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Design optimization and stiffness-equivalent method for an integrated starter generator in aerospace applications. [PDF]

Sci Rep
Han B, Kwak E, Lee S, Kim Y, Kim H, Bae JY.   +5 more
europepmc   +1 more source

Stiffness in technical initial problems

AIP Conference Proceedings, 2012
Technical initial problems are defined as initial problems where the right-hand side functions of the system are those occurring in the technical practice, that is functions generated by adding, multiplying and superposing elementary functions. Such systems can be expanded into systems with only rationals operations on the right-hand sides of the ...
Jiří Kunovský, Václav Šátek, Václav Vopěnka, Alexander Schirrer   +3 more
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Redox-Responsive Hydrogels with Decoupled Initial Stiffness and Degradation

Biomacromolecules, 2021
Disulfide-cross-linked hydrogels have been widely used for biological applications because of their degradability in response to redox stimuli. However, degradability often depends on polymer concentration, which also influences the hydrogel mechanical properties such as the initial stiffness.
Charng-Yu Lin, Carly M. Battistoni, Julie C. Liu   +2 more
openaire   +2 more sources

DESI methods for stiff initial-value problems

ACM Transactions on Mathematical Software, 1996
Recently, the so-called DESI (diagonally extended singly implicit) Runge-Kutta methods were introduced to overcome some of the limitations of singly implicit methods. Preliminary experiments have shown that these methods are usually more efficient than the standard singly implicit Runge-Kutta (SIRK) methods and, in many cases, are competitive with ...
John C. Butcher, Jeff R. Cash, M. T. Diamantakis   +2 more
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An MEBDF code for stiff initial value problems

ACM Transactions on Mathematical Software, 1992
In two recent papers one of the present authors has proposed a class of modified extended backward differentiation formulae for the numerical integration of stiff initial value problems. In this paper we describe a code based on this class of formulae and discuss its performance on a large set of stiff test problems.
Jeff R. Cash, S. Considine
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Accelerated initial stiffness schemes for elastoplasticity

International Journal for Numerical and Analytical Methods in Geomechanics, 2000
The authors study the numerical behaviour of various initial stiffness iterative schemes for solving the nonlinear finite element equations arising at each incremental step in geomechanical elastoplasticity. From the mathematical point of view, the initial stiffness iterative methods are nothing but Richard-type iterations preconditioned by the initial
Sloan, Scott W., Sheng, Daichao, Abbo, Andrew J.   +2 more
openaire   +2 more sources