Zobrazeno 1 - 10
of 75
pro vyhledávání: '"37N15"'
Autor:
Jiménez, V. M.
In Continuum Mechanic a simple material body $\mathcal{B}$ is represeted by a three-dimensional differentiable manifold and the configuration space is given by the space of embeddings $Emb \left( \mathcal{B} , \mathbb{R}^{n} \right)$. We use the topo
Externí odkaz:
http://arxiv.org/abs/2402.03039
Autor:
Roy, Arjun, Cusumano, Joseph P.
We study the non-linear dynamics and failure statistics of a coupled-field fatigue damage evolution model. We develop a methodology to derive averaged damage evolution rate laws from such models. We show that such rate laws reduce life-cycle simulati
Externí odkaz:
http://arxiv.org/abs/2312.17350
Publikováno v:
Nonlinear Dynamics 2023
This paper analyzes the impact of parametric uncertainties on the dynamics of bistable energy harvesters, focusing on obtaining statistical information about how each parameter's variability affects the energy harvesting process. To model the paramet
Externí odkaz:
http://arxiv.org/abs/2302.12769
Autor:
Norenberg, João Pedro, Luo, Roberto, Lopes, Vinicius Goncaalves, Peterson, João Victor L. L., Cunha Jr, Americo
Publikováno v:
International Journal of Mechanical Sciences 2023
The paper investigates asymmetries effects over a nonlinear vibration energy harvester dynamics. The asymmetric system performance is compared with symmetric ones. Different asymmetry levels on restoring force and gravity action are investigated from
Externí odkaz:
http://arxiv.org/abs/2209.06906
Autor:
Cunha Jr, Americo, Pereira, Marcelo, Avanço, Rafael, Tusset, Angelo Marcelo, Balthazar, José Manoel
Publikováno v:
Meccanica (2022)
The present work revisits the reduction of the nonlinear dynamics of an electromechanical system through a quasi-steady state hypothesis, discussing the fundamental aspects of this type of approach and clarifying some confusing points found in the li
Externí odkaz:
http://arxiv.org/abs/2205.15079
We develop a methodology to construct low-dimensional predictive models from data sets representing essentially nonlinear (or non-linearizable) dynamical systems with a hyperbolic linear part that are subject to external forcing with finitely many fr
Externí odkaz:
http://arxiv.org/abs/2201.04976
Painlev\'e showed that there can be inconsistency and indeterminacy in solutions to the equations of motion of a 2D rigid body moving on a sufficiently rough surface. The study of Painlev\'e paradoxes in 3D has received far less attention. In this pa
Externí odkaz:
http://arxiv.org/abs/2110.14324
While data-driven model reduction techniques are well-established for linearizable mechanical systems, general approaches to reducing non-linearizable systems with multiple coexisting steady states have been unavailable. In this paper, we review such
Externí odkaz:
http://arxiv.org/abs/2110.01929
Publikováno v:
Mec\'anica Computacional, vol. 32, pp. 763-773, 2013
This work presents the estimation of the parameters of an experimental setup, which is modeled as a system with three degrees of freedom, composed by a shaft, two rotors, and a DC motor, that emulates a drilling process. A Bayesian technique is used
Externí odkaz:
http://arxiv.org/abs/2107.13535
Autor:
Cunha Jr, Americo, Sampaio, Rubens
Publikováno v:
Mec\'anica Computacional, vol. 31, pp. 2673-2683, 2012
This work studies the dynamics of a one dimensional elastic bar with random elastic modulus and prescribed boundary conditions, say, fixed at one end, and attached to a lumped mass and two springs (one linear and another nonlinear) on the other extre
Externí odkaz:
http://arxiv.org/abs/2107.12574