three-dimensional modeling

Review and complement of methods for changing the movement speed of mechanisms and machines elements

In mechanical drives of machines there is a need to control changes in the speed of their actuators. Stepped and stepless gearboxes are used for this purpose. Known speed control devices have many disadvantages that adversely affect the durability and reliability of drive components and machines in general. These include the design complexity, high material consumption, automation complexity, dynamic loads during transitions from one speed to another, intensive wear of parts due to the friction connections use.

3D geoelectric model of the Zmiyinyi island

Purpose. Construction of three-dimensional geoelectric model of the Zmiyniy Island and the nearby waters of the northern Black Sea shelf. Methods. Methodology. The methodology of research is directly linked to the procedure of the three-dimensional geoelectric model construction. It involves the selection of the spatial parameters of the model and its cells, and the model is built against the background of the "normal" one-dimensional geoelectric section in this area.