作者：
Y.X.HaoW.ZhangJ.YangCollege of Mechanical Engineering
Beijing Information Science and Technology UniversityBeijing 100192P.R.China College of Mechanical EngineeringBeijing University of TechnologyBeijing 100124P.R.China School of AerospaceMechanical and Manufacturing EngineeringRMIT UniversityPO Box 71BundooraVIC 3083Australia
Although there are some methods and results having been reported for nonlinear detection in crack evaluation, the accurate characterization of nonlinearity or nonlinear phenomena is still a challenging issue to tackle...
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Although there are some methods and results having been reported for nonlinear detection in crack evaluation, the accurate characterization of nonlinearity or nonlinear phenomena is still a challenging issue to tackle. Focusing on vibration based crack detection methods in this paper, the accurate detection of nonlinearity in vibration signals usually encounter the following difficulties. The one could be that, the
Carbon nanotubes (CNTs) exhibit exceptional physical, mechanical and electrical properties which have made them potentially useful for many applications in nanotechnology, electronics, optics and other fields of mater...
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Carbon nanotubes (CNTs) exhibit exceptional physical, mechanical and electrical properties which have made them potentially useful for many applications in nanotechnology, electronics, optics and other fields of materials science. As a result, progressive research activities regarding CNTs have been ongoing in recent years. Here, we explore the buckling properties of CNTs under axial compression using the
In this talk, a piecewise linear system with two parameters is introduced to investigate the transition of bifurcations and chaotic dynamics of a piecewise smooth linear system under the perturbation of weak dissipati...
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In this talk, a piecewise linear system with two parameters is introduced to investigate the transition of bifurcations and chaotic dynamics of a piecewise smooth linear system under the perturbation of weak dissipation and harmonic external excitation. The piecewise linear continuous unperturbed system exhibits triple well characteristic. The discontinuous unperturbed piecewise linear system, which can be seen as the
Nonlocal theory of continuum mechanics possesses a great potential in the discussion of materials in the atomic scale and its relationship to the atomic lattice theory must be established to understand the physical si...
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Nonlocal theory of continuum mechanics possesses a great potential in the discussion of materials in the atomic scale and its relationship to the atomic lattice theory must be established to understand the physical significance of nonlocal moduli. Helmholtz type kernels for nonlocal elasticity theory, derived analytically as Green functions of Helmholtz equations, are studied in 1D and 2D systems. The nonlocal
The global structure of a nonlinear dynamical system, including attractors, unstable invariant limit sets and their stable and unstable manifolds, decides the dynamical behavior of the system. The aim of global analys...
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The global structure of a nonlinear dynamical system, including attractors, unstable invariant limit sets and their stable and unstable manifolds, decides the dynamical behavior of the system. The aim of global analysis of dynamical systems is to reveal the global structure in order to understand the mechanisms of global dynamical phenomena, such as intermittency, crises and boundary metamorphoses etc.. However, it
The mechatronic system is composed of a mechanical part and driven by a permanent magnet synchronous motor (PMSM). The motor-table system, LCD glass-handling robot and motor-toggle mechatronic system are dynamically f...
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The mechatronic system is composed of a mechanical part and driven by a permanent magnet synchronous motor (PMSM). The motor-table system, LCD glass-handling robot and motor-toggle mechatronic system are dynamically formulated in the mechanical and electrical equations. The point-to-point (PTP) energy-saving trajectory is planned by a high-degree polynomial, which satisfies the
Inerter is a recently proposed concept and a device with the property that the applied force at its two terminals is proportional to the relative acceleration between them. As a new passive mechanical element, the per...
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Inerter is a recently proposed concept and a device with the property that the applied force at its two terminals is proportional to the relative acceleration between them. As a new passive mechanical element, the performance benefits of using inerters in various mechanical systems have been well demonstrated. This work investigates the influence of inerter on the natural frequencies of vibration systems. By
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