One of the fundamental problems in the manufacturing processes of turbomachine components is to provide them with an appropriate coordinate system. In other words, to provide them with a suitable mesh. Among the mesh generation processes and the resulting geometries for blades, there are methods that use functions related to the dynamics of the fluid's streamlines, and others, more practical, that are based on parameterization using “natural” coordinates on the surface of the element. This work demonstrates the implementation of Bernstein polynomials to parameterize the geometry of a Francis 99 turbine blade through a suitable least-squares problem. The methodology used is versatile and can be applied to blades of various geometries commonly used in turbomachine design.
Abstract One of the fundamental problems in the manufacturing processes of turbomachine components is to provide them with an appropriate coordinate system. In other words, to provide [...]
Base isolation is currently acknowledged as an effective strategy for controlling the seismic response of buildings. However, its implementation is usually limited to buildings considered essential or vital to society, resulting in these systems being rarely regarded as a feasible structural option. This study examines the impact of a base isolation system on the seismic response of a six-story building situated in a moderately seismic zone. Parameters such as floor drift and shear force demand were assessed to quantify the seismic response. These aspects are not only associated with potential damage but also play a critical role in predicting the initial construction cost. Additionally, these parameters are used as design criteria in building codes and regulations.
Abstract Base isolation is currently acknowledged as an effective strategy for controlling the seismic response of buildings. However, its implementation is usually limited to buildings [...]
Blade's parameterization of a Francis 99 turbine using Bernstein polynomials 
