost efficiency. / Dynamic behaviors. / Field data measurements. / Field measurement. / Railway system. / Sharp curve. / Wheel flanges. / Wheel profile. / Wheels. / Breakthrough curve. / Efficiency measurement. / Field method. / Safety. / Simulation.

How to find spatial periodic orbits around the moon in the TBP

Author

Aram, A.

Pub. Year

2012

Subjects

Chaotic orbit. / Chaotic orbits. / Effective algorithms. / Periodic orbits. / Position errors. / Restricted three body problem. / Spatial periodic orbits. / Three-body problem. / Algorithms. / Chaos theory. / Orbits. / Algorithm. / Chaotic dynamics. / Error analysis. / Moon. / Numerical model.

Space station on spatial periodic orbits around the Moon

Author

Aram, A.

Pub. Year

2011

Subjects

Floquet exponent. / Floquet theory. / Restricted three body problem. / Space station. / Floquet exponents. / Floquet theory. / Interplanetary mission. / Periodic orbits. / Space missions. / Spatial periodic orbits. / Chaos theory. / Interplanetary flight. / Space stations. / Orbits. / Moon. / Satellite mission. / Space technology.

Passive dynamic object manipulation: A framework for passive walking systems

Author

Beigzadeh, B.

Pub. Year

2013

Subjects

Dynamic systems. / Object manipulation. / Passive manipulation. / Passive walking. / Robotics. / Chaotic behaviour. / Dynamic equations of motion. / Initial conditions. / Interaction forces. / Passive manipulators. / Dynamical systems. / Equations of motion. / Manipulators.

Manipulation of multibody active objects using simple passive manipulators

Author

Beigzadeh, B.

Pub. Year

2010

Subjects

Active object. / Multi-body. / Multi-link. / Passive manipulators. / Manipulators. / Mechanical engineering. / Process control.

Study of shape memory effect in NiMnGa Magnetic Shape Memory Alloy single crystals by incremental modeling

Author

Khajehsaeid, H.

Pub. Year

2010

Subjects

Incremental model. / Magnetic shape memory alloys. / Magnetic-field-induced strain. / Superelastic behavior. / Active material. / Analytical expressions. / Equivalent stress. / Experimental observation. / Good correlations. / Heat transformations. / Incremental modeling. / Incremental models. / Magnetic field-induced strain. / Martensitic variants. / Mechanical stress. / Secant modulus. / Sensor and actuators. / Shape memory alloy. / Special properties. / Super elastic behavior. / Theoretical result. / Variable stress. / Alloys. / Composite beams and girders. / Excitons. / Magnetic fields. / Martensitic transformations. / Single crystals. / Strain. / Stress-strain curves. / Stresses. / Systems analysis. / Shape memory effect.

Passive dynamic object manipulation: preliminary definition and examples

Author

Beigzadeh, B.

Pub. Year

2010

Subjects

Dynamic manipulation. / Dynamic equations of motion. / Dynamic object manipulation. / Future directions. / Interaction forces. / Passive manipulation. / Passive systems. / Robotic system. / Robotic systems. / Equations of motion. / Robots. / Robotics.

Control and manipulation of multibody objects

Author

Beigzadeh, B.

Pub. Year

2010

Subjects

Active object. / Multi-body. / Multi-link. / Planar manipulator. / Manipulators. / Systems analysis. / Process control.

Spatial limit cycles around the moon in the TBP

Author

Aram, A.

Pub. Year

2010

Subjects

Space station. / Floquet theory. / Limit cycle. / Lyapunov exponent. / Out-of-plane velocity. / Restricted three-body problem. / Unstable limit cycles. / Chaotic systems. / Delta sigma modulation. / Force measurement. / Lyapunov methods. / Orbits. / Space stations. / Differential equations.

Structural synthesis of 5 DoFs 3T2R parallel manipulators with prismatic actuators on the base

Author

Motevalli, B.

Pub. Year

2010

Subjects

5 DoFs. / Kinematics. / Parallel mechanism. / Structural synthesis. / Control command. / Degree of coupling. / Degrees of freedom. / Geometrical analysis. / Kinematic Analysis. / Linear transformation. / Low-cost construction. / Manufacturability. / Parallel kinematics. / Parallel manipulators. / Parallel mechanism. / Actuators. / Linear transformations. / Manipulators. / Mechanisms. / Degrees of freedom (mechanics)

An additive theory for finite elastic-plastic deformations of the micropolar continuous media

Author

Ramezani, S.

Pub. Year

2009

Subjects

Additive decomposition. / Arbitrary number. / Continuous media. / Drucker Prager yield criterion. / Elastic-Plastic. / Elastic-plastic deformation. / Finite deformations. / Finite elastic deformations. / Flow theories. / Internal variables. / Kinematic hardening. / Micropolar. / Micropolar continuum. / Micropolar material. / Rate of deformation tensor. / Singular surfaces. / Skew-symmetric. / Stress tensors. / Constitutive equations. / Elastic deformation. / Elasticity. / Elastoplasticity. / Tensors. / Plastic parts.

Constitutive equations for micropolar hyper-elastic materials

Author

Ramezani, S.

Pub. Year

2009

Subjects

Constitutive equations. / Hyper-elasticity. / Elasticity tensors. / Finite element formulations. / Fourth orders. / Homogeneous state. / Hyper elastics. / Lagrangian. / Linear elasticity theories. / Loading conditions. / Micron levels. / Micropolar. / Micropolar continuum. / Micropolar effects. / Mooney-Rivlin materials. / Neo-Hookean materials. / Representation theorems. / Channel flow. / Continuum mechanics. / Deformation. / Elasticity. / Materials.

Analysis of micropolar elastic beams

Author

Ramezani, S.

Pub. Year

2009

Subjects

Continuum mechanics. / Elasticity. / Loading. / Mechanics. / Programming theory. / Rotation. / Beam theories. / Couple stress. / Elastic beams. / Euler Bernoulli beams. / Micro-rotation. / Micropolar beam. / Micropolar continuum. / Momentum equations. / Power series expansions. / Stresses.

Material growth and remodeling formulation based on the finite couple stress theory

Author

Javadi, M.

Publisher

Elsevier Ltd,

Pub. Year

2020

Subjects

Growth. / Length scale. / Remodeling. / The Eshelby stress. / The finite couple stress theory. / The Mandel stress. / Constitutive equations. / Continuum mechanics. / Entropy. / Growth (materials) / Tensors. / Cauchy stress tensors. / Couple stress theory. / Eshelby. / Length scale. / Linear and angular momentums. / Material inhomogeneities. / Mathematical formulation. / Remodeling. / Stress analysis.

Stresses conjugate to the Jaumann rate of Eulerian strain measures

Author

Asghari, M.

Pub. Year

2007

Subjects

Coalescence. / Stress analysis. / Coalescent principal stretches. / Eulerian strain measures. / Jaumann rate. / Strain measurement.