| 摘要 |
The invention concerns the methods for derermination of hydrodynamic characteristics of underwater floating objects, especially at testing of their structurally reduced models. It can be used for the testing of rockets starting up from underwater level, submarine boats, fishes-robots, etc. Its purpose is simplification of method, reduction in price and expansion of geography of testing by their carrying out without use of aerodynamic and hydrodynamic pipes. The specified purpose is reached by means of mounting of elastic extensible tank in the cut out volume inside a head part of object, inflating and sealing it, obligatory keeping the initial external contours of object unchanged. Subsequently the object is installed at a bottom of a pool with depth L (fig.3). After it is released and time of its movement up to the pool's surface, as well as the hydrodynamic resistance force are measured, velocity of its motion up is calculated and finaly factor of hydrodynamic resistance of object is determined. |
