Papers by Keyword: Complex Structures

Abstract: In order to obtain a better designing of the industrial products, various software can be used. Sometimes, such a software allows simulation and highlighting the behavior of the product during its use. It is important to know and select adequate software applicable in the engineer activity. The study of the accessible information showed that such a software is ANSYS. In this paper, a case study for some modalities of modern calculation by FEM method using ANSYS program is presented.

Abstract: According to model analysis of gilling machine’s hauling box, this paper presents the research on the complex structure’s model analysis. Before the analysis of box, the paper inducted general analysis process, then the box was divided into 8 modules, advanced function MPC and super-element were used to process connection among these modules, the processed model was analyzed by finite-element software Nastran. The result from Nastran include natural frequencies and mode shapes, which are similar to actual work condition. It can be concluded that the process for complex structure is accurate. The result is useful to find the reason of box vibration, and it is also used for optimization design.

Abstract: New tools are nowadays available to solve the crystallographic structure of complex compounds in metallic alloy systems and a vivid interest manifests itself to discover new compounds in multi-constituent alloys with hundreds or more atoms per unit cell. Meanwhile, it is observed that the metallic character of the alloy progressively disappears with increasing the number of atoms in the unit cell. This contribution focuses at a few examples of this atypical behavior of complex metallic alloys, including quasicrystals as the ultimate state of structural complexity in a crystal made of metals. Emphasis is put on surface properties.