Structural Design and Optimization of Interior Scaffolds in Artificial Bone

Author(s):  
Zhongzhong Chen ◽  
Xilan Feng ◽  
Zhiqiang Jiang
2014 ◽  
Vol 553 ◽  
pp. 847-852 ◽  
Author(s):  
Benjamin J. Morrell ◽  
David J. Munk ◽  
Gareth A. Vio ◽  
Dries Verstraete

The design and optimization of hypersonic aircraft is severely impacted by the high temperatures encountered during flight as they can lead to high thermal stresses and a significant reduction in material strength and stiffness. This reduction in rigidity of the structure requires innovative structural concepts and a stronger focus on aeroelastic deformations in the early design and optimisation of the aircraft structure. This imposes the need for a closer coupling of the aerodynamic and structural design tools than is current practice. The paper presents the development of a multi-disciplinary, closely coupled optimisation suite for hypersonic aircraft. An overview of the setup and structure of the optimization suite is given and the integration between the Tranair solver, used to determine the aerodynamic loads and temperatures, and MSC/NASTRAN, used for the structural sizing and design, will be given.


2018 ◽  
Vol 151 ◽  
pp. 160-172 ◽  
Author(s):  
Ruiwei Liu ◽  
Hongwei Guo ◽  
Rongqiang Liu ◽  
Hongxiang Wang ◽  
Dewei Tang ◽  
...  

2020 ◽  
Vol 143 ◽  
pp. 01029
Author(s):  
Anna Doroshenko

Currently, artificial neural networks (ANN) are used to solve the following complex problems: pattern recognition, speech recognition, complex forecasts and others. The main applications of ANN are decision making, pattern recognition, optimization, forecasting, data analysis. This paper presents an overview of applications of ANN in construction industry, including energy efficiency and energy consumption, structural analysis, construction materials, smart city and BIM technologies, structural design and optimization, application forecasting, construction engineering and soil mechanics.


1991 ◽  
Vol 113 (1) ◽  
pp. 61-66 ◽  
Author(s):  
A. Moshaiov ◽  
M. R. Steinhilber

A major consideration in the recent development of marine transportation for ice-infested waters is the strength required for ships’ hulls. Plasticity methods are currently used in conjunction with given design ice loads. In this paper, a new plasticity model is suggested. It is based on the assumption that the kinetic energy of the ice/ship collision is absorbed both by the ice and the structure. During the collision process, the ice/structure contact area varies due to ice crushing, which dissipates some of the energy. At the same time, the plating may deform plastically, absorbing the remaining energy. Other forms of energies and ice failures are not accounted for, allowing a conservative estimate of the damage. A parametric study is performed, revealing the significance of the energy absorbed by the ice in reducing the predicted permanent deflection of the plating. The new model is shown to be useful for ship structural design and optimization in addition to the evaluation of operating restrictions. Several recommendations for further development of the model are discussed, including the incorporation of strain rate sensitivity of the ice-crushing strength and the plating yield strength.


1995 ◽  
Vol 23 (4) ◽  
pp. 497-520 ◽  
Author(s):  
J. L. T. Santos ◽  
A. Siemaszko ◽  
S. Gollwitzer ◽  
R. Rackwitz

2018 ◽  
Vol 20 (2) ◽  
pp. 025602
Author(s):  
Chengzhi CAO ◽  
Yudong PAN ◽  
Zhiwei XIA ◽  
Bo LI ◽  
Tao JIANG ◽  
...  

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