Our heavyweight helicopter equal in the world does not have
In Rostov started production of the most load-lifting rotary-wing car The Russian holding «Helicopt[...]
Rate of shear strain
 |
 |
Consider Fig. 2.25. This shows an elemental control volume ABCD that initially at time t = tj is square. After an interval of time 6t has elapsed ABCD has moved and distorted into A’B’C’D’. The velocities at t = /,■ at A, В and C are given by
 |
Fig. 2.25
