The exponential fitting technique uses information on the expected behaviour of solution a differential problem to define accurate and efficient numerical methods. In particular, exponentially fitted methods are very effective when applied problems with oscillatory solutions. this cases, compared standard methods, they have proved be even using large integration steps. paper we consider Runge-K...

Mesh adaptation for immersed solid is one of the most challenging topics in computational mechanics. In this contribution, we propose a novel anisotropic adaptive body-fitted mesh method particular Computational Fluid Dynamics (CFD) where boundary layers and high gradient solution at fluid–solid interface play major role. It characterized by its simplicity to implement, generality tackle comple...

In this study, a hyper-redundant manipulator was designed for detection and searching in narrow spaces aerospace earthquake rescue applications. A forward kinematics equation the derived using homogeneous coordinate transformation method. Based on modal function backbone curve method known path, an improved curves proposed. First, configuration of divided into two parts: mode segment path segme...

In order to ensure the mechanical performance and machining accuracy of machine tool, problem mutual deviations tool moving parts in process, which causes errors subsequent prediction difficulties, is solved. Firstly, structure motion mechanism are analysed; a static model posture relationship established using multi-body system theory coordinate transformation; measured deviation values fitted...

Coordinate descent (CD) algorithms have become the method of choice for solving a number of machine learning tasks. They are particularly popular for training linear models, including linear support vector machine classification, LASSO regression, and logistic regression. We propose an extension of the CD algorithm, called the adaptive coordinate frequencies (ACF) method. This modified CD schem...

The six-degree equations of flight in their classic form do not provide a proper physical perception due to a number of interferences. Nor do they render visible the important role of attack angles. In this study, attempts have been made to develop a complete set of 3D acceleration equations from the equations of normal and tangential acceleration αN=vωv, αt=v ̇. For this purpose, a coordinate s...