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- Max Planck Institute for Gravitational PhysicsDE902 papers
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253 papers · 1 filter
Exceptional piezoelectricity, high thermal conductivity and stiffness and promising photocatalysis in two-dimensional MoSi2N4 family confirmed by first-principles
Bohayra Mortazavi, Brahmanandam Javvaji, Fazel Shojaei +3
Chemical vapor deposition has been most recently employed to fabricate centimeter-scale high-quality single-layer MoSi2N4 (Science; 2020;369; 670). Motivated by this exciting exper…
Toward understanding the self-adaptive dynamics of a harmonically forced beam with a sliding mass
Malte Krack, Noha Aboulfotoh, Jens Twiefel +3
A mechanical system consisting of an elastic beam under harmonic excitation and an attached sliding body is investigated. Recent experimental observations suggest that the system p…
A High-Order Harmonic Balance Method for Systems With Distinct States
Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek
A pure frequency domain method for the computation of periodic solutions of nonlinear ordinary differential equations (ODEs) is proposed in this study. The method is particularly s…
A method for nonlinear modal analysis and synthesis: Application to harmonically forced and self-excited mechanical systems
Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek
The recently developed generalized Fourier-Galerkin method is complemented by a numerical continuation with respect to the kinetic energy, which extends the framework to the invest…
Nonlinear modal analysis of nonconservative systems: Extension of the periodic motion concept
Malte Krack
As the motions of nonconservative autonomous systems are typically not periodic, the definition of nonlinear modes as periodic motions cannot be applied in the classical sense. In…
On the computation of the slow dynamics of nonlinear modes of mechanical systems
Malte Krack, Lars Panning-von Scheidt, Jörg Wallaschek
A novel method for the numerical prediction of the slowly varying dynamics of nonlinear mechanical systems has been developed. The method is restricted to the regime of an isolated…