Showing papers by "Ilinca Stanciulescu published in 2021"
TL;DR: In this article, an energy-momentum conserving temporal integration scheme for geometrically exact shell formulation with drilling degrees of freedom is presented based on a novel idea of defining mixed discrete derivatives for holonomic constraint functions with displacements and rotations.
Abstract: An energy–momentum conserving temporal integration scheme is presented for a recently proposed geometrically exact shell formulation with drilling degrees of freedom. The scheme is based on a novel idea of defining mixed discrete derivatives for holonomic constraint functions with displacements and rotations. By defining general discrete derivative expressions with unknown terms, the mixed discrete derivatives with second-order accuracy are constructed according to deformation modes to satisfy directionality and orthogonality properties simultaneously, thus preserving conservation laws of total energy and momenta. The analysis of shell structures is conducted using the weak form quadrature elements to ensure exact incorporation of constraints and conservation of total energy after discretization, as well as circumvent shear and membrane locking phenomena. Benchmark numerical examples are presented to demonstrate the validity of the present scheme.
4 citations
01 Sep 2021
TL;DR: In order to predict and prolong the service life of the wet clutch, a test bench is used in this paper to predict the temperature field of the clutters. But the wet clutters are not considered in this paper.
Abstract: The temperature field of the wet clutch is an important factor that influences the vehicle transmission performance. In order to predict and prolong the service life of the wet clutch, a test bench...
2 citations