Self-adaptation procedures in genetic algorithms applied to the optimal design of composite structuresInternational Journal of Mechanics and Materials in Design - Tập 5 - Trang 289-302 - 2009
Carlos Conceição António
It is recognized that the efficiency of Genetic Algorithms improves if some
adaptive rules are included. In this work, adaptive properties in Genetic
Algorithms applied to structural optimization are studied. The adaptive rules
work by using additional information related to the behavior of state and design
variables of the structural problem. At each generation, the self-adaptation of
the genetic... hiện toàn bộ
Modelling of the mechanical response of Zr–Nb and Ti–Nb alloys in a wide temperature rangeInternational Journal of Mechanics and Materials in Design - Tập 16 - Trang 215-224 - 2019
Vladimir A. Skripnyak, Vladimir V. Skripnyak, Evgeniya G. Skripnyak, Nataliya V. Skripnyak
This article presents the results of modeling the mechanical behavior of Zr–Nb
and Ti–Nb alloys in a range of strain rates from 0.001 to 1000 1/s and
temperature range 297–1273 K. A modification of constitutive equations
describing the mechanical response of fine-grained and coarse-grained Zr–1Nb and
Ti–13Nb–13Zr alloys in a wide temperature range is proposed. It was shown that
the phase transitio... hiện toàn bộ
Identification of stiffness and damping characteristics of axial air-foil bearingsInternational Journal of Mechanics and Materials in Design - Tập 7 - Trang 231-243 - 2011
Vikas Arora, P. J. M. van der Hoogt, R. G. K. M. Aarts, A. de Boer
Air-foil bearings (AFBs) are self acting hydrodynamic bearings made from sheet
metal foils comprised of at least two layers. The innermost “top foil” layer
traps a gas pressure film that supports a load while the layer or layers
underneath provide an elastic foundation. AFBs are currently used in many
commercial applications, both terrestrial and in aerospace. AFBs provide a means
to eliminate the... hiện toàn bộ
The effect of the horizontal vibrations on natural heat transfer from an isothermal array of cylindersInternational Journal of Mechanics and Materials in Design - Tập 7 - Trang 313-326 - 2011
H. Shokouhmand, S. M. A. Noori Rahim Abadi, A. Jafari
A numerical investigation is carried out to study an unsteady laminar natural
convection heat transfer caused by an array of isothermal oscillating circular
cylinders. Under oscillating conditions, flow and thermal fields are categorized
into a class of moving boundary problems. In this study, the moving interfaces
between the fluid and cylinders have been considered. The numerical model used
in t... hiện toàn bộ
A new approach on vibration analysis of locally nonlinear stiffness and damping systemInternational Journal of Mechanics and Materials in Design - Tập 3 - Trang 1-6 - 2006
Wang Yong, Huang Qibai, Zhou Minggang, Zhang Yongbo
The nonlinear force induced by spring and damping of 2-degree-of-freedom locally
nonlinear vibrating system is regarded as applied force, and its mathematical
model is established in this paper. Then impulse response temporal method of
linear vibrating system is applied in the system, the response of locally
nonlinear vibrating system is obtained by convolution integration between unit
impulse res... hiện toàn bộ